roadside barriers - mash implementation update & design ... · roadside barriers - lessons...
TRANSCRIPT
Roadside Barriers - MASH Implementation Update amp Design Lessons Learned
Richard Stepp and Derwood Sheppard
2019
Roadside Barriers - Lessons Learned
1 GUARDRAIL Standard Plans Index 536-001
2 CONCRETE BARRIER Standard Plans Index 521-001
3 PIER PROTECTION BARRIER Standard Plans Index 521-002
Roadside Barriers - Lessons Learned
Design is generally governed by
1 FDOT Design Manual (FDM)httpswwwfdotgovroadwayfdmdefaultshtm
Roadside Barriers - Lessons Learned
Design is generally governed by
2 FDOT Standard Planshttpswwwfdotgovdesignstandardplans
Roadside Barriers - Lessons Learned
Design is generally governed by
3 Standard Plans Instructionshttpswwwfdotgovdesignstandardplans
Roadside Barriers - Lessons Learned
Design is generally governed by
4 Standard Specificationshttpswwwfdotgovprogrammanagement
implementedspecbooksdefaultshtm
Grading Any issues here
Guardrail Index 536-001
Answerhellip
YES
bull Front slope looks too steep
bull Slope break likely too close to post
Photo Credit Bill Fitzgerald PEKLS Engineering LLC
Grading lsquoStandard Postrsquo Requirements
Guardrail Index 536-001 Sheet 6
bull Front slope must be 12 or flatter
bull Slope break must be 2 feet behind postUnless
Grading lsquoDeep Postrsquo Requirements
Guardrail Index 536-001 Sheet 6
bull If lsquoDeep Postrsquo is called for slope break may be located at Center Line of post
bull STILL Front slope must be 12 or flatterNote Unique Pay Item 536-7-1
Guardrail Index 536-001
Shoulder Widens Any issue here
Answerhellip YESbull ldquoTaper Raterdquo requirement is violatedbull Per Standard Plans Instructions (SPI) Part I
bull Design Speed le 45 mph requires 110 Maxbull Design Speed gt 45mph requires 115 Max
Single Face to Double Face Any Issue
Guardrail Index 536-001 Sheet 9
Answerhellip
YES
bull ldquoTrailing Anchoragerdquo Standard is not used here (not detailed this way)
Index 536-001 does not show this as a Trailing Anchorage scenario and the details are not compatible or required
Single Face to Double Face Solution
Guardrail Index 536-001
Call for a Standard ldquoFlared End Unitrdquo (included with General Guardrail Pay Item) More guidance provided in next yearrsquos eBook
bull No ldquoTrailing Anchoragerdquo
bull Just call out Begin and End of guardrail types (on face closest to traveled way)
CRT System (Radial) Any issue here
Guardrail Index 536-001 Sheets 11 amp 12
AnswerhellipYES
First IssueObstruction is in the ldquoClear Area Limitrdquo per Standard Plans
(Controlled Release Terminal)
Guardrail Index 536-001 Sheets 11 amp 12
CRT System (Radial)AnswerhellipYES
First IssueObstruction is in the ldquoClear Area Limitrdquo per Standard Plans
Photo Credit Bill Fitzgerald PEKLS Engineering LLC
Guardrail Index 536-001 Sheets 11 amp 12
bull ldquoClear Areardquo Required (15rsquox30rsquo)
bull ldquoClear Areardquo is free of obstructions and has 12 Slope Max
CRT System (Radial) From Standard Planshellip
Guardrail Index 536-001 Sheets 11 amp 12
Requires 25-footlinear End TreatmentPer Standard Plans
(12rsquo-6rdquo Shown)
CRT System (Radial) Any other issue here
Guardrail Index 536-001 Sheets 11 amp 12
bull 25-foot linear End Treatment required
bull If this is not possible due limited space use a lsquovariationrsquo for General Radial Guardrail (Not CRT)(No breakaway posts)
CRT System (Radial) Per Standard Planshellip
Guardrail Index 536-001 Sheet 20
Pipe Rail Callouts Any issue hereAnswerhellip YES
Pipe Rail must terminate outside of End Treatments per SPI Part E and Standard PlansSolution
Guardrail Index 536-001 Sheets 13-15
Rigid Barrier Connections End Shielding
Guardrail Index 536-001 Sheets 13-15
Rigid Barrier Connection Any Issue HereAnswerhellip YES
asymp13 foot overlap with barrier is no longer Standard
(Overlap now only 7frac14rdquo Since FY2017-18 Standards for newsingle-faced guardrail)
Guardrail Index 536-001 Sheets 13-15
Rigid Barrier Connection Any Issues HereYES
asymp13 foot overlap with barrier is no longer Standard
(Overlap now only 7frac14rdquo Since FY2017-18 Standards for newsingle-faced guardrail)
Guardrail Index 536-001 Sheets 13-15
Rigid Barrier Connection Any Issues Here
Solution
YES
asymp13 foot overlap with barrier is no longer Standard
(Overlap now only 7frac14rdquo Since FY2017-18 Standards for newsingle-faced guardrail)
Guardrail Index 536-001 Sheets 7-8 13-14
Answerhellip
YES
Guardrail system ishellip
not long enough
Rigid Barrier Connection Any issue here
Minimum Length is Length of Approach Transition Connection lsquoLArsquoplus Length of End Treatment lsquoLErsquo
Guardrail Index 536-001 Sheets 7-8 13-14
Rigid Barrier End Shielding Min Length TL-2
lsquoLArsquo 213rsquo
+lsquoLErsquo 406rsquo
=
62rsquo
Guardrail Index 536-001 Sheets 7-8 13-14
Rigid Barrier End Shielding Min Length TL-2
lsquoLArsquo 213rsquo
+lsquoLErsquo 406rsquo
=
62rsquo
Guardrail Index 536-001 Sheets 7-8 13-14
Rigid Barrier End Shielding Min Length TL-3
lsquoLArsquo 306rsquo
+lsquoLErsquo 531rsquo
=
84rsquo
Guardrail Index 536-001 Sheets 7-8 13-14
Rigid Barrier End Shielding Min Length TL-3
lsquoLArsquo 306rsquo
+lsquoLErsquo 531rsquo
=
84rsquoNOTE If these lengths are not possible due to limited space consider the use of a Crash Cushion or a project-specific lsquovariationrsquo to fit the best barrier system possible
Contact Central Office for assistance
Guardrail Index 536-001 Sheets 7-8
Approach Terminals
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Any issues hereAnswerhellip YES
1 Flared terminals not permitted per RDB18-02
2 Curbed conditions require parallel Approach Terminals per Standard Plans ampSPI Part C3 Approach Terminals require lsquoType Ersquo Curb
Guardrail Index 536-001 Sheets 7-8
Approach Terminals
From Standard Planshellip
Answerhellip YES
1 Flared terminals not permitted per RDB18-02
2 Curbed conditions require parallel Approach Terminals per Standard Plans ampSPI Part C3 Approach Terminals require lsquoType Ersquo Curb
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Solution
1 Flared terminals not permitted per RDB18-02
2 Curbed conditions require parallel Approach Terminals per Standard Plans
3 Approach Terminals require lsquoType Ersquo Curb
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Any issues hereYES Wrong
First issuehellipFront slope break should be 6 feet behind guardrail face at post 1 per the Standards (110 Max)
Second issuehellipMisc Asphalt should extend 10 feet upstream of post 1 per Standards
Answerhellip
Guardrail Index 536-001 Sheets 7-8
Approach TerminalsYES Wrong
First issuehellipFront slope break should be 6 feet behind guardrail face at post 1 per the Standards (110 Min)
Second issuehellipMisc Asphalt should extend 10 feet upstream of post 1 per Standards
Answerhellip
From Standard Planshellip
Guardrail Index 536-001 Sheets 7-8
Approach TerminalsYES Wrong
First issuehellipFront slope break should be 6 feet behind guardrail face at post 1 per the Standards (110 Min)
Second issuehellipMisc Asphalt should extend 10 feet upstream of post 1 per Standards
Answerhellip
Example of Poor Slope Break Location (and steep slope not shielded)
Photo Credit Bill Fitzgerald PE
Guardrail Index 536-001 Sheets 7-8
Approach TerminalsYES Wrong
First issuehellipFront slope break should be 6 feet behind guardrail face at post 1 per the Standards (110 Min)
Second issuehellipMisc Asphalt should extend 10 feet upstream of post 1 per Standards
Answerhellip
Example of Poor Grading (The reason for Misc Asphalt requirement)
Photo Credit Bill Fitzgerald PE
Guardrail Index 536-001 Sheets 7-8
Approach Terminals SolutionYES Wrong
First issuehellipFront slope break should be 6 feet behind guardrail face at post 1 per the Standards (110 Min)
Second issuehellipMisc Asphalt should extend 10 feet upstream of post 1 per Standards
Answerhellip
Correctedhellip
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Any issues hereYES Wrong
First issuehellipTrees are within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
Second issuehellipTree violates barrier setback per FDM Table 21542
Answerhellip
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Any issues hereYES Wrong
First issuehellipTrees are within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
Second issuehellipTree violates barrier setback per FDM Table 21542
Answerhellip
Guardrail Index 536-001 Sheets 7-8
Approach TerminalsYES Wrong
First issuehellipTrees are within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
From Standard Planshellip
Guardrail Index 536-001 Sheets 7-8
Approach Terminals
CREDIT VIRGINIA DOT ndash SKT Crash Test Published October 2016
httpswwwyoutubecomwatchv=OsKlfatcjogampfeature=youtube
httpswwwyoutubecomwatchv=h7tct7Oo9-8ampfeature=youtube
YES Wrong
First issuehellipTrees are within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
Guardrail Index 536-001 Sheets 7-8
Approach Terminals
CREDIT VIRGINIA DOT ndash SKT Crash Test Published October 2016
httpswwwyoutubecomwatchv=74ImLTY-PhUampfeature=youtube
YES Wrong
First issuehellipTrees are within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
Guardrail Index 536-001 Sheets 7-8
Approach TerminalsYES Wrong
First issuehellipTrees are within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
From Standard Planshellip
Guardrail Index 536-001
YES Wrong
Second issuehellipTree violates barrier setback per FDM Table 21542
Guardrail Index 536-001
YES Wrong
Second issuehellipTree violates barrier setback per FDM Table 21542
From FDMhellip
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Any issue hereYES Wrong
First issuehellipPerpendicular guardrail is not proven crashworthybull No end treatmentsbull Violates ldquotaper raterdquo
requirements of SPI Part I (big time)
bull Requires shielding if within Clear Zone
Answerhellip
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Any issue hereYES Wrong
Second issuehellipPerpendicular guardrail within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Any issue hereYES Wrong
Third issuehellipPerpendicular guardrail violates barrier setback per FDM Table 21542
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Solution 1
REMOVE theperpendicularGuardrail
Orhellip
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Solution 2
1 Extend Guardrail to meet Length of Need per SPI Part B (Excel lsquoDesign Toolrsquo) which is Roadside Design Guide Eq 5-3
2 Meet minimum barrier setback per FDM Table 21542 (5 feet for general guardrail)
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Final Case StudyAssumptionsbull Design Speed
50 mph
bull Piers designed to withstand 600 kip impact load per FDM215454(Pier Protection Barrier notRequired)
Guardrail Index 536-001
Approach Terminals Any issue hereAnswerhellip YES
First issuehellipPiers NOT shielded
ldquoLength of Needrdquo NOT met per SPI Part B (Excel Design Tool)
Guardrail Index 536-001
Approach Terminals Any issue hereAnswerhellip YES
First issuehellipPiers NOT shielded
ldquoLength of Needrdquo NOT met per SPI Part B (Excel Design Tool)
Piers are behind the ldquogatingrdquo(break-away) portion of Approach Terminal
Guardrail Index 536-001
Approach Terminals Any issue hereYES
Second issuehellipFlared Terminal usage on hold per RDB18-02
Regardlesshellip ldquoTaper Raterdquo too steep here at Approach Terminal (about 13 shown)
Guardrail requires 115 Max Taper Rate per SPI Part I
Guardrail Index 536-001
Approach Terminals Any issue hereAnswerhellip YES
Third issuehellipldquoBarrier Setbackrdquo requirement likely not satisfied
per FDM Table 21542(5 feet or greater)hellip
Guardrail Index 536-001
Approach Terminals Any issue hereYES
Fourth issuehellipldquoTrailing Anchoragerdquo not properly extended downstream of hazard
25-foot Requirement SPI C1 amp lsquoLONrsquo Design Tool (Excel)hellip
Answerhellip
Guardrail Index 536-001
Approach Terminals Any issue hereYES
Fourth issuehellipldquoTrailing Anchoragerdquo not properly extended downstream of hazard
25-foot Requirement SPI C1 amp lsquoLONrsquo Design Tool (Excel)hellip
AnswerhellipFrom lsquoLength of Needrsquo Excel Sheethellip
Guardrail Index 536-001 Crash Cushion Index 544-001
Approach Terminals Solution 1lsquoCrash Cushionrsquobull ldquoSystem Widthrdquo ndash
lsquoWidersquo per SPI 544-001 Part C
bull ldquoLength Restrictionrdquo - per SPI 544-001 Part F
bull Contact Central Office for guidance
Note Define Crash Cushion with provided CADD cellhellipldquoSummary of Permanent Crash Cushions Tablerdquo
Guardrail Index 536-001 Crash Cushion Index 544-001
Approach Terminals Solution 1lsquoCrash Cushionrsquobull Guardrail ldquoreduced
post spacingrdquo to reduce required hazard setback per FDM Table 21542
bull Again contact Central Office for guidance for such limited space
Concrete Barrier Index 521-001 Crash Cushion 544-001
Approach Terminals Solution 2lsquoConcrete Barrierrsquo amp lsquoCrash Cushionrsquo
bull Requires project-specific design
bull Contact Central Office for guidance for such limited space
Questions
Richard Stepp PEStandard Plans Engineer
Central Office Roadway Design(850) 414-4313
richardsteppdotstateflus
Standard Plans Single-Slope Barriers
Roadside Barriers - Lessons Learned
1 GUARDRAIL Standard Plans Index 536-001
2 CONCRETE BARRIER Standard Plans Index 521-001
3 PIER PROTECTION BARRIER Standard Plans Index 521-002
Roadside Barriers - Lessons Learned
Design is generally governed by
1 FDOT Design Manual (FDM)httpswwwfdotgovroadwayfdmdefaultshtm
Roadside Barriers - Lessons Learned
Design is generally governed by
2 FDOT Standard Planshttpswwwfdotgovdesignstandardplans
Roadside Barriers - Lessons Learned
Design is generally governed by
3 Standard Plans Instructionshttpswwwfdotgovdesignstandardplans
Roadside Barriers - Lessons Learned
Design is generally governed by
4 Standard Specificationshttpswwwfdotgovprogrammanagement
implementedspecbooksdefaultshtm
Grading Any issues here
Guardrail Index 536-001
Answerhellip
YES
bull Front slope looks too steep
bull Slope break likely too close to post
Photo Credit Bill Fitzgerald PEKLS Engineering LLC
Grading lsquoStandard Postrsquo Requirements
Guardrail Index 536-001 Sheet 6
bull Front slope must be 12 or flatter
bull Slope break must be 2 feet behind postUnless
Grading lsquoDeep Postrsquo Requirements
Guardrail Index 536-001 Sheet 6
bull If lsquoDeep Postrsquo is called for slope break may be located at Center Line of post
bull STILL Front slope must be 12 or flatterNote Unique Pay Item 536-7-1
Guardrail Index 536-001
Shoulder Widens Any issue here
Answerhellip YESbull ldquoTaper Raterdquo requirement is violatedbull Per Standard Plans Instructions (SPI) Part I
bull Design Speed le 45 mph requires 110 Maxbull Design Speed gt 45mph requires 115 Max
Single Face to Double Face Any Issue
Guardrail Index 536-001 Sheet 9
Answerhellip
YES
bull ldquoTrailing Anchoragerdquo Standard is not used here (not detailed this way)
Index 536-001 does not show this as a Trailing Anchorage scenario and the details are not compatible or required
Single Face to Double Face Solution
Guardrail Index 536-001
Call for a Standard ldquoFlared End Unitrdquo (included with General Guardrail Pay Item) More guidance provided in next yearrsquos eBook
bull No ldquoTrailing Anchoragerdquo
bull Just call out Begin and End of guardrail types (on face closest to traveled way)
CRT System (Radial) Any issue here
Guardrail Index 536-001 Sheets 11 amp 12
AnswerhellipYES
First IssueObstruction is in the ldquoClear Area Limitrdquo per Standard Plans
(Controlled Release Terminal)
Guardrail Index 536-001 Sheets 11 amp 12
CRT System (Radial)AnswerhellipYES
First IssueObstruction is in the ldquoClear Area Limitrdquo per Standard Plans
Photo Credit Bill Fitzgerald PEKLS Engineering LLC
Guardrail Index 536-001 Sheets 11 amp 12
bull ldquoClear Areardquo Required (15rsquox30rsquo)
bull ldquoClear Areardquo is free of obstructions and has 12 Slope Max
CRT System (Radial) From Standard Planshellip
Guardrail Index 536-001 Sheets 11 amp 12
Requires 25-footlinear End TreatmentPer Standard Plans
(12rsquo-6rdquo Shown)
CRT System (Radial) Any other issue here
Guardrail Index 536-001 Sheets 11 amp 12
bull 25-foot linear End Treatment required
bull If this is not possible due limited space use a lsquovariationrsquo for General Radial Guardrail (Not CRT)(No breakaway posts)
CRT System (Radial) Per Standard Planshellip
Guardrail Index 536-001 Sheet 20
Pipe Rail Callouts Any issue hereAnswerhellip YES
Pipe Rail must terminate outside of End Treatments per SPI Part E and Standard PlansSolution
Guardrail Index 536-001 Sheets 13-15
Rigid Barrier Connections End Shielding
Guardrail Index 536-001 Sheets 13-15
Rigid Barrier Connection Any Issue HereAnswerhellip YES
asymp13 foot overlap with barrier is no longer Standard
(Overlap now only 7frac14rdquo Since FY2017-18 Standards for newsingle-faced guardrail)
Guardrail Index 536-001 Sheets 13-15
Rigid Barrier Connection Any Issues HereYES
asymp13 foot overlap with barrier is no longer Standard
(Overlap now only 7frac14rdquo Since FY2017-18 Standards for newsingle-faced guardrail)
Guardrail Index 536-001 Sheets 13-15
Rigid Barrier Connection Any Issues Here
Solution
YES
asymp13 foot overlap with barrier is no longer Standard
(Overlap now only 7frac14rdquo Since FY2017-18 Standards for newsingle-faced guardrail)
Guardrail Index 536-001 Sheets 7-8 13-14
Answerhellip
YES
Guardrail system ishellip
not long enough
Rigid Barrier Connection Any issue here
Minimum Length is Length of Approach Transition Connection lsquoLArsquoplus Length of End Treatment lsquoLErsquo
Guardrail Index 536-001 Sheets 7-8 13-14
Rigid Barrier End Shielding Min Length TL-2
lsquoLArsquo 213rsquo
+lsquoLErsquo 406rsquo
=
62rsquo
Guardrail Index 536-001 Sheets 7-8 13-14
Rigid Barrier End Shielding Min Length TL-2
lsquoLArsquo 213rsquo
+lsquoLErsquo 406rsquo
=
62rsquo
Guardrail Index 536-001 Sheets 7-8 13-14
Rigid Barrier End Shielding Min Length TL-3
lsquoLArsquo 306rsquo
+lsquoLErsquo 531rsquo
=
84rsquo
Guardrail Index 536-001 Sheets 7-8 13-14
Rigid Barrier End Shielding Min Length TL-3
lsquoLArsquo 306rsquo
+lsquoLErsquo 531rsquo
=
84rsquoNOTE If these lengths are not possible due to limited space consider the use of a Crash Cushion or a project-specific lsquovariationrsquo to fit the best barrier system possible
Contact Central Office for assistance
Guardrail Index 536-001 Sheets 7-8
Approach Terminals
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Any issues hereAnswerhellip YES
1 Flared terminals not permitted per RDB18-02
2 Curbed conditions require parallel Approach Terminals per Standard Plans ampSPI Part C3 Approach Terminals require lsquoType Ersquo Curb
Guardrail Index 536-001 Sheets 7-8
Approach Terminals
From Standard Planshellip
Answerhellip YES
1 Flared terminals not permitted per RDB18-02
2 Curbed conditions require parallel Approach Terminals per Standard Plans ampSPI Part C3 Approach Terminals require lsquoType Ersquo Curb
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Solution
1 Flared terminals not permitted per RDB18-02
2 Curbed conditions require parallel Approach Terminals per Standard Plans
3 Approach Terminals require lsquoType Ersquo Curb
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Any issues hereYES Wrong
First issuehellipFront slope break should be 6 feet behind guardrail face at post 1 per the Standards (110 Max)
Second issuehellipMisc Asphalt should extend 10 feet upstream of post 1 per Standards
Answerhellip
Guardrail Index 536-001 Sheets 7-8
Approach TerminalsYES Wrong
First issuehellipFront slope break should be 6 feet behind guardrail face at post 1 per the Standards (110 Min)
Second issuehellipMisc Asphalt should extend 10 feet upstream of post 1 per Standards
Answerhellip
From Standard Planshellip
Guardrail Index 536-001 Sheets 7-8
Approach TerminalsYES Wrong
First issuehellipFront slope break should be 6 feet behind guardrail face at post 1 per the Standards (110 Min)
Second issuehellipMisc Asphalt should extend 10 feet upstream of post 1 per Standards
Answerhellip
Example of Poor Slope Break Location (and steep slope not shielded)
Photo Credit Bill Fitzgerald PE
Guardrail Index 536-001 Sheets 7-8
Approach TerminalsYES Wrong
First issuehellipFront slope break should be 6 feet behind guardrail face at post 1 per the Standards (110 Min)
Second issuehellipMisc Asphalt should extend 10 feet upstream of post 1 per Standards
Answerhellip
Example of Poor Grading (The reason for Misc Asphalt requirement)
Photo Credit Bill Fitzgerald PE
Guardrail Index 536-001 Sheets 7-8
Approach Terminals SolutionYES Wrong
First issuehellipFront slope break should be 6 feet behind guardrail face at post 1 per the Standards (110 Min)
Second issuehellipMisc Asphalt should extend 10 feet upstream of post 1 per Standards
Answerhellip
Correctedhellip
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Any issues hereYES Wrong
First issuehellipTrees are within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
Second issuehellipTree violates barrier setback per FDM Table 21542
Answerhellip
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Any issues hereYES Wrong
First issuehellipTrees are within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
Second issuehellipTree violates barrier setback per FDM Table 21542
Answerhellip
Guardrail Index 536-001 Sheets 7-8
Approach TerminalsYES Wrong
First issuehellipTrees are within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
From Standard Planshellip
Guardrail Index 536-001 Sheets 7-8
Approach Terminals
CREDIT VIRGINIA DOT ndash SKT Crash Test Published October 2016
httpswwwyoutubecomwatchv=OsKlfatcjogampfeature=youtube
httpswwwyoutubecomwatchv=h7tct7Oo9-8ampfeature=youtube
YES Wrong
First issuehellipTrees are within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
Guardrail Index 536-001 Sheets 7-8
Approach Terminals
CREDIT VIRGINIA DOT ndash SKT Crash Test Published October 2016
httpswwwyoutubecomwatchv=74ImLTY-PhUampfeature=youtube
YES Wrong
First issuehellipTrees are within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
Guardrail Index 536-001 Sheets 7-8
Approach TerminalsYES Wrong
First issuehellipTrees are within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
From Standard Planshellip
Guardrail Index 536-001
YES Wrong
Second issuehellipTree violates barrier setback per FDM Table 21542
Guardrail Index 536-001
YES Wrong
Second issuehellipTree violates barrier setback per FDM Table 21542
From FDMhellip
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Any issue hereYES Wrong
First issuehellipPerpendicular guardrail is not proven crashworthybull No end treatmentsbull Violates ldquotaper raterdquo
requirements of SPI Part I (big time)
bull Requires shielding if within Clear Zone
Answerhellip
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Any issue hereYES Wrong
Second issuehellipPerpendicular guardrail within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Any issue hereYES Wrong
Third issuehellipPerpendicular guardrail violates barrier setback per FDM Table 21542
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Solution 1
REMOVE theperpendicularGuardrail
Orhellip
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Solution 2
1 Extend Guardrail to meet Length of Need per SPI Part B (Excel lsquoDesign Toolrsquo) which is Roadside Design Guide Eq 5-3
2 Meet minimum barrier setback per FDM Table 21542 (5 feet for general guardrail)
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Final Case StudyAssumptionsbull Design Speed
50 mph
bull Piers designed to withstand 600 kip impact load per FDM215454(Pier Protection Barrier notRequired)
Guardrail Index 536-001
Approach Terminals Any issue hereAnswerhellip YES
First issuehellipPiers NOT shielded
ldquoLength of Needrdquo NOT met per SPI Part B (Excel Design Tool)
Guardrail Index 536-001
Approach Terminals Any issue hereAnswerhellip YES
First issuehellipPiers NOT shielded
ldquoLength of Needrdquo NOT met per SPI Part B (Excel Design Tool)
Piers are behind the ldquogatingrdquo(break-away) portion of Approach Terminal
Guardrail Index 536-001
Approach Terminals Any issue hereYES
Second issuehellipFlared Terminal usage on hold per RDB18-02
Regardlesshellip ldquoTaper Raterdquo too steep here at Approach Terminal (about 13 shown)
Guardrail requires 115 Max Taper Rate per SPI Part I
Guardrail Index 536-001
Approach Terminals Any issue hereAnswerhellip YES
Third issuehellipldquoBarrier Setbackrdquo requirement likely not satisfied
per FDM Table 21542(5 feet or greater)hellip
Guardrail Index 536-001
Approach Terminals Any issue hereYES
Fourth issuehellipldquoTrailing Anchoragerdquo not properly extended downstream of hazard
25-foot Requirement SPI C1 amp lsquoLONrsquo Design Tool (Excel)hellip
Answerhellip
Guardrail Index 536-001
Approach Terminals Any issue hereYES
Fourth issuehellipldquoTrailing Anchoragerdquo not properly extended downstream of hazard
25-foot Requirement SPI C1 amp lsquoLONrsquo Design Tool (Excel)hellip
AnswerhellipFrom lsquoLength of Needrsquo Excel Sheethellip
Guardrail Index 536-001 Crash Cushion Index 544-001
Approach Terminals Solution 1lsquoCrash Cushionrsquobull ldquoSystem Widthrdquo ndash
lsquoWidersquo per SPI 544-001 Part C
bull ldquoLength Restrictionrdquo - per SPI 544-001 Part F
bull Contact Central Office for guidance
Note Define Crash Cushion with provided CADD cellhellipldquoSummary of Permanent Crash Cushions Tablerdquo
Guardrail Index 536-001 Crash Cushion Index 544-001
Approach Terminals Solution 1lsquoCrash Cushionrsquobull Guardrail ldquoreduced
post spacingrdquo to reduce required hazard setback per FDM Table 21542
bull Again contact Central Office for guidance for such limited space
Concrete Barrier Index 521-001 Crash Cushion 544-001
Approach Terminals Solution 2lsquoConcrete Barrierrsquo amp lsquoCrash Cushionrsquo
bull Requires project-specific design
bull Contact Central Office for guidance for such limited space
Questions
Richard Stepp PEStandard Plans Engineer
Central Office Roadway Design(850) 414-4313
richardsteppdotstateflus
Standard Plans Single-Slope Barriers
Roadside Barriers - Lessons Learned
Design is generally governed by
1 FDOT Design Manual (FDM)httpswwwfdotgovroadwayfdmdefaultshtm
Roadside Barriers - Lessons Learned
Design is generally governed by
2 FDOT Standard Planshttpswwwfdotgovdesignstandardplans
Roadside Barriers - Lessons Learned
Design is generally governed by
3 Standard Plans Instructionshttpswwwfdotgovdesignstandardplans
Roadside Barriers - Lessons Learned
Design is generally governed by
4 Standard Specificationshttpswwwfdotgovprogrammanagement
implementedspecbooksdefaultshtm
Grading Any issues here
Guardrail Index 536-001
Answerhellip
YES
bull Front slope looks too steep
bull Slope break likely too close to post
Photo Credit Bill Fitzgerald PEKLS Engineering LLC
Grading lsquoStandard Postrsquo Requirements
Guardrail Index 536-001 Sheet 6
bull Front slope must be 12 or flatter
bull Slope break must be 2 feet behind postUnless
Grading lsquoDeep Postrsquo Requirements
Guardrail Index 536-001 Sheet 6
bull If lsquoDeep Postrsquo is called for slope break may be located at Center Line of post
bull STILL Front slope must be 12 or flatterNote Unique Pay Item 536-7-1
Guardrail Index 536-001
Shoulder Widens Any issue here
Answerhellip YESbull ldquoTaper Raterdquo requirement is violatedbull Per Standard Plans Instructions (SPI) Part I
bull Design Speed le 45 mph requires 110 Maxbull Design Speed gt 45mph requires 115 Max
Single Face to Double Face Any Issue
Guardrail Index 536-001 Sheet 9
Answerhellip
YES
bull ldquoTrailing Anchoragerdquo Standard is not used here (not detailed this way)
Index 536-001 does not show this as a Trailing Anchorage scenario and the details are not compatible or required
Single Face to Double Face Solution
Guardrail Index 536-001
Call for a Standard ldquoFlared End Unitrdquo (included with General Guardrail Pay Item) More guidance provided in next yearrsquos eBook
bull No ldquoTrailing Anchoragerdquo
bull Just call out Begin and End of guardrail types (on face closest to traveled way)
CRT System (Radial) Any issue here
Guardrail Index 536-001 Sheets 11 amp 12
AnswerhellipYES
First IssueObstruction is in the ldquoClear Area Limitrdquo per Standard Plans
(Controlled Release Terminal)
Guardrail Index 536-001 Sheets 11 amp 12
CRT System (Radial)AnswerhellipYES
First IssueObstruction is in the ldquoClear Area Limitrdquo per Standard Plans
Photo Credit Bill Fitzgerald PEKLS Engineering LLC
Guardrail Index 536-001 Sheets 11 amp 12
bull ldquoClear Areardquo Required (15rsquox30rsquo)
bull ldquoClear Areardquo is free of obstructions and has 12 Slope Max
CRT System (Radial) From Standard Planshellip
Guardrail Index 536-001 Sheets 11 amp 12
Requires 25-footlinear End TreatmentPer Standard Plans
(12rsquo-6rdquo Shown)
CRT System (Radial) Any other issue here
Guardrail Index 536-001 Sheets 11 amp 12
bull 25-foot linear End Treatment required
bull If this is not possible due limited space use a lsquovariationrsquo for General Radial Guardrail (Not CRT)(No breakaway posts)
CRT System (Radial) Per Standard Planshellip
Guardrail Index 536-001 Sheet 20
Pipe Rail Callouts Any issue hereAnswerhellip YES
Pipe Rail must terminate outside of End Treatments per SPI Part E and Standard PlansSolution
Guardrail Index 536-001 Sheets 13-15
Rigid Barrier Connections End Shielding
Guardrail Index 536-001 Sheets 13-15
Rigid Barrier Connection Any Issue HereAnswerhellip YES
asymp13 foot overlap with barrier is no longer Standard
(Overlap now only 7frac14rdquo Since FY2017-18 Standards for newsingle-faced guardrail)
Guardrail Index 536-001 Sheets 13-15
Rigid Barrier Connection Any Issues HereYES
asymp13 foot overlap with barrier is no longer Standard
(Overlap now only 7frac14rdquo Since FY2017-18 Standards for newsingle-faced guardrail)
Guardrail Index 536-001 Sheets 13-15
Rigid Barrier Connection Any Issues Here
Solution
YES
asymp13 foot overlap with barrier is no longer Standard
(Overlap now only 7frac14rdquo Since FY2017-18 Standards for newsingle-faced guardrail)
Guardrail Index 536-001 Sheets 7-8 13-14
Answerhellip
YES
Guardrail system ishellip
not long enough
Rigid Barrier Connection Any issue here
Minimum Length is Length of Approach Transition Connection lsquoLArsquoplus Length of End Treatment lsquoLErsquo
Guardrail Index 536-001 Sheets 7-8 13-14
Rigid Barrier End Shielding Min Length TL-2
lsquoLArsquo 213rsquo
+lsquoLErsquo 406rsquo
=
62rsquo
Guardrail Index 536-001 Sheets 7-8 13-14
Rigid Barrier End Shielding Min Length TL-2
lsquoLArsquo 213rsquo
+lsquoLErsquo 406rsquo
=
62rsquo
Guardrail Index 536-001 Sheets 7-8 13-14
Rigid Barrier End Shielding Min Length TL-3
lsquoLArsquo 306rsquo
+lsquoLErsquo 531rsquo
=
84rsquo
Guardrail Index 536-001 Sheets 7-8 13-14
Rigid Barrier End Shielding Min Length TL-3
lsquoLArsquo 306rsquo
+lsquoLErsquo 531rsquo
=
84rsquoNOTE If these lengths are not possible due to limited space consider the use of a Crash Cushion or a project-specific lsquovariationrsquo to fit the best barrier system possible
Contact Central Office for assistance
Guardrail Index 536-001 Sheets 7-8
Approach Terminals
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Any issues hereAnswerhellip YES
1 Flared terminals not permitted per RDB18-02
2 Curbed conditions require parallel Approach Terminals per Standard Plans ampSPI Part C3 Approach Terminals require lsquoType Ersquo Curb
Guardrail Index 536-001 Sheets 7-8
Approach Terminals
From Standard Planshellip
Answerhellip YES
1 Flared terminals not permitted per RDB18-02
2 Curbed conditions require parallel Approach Terminals per Standard Plans ampSPI Part C3 Approach Terminals require lsquoType Ersquo Curb
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Solution
1 Flared terminals not permitted per RDB18-02
2 Curbed conditions require parallel Approach Terminals per Standard Plans
3 Approach Terminals require lsquoType Ersquo Curb
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Any issues hereYES Wrong
First issuehellipFront slope break should be 6 feet behind guardrail face at post 1 per the Standards (110 Max)
Second issuehellipMisc Asphalt should extend 10 feet upstream of post 1 per Standards
Answerhellip
Guardrail Index 536-001 Sheets 7-8
Approach TerminalsYES Wrong
First issuehellipFront slope break should be 6 feet behind guardrail face at post 1 per the Standards (110 Min)
Second issuehellipMisc Asphalt should extend 10 feet upstream of post 1 per Standards
Answerhellip
From Standard Planshellip
Guardrail Index 536-001 Sheets 7-8
Approach TerminalsYES Wrong
First issuehellipFront slope break should be 6 feet behind guardrail face at post 1 per the Standards (110 Min)
Second issuehellipMisc Asphalt should extend 10 feet upstream of post 1 per Standards
Answerhellip
Example of Poor Slope Break Location (and steep slope not shielded)
Photo Credit Bill Fitzgerald PE
Guardrail Index 536-001 Sheets 7-8
Approach TerminalsYES Wrong
First issuehellipFront slope break should be 6 feet behind guardrail face at post 1 per the Standards (110 Min)
Second issuehellipMisc Asphalt should extend 10 feet upstream of post 1 per Standards
Answerhellip
Example of Poor Grading (The reason for Misc Asphalt requirement)
Photo Credit Bill Fitzgerald PE
Guardrail Index 536-001 Sheets 7-8
Approach Terminals SolutionYES Wrong
First issuehellipFront slope break should be 6 feet behind guardrail face at post 1 per the Standards (110 Min)
Second issuehellipMisc Asphalt should extend 10 feet upstream of post 1 per Standards
Answerhellip
Correctedhellip
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Any issues hereYES Wrong
First issuehellipTrees are within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
Second issuehellipTree violates barrier setback per FDM Table 21542
Answerhellip
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Any issues hereYES Wrong
First issuehellipTrees are within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
Second issuehellipTree violates barrier setback per FDM Table 21542
Answerhellip
Guardrail Index 536-001 Sheets 7-8
Approach TerminalsYES Wrong
First issuehellipTrees are within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
From Standard Planshellip
Guardrail Index 536-001 Sheets 7-8
Approach Terminals
CREDIT VIRGINIA DOT ndash SKT Crash Test Published October 2016
httpswwwyoutubecomwatchv=OsKlfatcjogampfeature=youtube
httpswwwyoutubecomwatchv=h7tct7Oo9-8ampfeature=youtube
YES Wrong
First issuehellipTrees are within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
Guardrail Index 536-001 Sheets 7-8
Approach Terminals
CREDIT VIRGINIA DOT ndash SKT Crash Test Published October 2016
httpswwwyoutubecomwatchv=74ImLTY-PhUampfeature=youtube
YES Wrong
First issuehellipTrees are within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
Guardrail Index 536-001 Sheets 7-8
Approach TerminalsYES Wrong
First issuehellipTrees are within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
From Standard Planshellip
Guardrail Index 536-001
YES Wrong
Second issuehellipTree violates barrier setback per FDM Table 21542
Guardrail Index 536-001
YES Wrong
Second issuehellipTree violates barrier setback per FDM Table 21542
From FDMhellip
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Any issue hereYES Wrong
First issuehellipPerpendicular guardrail is not proven crashworthybull No end treatmentsbull Violates ldquotaper raterdquo
requirements of SPI Part I (big time)
bull Requires shielding if within Clear Zone
Answerhellip
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Any issue hereYES Wrong
Second issuehellipPerpendicular guardrail within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Any issue hereYES Wrong
Third issuehellipPerpendicular guardrail violates barrier setback per FDM Table 21542
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Solution 1
REMOVE theperpendicularGuardrail
Orhellip
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Solution 2
1 Extend Guardrail to meet Length of Need per SPI Part B (Excel lsquoDesign Toolrsquo) which is Roadside Design Guide Eq 5-3
2 Meet minimum barrier setback per FDM Table 21542 (5 feet for general guardrail)
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Final Case StudyAssumptionsbull Design Speed
50 mph
bull Piers designed to withstand 600 kip impact load per FDM215454(Pier Protection Barrier notRequired)
Guardrail Index 536-001
Approach Terminals Any issue hereAnswerhellip YES
First issuehellipPiers NOT shielded
ldquoLength of Needrdquo NOT met per SPI Part B (Excel Design Tool)
Guardrail Index 536-001
Approach Terminals Any issue hereAnswerhellip YES
First issuehellipPiers NOT shielded
ldquoLength of Needrdquo NOT met per SPI Part B (Excel Design Tool)
Piers are behind the ldquogatingrdquo(break-away) portion of Approach Terminal
Guardrail Index 536-001
Approach Terminals Any issue hereYES
Second issuehellipFlared Terminal usage on hold per RDB18-02
Regardlesshellip ldquoTaper Raterdquo too steep here at Approach Terminal (about 13 shown)
Guardrail requires 115 Max Taper Rate per SPI Part I
Guardrail Index 536-001
Approach Terminals Any issue hereAnswerhellip YES
Third issuehellipldquoBarrier Setbackrdquo requirement likely not satisfied
per FDM Table 21542(5 feet or greater)hellip
Guardrail Index 536-001
Approach Terminals Any issue hereYES
Fourth issuehellipldquoTrailing Anchoragerdquo not properly extended downstream of hazard
25-foot Requirement SPI C1 amp lsquoLONrsquo Design Tool (Excel)hellip
Answerhellip
Guardrail Index 536-001
Approach Terminals Any issue hereYES
Fourth issuehellipldquoTrailing Anchoragerdquo not properly extended downstream of hazard
25-foot Requirement SPI C1 amp lsquoLONrsquo Design Tool (Excel)hellip
AnswerhellipFrom lsquoLength of Needrsquo Excel Sheethellip
Guardrail Index 536-001 Crash Cushion Index 544-001
Approach Terminals Solution 1lsquoCrash Cushionrsquobull ldquoSystem Widthrdquo ndash
lsquoWidersquo per SPI 544-001 Part C
bull ldquoLength Restrictionrdquo - per SPI 544-001 Part F
bull Contact Central Office for guidance
Note Define Crash Cushion with provided CADD cellhellipldquoSummary of Permanent Crash Cushions Tablerdquo
Guardrail Index 536-001 Crash Cushion Index 544-001
Approach Terminals Solution 1lsquoCrash Cushionrsquobull Guardrail ldquoreduced
post spacingrdquo to reduce required hazard setback per FDM Table 21542
bull Again contact Central Office for guidance for such limited space
Concrete Barrier Index 521-001 Crash Cushion 544-001
Approach Terminals Solution 2lsquoConcrete Barrierrsquo amp lsquoCrash Cushionrsquo
bull Requires project-specific design
bull Contact Central Office for guidance for such limited space
Questions
Richard Stepp PEStandard Plans Engineer
Central Office Roadway Design(850) 414-4313
richardsteppdotstateflus
Standard Plans Single-Slope Barriers
Roadside Barriers - Lessons Learned
Design is generally governed by
2 FDOT Standard Planshttpswwwfdotgovdesignstandardplans
Roadside Barriers - Lessons Learned
Design is generally governed by
3 Standard Plans Instructionshttpswwwfdotgovdesignstandardplans
Roadside Barriers - Lessons Learned
Design is generally governed by
4 Standard Specificationshttpswwwfdotgovprogrammanagement
implementedspecbooksdefaultshtm
Grading Any issues here
Guardrail Index 536-001
Answerhellip
YES
bull Front slope looks too steep
bull Slope break likely too close to post
Photo Credit Bill Fitzgerald PEKLS Engineering LLC
Grading lsquoStandard Postrsquo Requirements
Guardrail Index 536-001 Sheet 6
bull Front slope must be 12 or flatter
bull Slope break must be 2 feet behind postUnless
Grading lsquoDeep Postrsquo Requirements
Guardrail Index 536-001 Sheet 6
bull If lsquoDeep Postrsquo is called for slope break may be located at Center Line of post
bull STILL Front slope must be 12 or flatterNote Unique Pay Item 536-7-1
Guardrail Index 536-001
Shoulder Widens Any issue here
Answerhellip YESbull ldquoTaper Raterdquo requirement is violatedbull Per Standard Plans Instructions (SPI) Part I
bull Design Speed le 45 mph requires 110 Maxbull Design Speed gt 45mph requires 115 Max
Single Face to Double Face Any Issue
Guardrail Index 536-001 Sheet 9
Answerhellip
YES
bull ldquoTrailing Anchoragerdquo Standard is not used here (not detailed this way)
Index 536-001 does not show this as a Trailing Anchorage scenario and the details are not compatible or required
Single Face to Double Face Solution
Guardrail Index 536-001
Call for a Standard ldquoFlared End Unitrdquo (included with General Guardrail Pay Item) More guidance provided in next yearrsquos eBook
bull No ldquoTrailing Anchoragerdquo
bull Just call out Begin and End of guardrail types (on face closest to traveled way)
CRT System (Radial) Any issue here
Guardrail Index 536-001 Sheets 11 amp 12
AnswerhellipYES
First IssueObstruction is in the ldquoClear Area Limitrdquo per Standard Plans
(Controlled Release Terminal)
Guardrail Index 536-001 Sheets 11 amp 12
CRT System (Radial)AnswerhellipYES
First IssueObstruction is in the ldquoClear Area Limitrdquo per Standard Plans
Photo Credit Bill Fitzgerald PEKLS Engineering LLC
Guardrail Index 536-001 Sheets 11 amp 12
bull ldquoClear Areardquo Required (15rsquox30rsquo)
bull ldquoClear Areardquo is free of obstructions and has 12 Slope Max
CRT System (Radial) From Standard Planshellip
Guardrail Index 536-001 Sheets 11 amp 12
Requires 25-footlinear End TreatmentPer Standard Plans
(12rsquo-6rdquo Shown)
CRT System (Radial) Any other issue here
Guardrail Index 536-001 Sheets 11 amp 12
bull 25-foot linear End Treatment required
bull If this is not possible due limited space use a lsquovariationrsquo for General Radial Guardrail (Not CRT)(No breakaway posts)
CRT System (Radial) Per Standard Planshellip
Guardrail Index 536-001 Sheet 20
Pipe Rail Callouts Any issue hereAnswerhellip YES
Pipe Rail must terminate outside of End Treatments per SPI Part E and Standard PlansSolution
Guardrail Index 536-001 Sheets 13-15
Rigid Barrier Connections End Shielding
Guardrail Index 536-001 Sheets 13-15
Rigid Barrier Connection Any Issue HereAnswerhellip YES
asymp13 foot overlap with barrier is no longer Standard
(Overlap now only 7frac14rdquo Since FY2017-18 Standards for newsingle-faced guardrail)
Guardrail Index 536-001 Sheets 13-15
Rigid Barrier Connection Any Issues HereYES
asymp13 foot overlap with barrier is no longer Standard
(Overlap now only 7frac14rdquo Since FY2017-18 Standards for newsingle-faced guardrail)
Guardrail Index 536-001 Sheets 13-15
Rigid Barrier Connection Any Issues Here
Solution
YES
asymp13 foot overlap with barrier is no longer Standard
(Overlap now only 7frac14rdquo Since FY2017-18 Standards for newsingle-faced guardrail)
Guardrail Index 536-001 Sheets 7-8 13-14
Answerhellip
YES
Guardrail system ishellip
not long enough
Rigid Barrier Connection Any issue here
Minimum Length is Length of Approach Transition Connection lsquoLArsquoplus Length of End Treatment lsquoLErsquo
Guardrail Index 536-001 Sheets 7-8 13-14
Rigid Barrier End Shielding Min Length TL-2
lsquoLArsquo 213rsquo
+lsquoLErsquo 406rsquo
=
62rsquo
Guardrail Index 536-001 Sheets 7-8 13-14
Rigid Barrier End Shielding Min Length TL-2
lsquoLArsquo 213rsquo
+lsquoLErsquo 406rsquo
=
62rsquo
Guardrail Index 536-001 Sheets 7-8 13-14
Rigid Barrier End Shielding Min Length TL-3
lsquoLArsquo 306rsquo
+lsquoLErsquo 531rsquo
=
84rsquo
Guardrail Index 536-001 Sheets 7-8 13-14
Rigid Barrier End Shielding Min Length TL-3
lsquoLArsquo 306rsquo
+lsquoLErsquo 531rsquo
=
84rsquoNOTE If these lengths are not possible due to limited space consider the use of a Crash Cushion or a project-specific lsquovariationrsquo to fit the best barrier system possible
Contact Central Office for assistance
Guardrail Index 536-001 Sheets 7-8
Approach Terminals
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Any issues hereAnswerhellip YES
1 Flared terminals not permitted per RDB18-02
2 Curbed conditions require parallel Approach Terminals per Standard Plans ampSPI Part C3 Approach Terminals require lsquoType Ersquo Curb
Guardrail Index 536-001 Sheets 7-8
Approach Terminals
From Standard Planshellip
Answerhellip YES
1 Flared terminals not permitted per RDB18-02
2 Curbed conditions require parallel Approach Terminals per Standard Plans ampSPI Part C3 Approach Terminals require lsquoType Ersquo Curb
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Solution
1 Flared terminals not permitted per RDB18-02
2 Curbed conditions require parallel Approach Terminals per Standard Plans
3 Approach Terminals require lsquoType Ersquo Curb
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Any issues hereYES Wrong
First issuehellipFront slope break should be 6 feet behind guardrail face at post 1 per the Standards (110 Max)
Second issuehellipMisc Asphalt should extend 10 feet upstream of post 1 per Standards
Answerhellip
Guardrail Index 536-001 Sheets 7-8
Approach TerminalsYES Wrong
First issuehellipFront slope break should be 6 feet behind guardrail face at post 1 per the Standards (110 Min)
Second issuehellipMisc Asphalt should extend 10 feet upstream of post 1 per Standards
Answerhellip
From Standard Planshellip
Guardrail Index 536-001 Sheets 7-8
Approach TerminalsYES Wrong
First issuehellipFront slope break should be 6 feet behind guardrail face at post 1 per the Standards (110 Min)
Second issuehellipMisc Asphalt should extend 10 feet upstream of post 1 per Standards
Answerhellip
Example of Poor Slope Break Location (and steep slope not shielded)
Photo Credit Bill Fitzgerald PE
Guardrail Index 536-001 Sheets 7-8
Approach TerminalsYES Wrong
First issuehellipFront slope break should be 6 feet behind guardrail face at post 1 per the Standards (110 Min)
Second issuehellipMisc Asphalt should extend 10 feet upstream of post 1 per Standards
Answerhellip
Example of Poor Grading (The reason for Misc Asphalt requirement)
Photo Credit Bill Fitzgerald PE
Guardrail Index 536-001 Sheets 7-8
Approach Terminals SolutionYES Wrong
First issuehellipFront slope break should be 6 feet behind guardrail face at post 1 per the Standards (110 Min)
Second issuehellipMisc Asphalt should extend 10 feet upstream of post 1 per Standards
Answerhellip
Correctedhellip
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Any issues hereYES Wrong
First issuehellipTrees are within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
Second issuehellipTree violates barrier setback per FDM Table 21542
Answerhellip
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Any issues hereYES Wrong
First issuehellipTrees are within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
Second issuehellipTree violates barrier setback per FDM Table 21542
Answerhellip
Guardrail Index 536-001 Sheets 7-8
Approach TerminalsYES Wrong
First issuehellipTrees are within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
From Standard Planshellip
Guardrail Index 536-001 Sheets 7-8
Approach Terminals
CREDIT VIRGINIA DOT ndash SKT Crash Test Published October 2016
httpswwwyoutubecomwatchv=OsKlfatcjogampfeature=youtube
httpswwwyoutubecomwatchv=h7tct7Oo9-8ampfeature=youtube
YES Wrong
First issuehellipTrees are within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
Guardrail Index 536-001 Sheets 7-8
Approach Terminals
CREDIT VIRGINIA DOT ndash SKT Crash Test Published October 2016
httpswwwyoutubecomwatchv=74ImLTY-PhUampfeature=youtube
YES Wrong
First issuehellipTrees are within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
Guardrail Index 536-001 Sheets 7-8
Approach TerminalsYES Wrong
First issuehellipTrees are within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
From Standard Planshellip
Guardrail Index 536-001
YES Wrong
Second issuehellipTree violates barrier setback per FDM Table 21542
Guardrail Index 536-001
YES Wrong
Second issuehellipTree violates barrier setback per FDM Table 21542
From FDMhellip
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Any issue hereYES Wrong
First issuehellipPerpendicular guardrail is not proven crashworthybull No end treatmentsbull Violates ldquotaper raterdquo
requirements of SPI Part I (big time)
bull Requires shielding if within Clear Zone
Answerhellip
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Any issue hereYES Wrong
Second issuehellipPerpendicular guardrail within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Any issue hereYES Wrong
Third issuehellipPerpendicular guardrail violates barrier setback per FDM Table 21542
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Solution 1
REMOVE theperpendicularGuardrail
Orhellip
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Solution 2
1 Extend Guardrail to meet Length of Need per SPI Part B (Excel lsquoDesign Toolrsquo) which is Roadside Design Guide Eq 5-3
2 Meet minimum barrier setback per FDM Table 21542 (5 feet for general guardrail)
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Final Case StudyAssumptionsbull Design Speed
50 mph
bull Piers designed to withstand 600 kip impact load per FDM215454(Pier Protection Barrier notRequired)
Guardrail Index 536-001
Approach Terminals Any issue hereAnswerhellip YES
First issuehellipPiers NOT shielded
ldquoLength of Needrdquo NOT met per SPI Part B (Excel Design Tool)
Guardrail Index 536-001
Approach Terminals Any issue hereAnswerhellip YES
First issuehellipPiers NOT shielded
ldquoLength of Needrdquo NOT met per SPI Part B (Excel Design Tool)
Piers are behind the ldquogatingrdquo(break-away) portion of Approach Terminal
Guardrail Index 536-001
Approach Terminals Any issue hereYES
Second issuehellipFlared Terminal usage on hold per RDB18-02
Regardlesshellip ldquoTaper Raterdquo too steep here at Approach Terminal (about 13 shown)
Guardrail requires 115 Max Taper Rate per SPI Part I
Guardrail Index 536-001
Approach Terminals Any issue hereAnswerhellip YES
Third issuehellipldquoBarrier Setbackrdquo requirement likely not satisfied
per FDM Table 21542(5 feet or greater)hellip
Guardrail Index 536-001
Approach Terminals Any issue hereYES
Fourth issuehellipldquoTrailing Anchoragerdquo not properly extended downstream of hazard
25-foot Requirement SPI C1 amp lsquoLONrsquo Design Tool (Excel)hellip
Answerhellip
Guardrail Index 536-001
Approach Terminals Any issue hereYES
Fourth issuehellipldquoTrailing Anchoragerdquo not properly extended downstream of hazard
25-foot Requirement SPI C1 amp lsquoLONrsquo Design Tool (Excel)hellip
AnswerhellipFrom lsquoLength of Needrsquo Excel Sheethellip
Guardrail Index 536-001 Crash Cushion Index 544-001
Approach Terminals Solution 1lsquoCrash Cushionrsquobull ldquoSystem Widthrdquo ndash
lsquoWidersquo per SPI 544-001 Part C
bull ldquoLength Restrictionrdquo - per SPI 544-001 Part F
bull Contact Central Office for guidance
Note Define Crash Cushion with provided CADD cellhellipldquoSummary of Permanent Crash Cushions Tablerdquo
Guardrail Index 536-001 Crash Cushion Index 544-001
Approach Terminals Solution 1lsquoCrash Cushionrsquobull Guardrail ldquoreduced
post spacingrdquo to reduce required hazard setback per FDM Table 21542
bull Again contact Central Office for guidance for such limited space
Concrete Barrier Index 521-001 Crash Cushion 544-001
Approach Terminals Solution 2lsquoConcrete Barrierrsquo amp lsquoCrash Cushionrsquo
bull Requires project-specific design
bull Contact Central Office for guidance for such limited space
Questions
Richard Stepp PEStandard Plans Engineer
Central Office Roadway Design(850) 414-4313
richardsteppdotstateflus
Standard Plans Single-Slope Barriers
Roadside Barriers - Lessons Learned
Design is generally governed by
3 Standard Plans Instructionshttpswwwfdotgovdesignstandardplans
Roadside Barriers - Lessons Learned
Design is generally governed by
4 Standard Specificationshttpswwwfdotgovprogrammanagement
implementedspecbooksdefaultshtm
Grading Any issues here
Guardrail Index 536-001
Answerhellip
YES
bull Front slope looks too steep
bull Slope break likely too close to post
Photo Credit Bill Fitzgerald PEKLS Engineering LLC
Grading lsquoStandard Postrsquo Requirements
Guardrail Index 536-001 Sheet 6
bull Front slope must be 12 or flatter
bull Slope break must be 2 feet behind postUnless
Grading lsquoDeep Postrsquo Requirements
Guardrail Index 536-001 Sheet 6
bull If lsquoDeep Postrsquo is called for slope break may be located at Center Line of post
bull STILL Front slope must be 12 or flatterNote Unique Pay Item 536-7-1
Guardrail Index 536-001
Shoulder Widens Any issue here
Answerhellip YESbull ldquoTaper Raterdquo requirement is violatedbull Per Standard Plans Instructions (SPI) Part I
bull Design Speed le 45 mph requires 110 Maxbull Design Speed gt 45mph requires 115 Max
Single Face to Double Face Any Issue
Guardrail Index 536-001 Sheet 9
Answerhellip
YES
bull ldquoTrailing Anchoragerdquo Standard is not used here (not detailed this way)
Index 536-001 does not show this as a Trailing Anchorage scenario and the details are not compatible or required
Single Face to Double Face Solution
Guardrail Index 536-001
Call for a Standard ldquoFlared End Unitrdquo (included with General Guardrail Pay Item) More guidance provided in next yearrsquos eBook
bull No ldquoTrailing Anchoragerdquo
bull Just call out Begin and End of guardrail types (on face closest to traveled way)
CRT System (Radial) Any issue here
Guardrail Index 536-001 Sheets 11 amp 12
AnswerhellipYES
First IssueObstruction is in the ldquoClear Area Limitrdquo per Standard Plans
(Controlled Release Terminal)
Guardrail Index 536-001 Sheets 11 amp 12
CRT System (Radial)AnswerhellipYES
First IssueObstruction is in the ldquoClear Area Limitrdquo per Standard Plans
Photo Credit Bill Fitzgerald PEKLS Engineering LLC
Guardrail Index 536-001 Sheets 11 amp 12
bull ldquoClear Areardquo Required (15rsquox30rsquo)
bull ldquoClear Areardquo is free of obstructions and has 12 Slope Max
CRT System (Radial) From Standard Planshellip
Guardrail Index 536-001 Sheets 11 amp 12
Requires 25-footlinear End TreatmentPer Standard Plans
(12rsquo-6rdquo Shown)
CRT System (Radial) Any other issue here
Guardrail Index 536-001 Sheets 11 amp 12
bull 25-foot linear End Treatment required
bull If this is not possible due limited space use a lsquovariationrsquo for General Radial Guardrail (Not CRT)(No breakaway posts)
CRT System (Radial) Per Standard Planshellip
Guardrail Index 536-001 Sheet 20
Pipe Rail Callouts Any issue hereAnswerhellip YES
Pipe Rail must terminate outside of End Treatments per SPI Part E and Standard PlansSolution
Guardrail Index 536-001 Sheets 13-15
Rigid Barrier Connections End Shielding
Guardrail Index 536-001 Sheets 13-15
Rigid Barrier Connection Any Issue HereAnswerhellip YES
asymp13 foot overlap with barrier is no longer Standard
(Overlap now only 7frac14rdquo Since FY2017-18 Standards for newsingle-faced guardrail)
Guardrail Index 536-001 Sheets 13-15
Rigid Barrier Connection Any Issues HereYES
asymp13 foot overlap with barrier is no longer Standard
(Overlap now only 7frac14rdquo Since FY2017-18 Standards for newsingle-faced guardrail)
Guardrail Index 536-001 Sheets 13-15
Rigid Barrier Connection Any Issues Here
Solution
YES
asymp13 foot overlap with barrier is no longer Standard
(Overlap now only 7frac14rdquo Since FY2017-18 Standards for newsingle-faced guardrail)
Guardrail Index 536-001 Sheets 7-8 13-14
Answerhellip
YES
Guardrail system ishellip
not long enough
Rigid Barrier Connection Any issue here
Minimum Length is Length of Approach Transition Connection lsquoLArsquoplus Length of End Treatment lsquoLErsquo
Guardrail Index 536-001 Sheets 7-8 13-14
Rigid Barrier End Shielding Min Length TL-2
lsquoLArsquo 213rsquo
+lsquoLErsquo 406rsquo
=
62rsquo
Guardrail Index 536-001 Sheets 7-8 13-14
Rigid Barrier End Shielding Min Length TL-2
lsquoLArsquo 213rsquo
+lsquoLErsquo 406rsquo
=
62rsquo
Guardrail Index 536-001 Sheets 7-8 13-14
Rigid Barrier End Shielding Min Length TL-3
lsquoLArsquo 306rsquo
+lsquoLErsquo 531rsquo
=
84rsquo
Guardrail Index 536-001 Sheets 7-8 13-14
Rigid Barrier End Shielding Min Length TL-3
lsquoLArsquo 306rsquo
+lsquoLErsquo 531rsquo
=
84rsquoNOTE If these lengths are not possible due to limited space consider the use of a Crash Cushion or a project-specific lsquovariationrsquo to fit the best barrier system possible
Contact Central Office for assistance
Guardrail Index 536-001 Sheets 7-8
Approach Terminals
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Any issues hereAnswerhellip YES
1 Flared terminals not permitted per RDB18-02
2 Curbed conditions require parallel Approach Terminals per Standard Plans ampSPI Part C3 Approach Terminals require lsquoType Ersquo Curb
Guardrail Index 536-001 Sheets 7-8
Approach Terminals
From Standard Planshellip
Answerhellip YES
1 Flared terminals not permitted per RDB18-02
2 Curbed conditions require parallel Approach Terminals per Standard Plans ampSPI Part C3 Approach Terminals require lsquoType Ersquo Curb
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Solution
1 Flared terminals not permitted per RDB18-02
2 Curbed conditions require parallel Approach Terminals per Standard Plans
3 Approach Terminals require lsquoType Ersquo Curb
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Any issues hereYES Wrong
First issuehellipFront slope break should be 6 feet behind guardrail face at post 1 per the Standards (110 Max)
Second issuehellipMisc Asphalt should extend 10 feet upstream of post 1 per Standards
Answerhellip
Guardrail Index 536-001 Sheets 7-8
Approach TerminalsYES Wrong
First issuehellipFront slope break should be 6 feet behind guardrail face at post 1 per the Standards (110 Min)
Second issuehellipMisc Asphalt should extend 10 feet upstream of post 1 per Standards
Answerhellip
From Standard Planshellip
Guardrail Index 536-001 Sheets 7-8
Approach TerminalsYES Wrong
First issuehellipFront slope break should be 6 feet behind guardrail face at post 1 per the Standards (110 Min)
Second issuehellipMisc Asphalt should extend 10 feet upstream of post 1 per Standards
Answerhellip
Example of Poor Slope Break Location (and steep slope not shielded)
Photo Credit Bill Fitzgerald PE
Guardrail Index 536-001 Sheets 7-8
Approach TerminalsYES Wrong
First issuehellipFront slope break should be 6 feet behind guardrail face at post 1 per the Standards (110 Min)
Second issuehellipMisc Asphalt should extend 10 feet upstream of post 1 per Standards
Answerhellip
Example of Poor Grading (The reason for Misc Asphalt requirement)
Photo Credit Bill Fitzgerald PE
Guardrail Index 536-001 Sheets 7-8
Approach Terminals SolutionYES Wrong
First issuehellipFront slope break should be 6 feet behind guardrail face at post 1 per the Standards (110 Min)
Second issuehellipMisc Asphalt should extend 10 feet upstream of post 1 per Standards
Answerhellip
Correctedhellip
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Any issues hereYES Wrong
First issuehellipTrees are within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
Second issuehellipTree violates barrier setback per FDM Table 21542
Answerhellip
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Any issues hereYES Wrong
First issuehellipTrees are within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
Second issuehellipTree violates barrier setback per FDM Table 21542
Answerhellip
Guardrail Index 536-001 Sheets 7-8
Approach TerminalsYES Wrong
First issuehellipTrees are within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
From Standard Planshellip
Guardrail Index 536-001 Sheets 7-8
Approach Terminals
CREDIT VIRGINIA DOT ndash SKT Crash Test Published October 2016
httpswwwyoutubecomwatchv=OsKlfatcjogampfeature=youtube
httpswwwyoutubecomwatchv=h7tct7Oo9-8ampfeature=youtube
YES Wrong
First issuehellipTrees are within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
Guardrail Index 536-001 Sheets 7-8
Approach Terminals
CREDIT VIRGINIA DOT ndash SKT Crash Test Published October 2016
httpswwwyoutubecomwatchv=74ImLTY-PhUampfeature=youtube
YES Wrong
First issuehellipTrees are within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
Guardrail Index 536-001 Sheets 7-8
Approach TerminalsYES Wrong
First issuehellipTrees are within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
From Standard Planshellip
Guardrail Index 536-001
YES Wrong
Second issuehellipTree violates barrier setback per FDM Table 21542
Guardrail Index 536-001
YES Wrong
Second issuehellipTree violates barrier setback per FDM Table 21542
From FDMhellip
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Any issue hereYES Wrong
First issuehellipPerpendicular guardrail is not proven crashworthybull No end treatmentsbull Violates ldquotaper raterdquo
requirements of SPI Part I (big time)
bull Requires shielding if within Clear Zone
Answerhellip
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Any issue hereYES Wrong
Second issuehellipPerpendicular guardrail within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Any issue hereYES Wrong
Third issuehellipPerpendicular guardrail violates barrier setback per FDM Table 21542
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Solution 1
REMOVE theperpendicularGuardrail
Orhellip
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Solution 2
1 Extend Guardrail to meet Length of Need per SPI Part B (Excel lsquoDesign Toolrsquo) which is Roadside Design Guide Eq 5-3
2 Meet minimum barrier setback per FDM Table 21542 (5 feet for general guardrail)
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Final Case StudyAssumptionsbull Design Speed
50 mph
bull Piers designed to withstand 600 kip impact load per FDM215454(Pier Protection Barrier notRequired)
Guardrail Index 536-001
Approach Terminals Any issue hereAnswerhellip YES
First issuehellipPiers NOT shielded
ldquoLength of Needrdquo NOT met per SPI Part B (Excel Design Tool)
Guardrail Index 536-001
Approach Terminals Any issue hereAnswerhellip YES
First issuehellipPiers NOT shielded
ldquoLength of Needrdquo NOT met per SPI Part B (Excel Design Tool)
Piers are behind the ldquogatingrdquo(break-away) portion of Approach Terminal
Guardrail Index 536-001
Approach Terminals Any issue hereYES
Second issuehellipFlared Terminal usage on hold per RDB18-02
Regardlesshellip ldquoTaper Raterdquo too steep here at Approach Terminal (about 13 shown)
Guardrail requires 115 Max Taper Rate per SPI Part I
Guardrail Index 536-001
Approach Terminals Any issue hereAnswerhellip YES
Third issuehellipldquoBarrier Setbackrdquo requirement likely not satisfied
per FDM Table 21542(5 feet or greater)hellip
Guardrail Index 536-001
Approach Terminals Any issue hereYES
Fourth issuehellipldquoTrailing Anchoragerdquo not properly extended downstream of hazard
25-foot Requirement SPI C1 amp lsquoLONrsquo Design Tool (Excel)hellip
Answerhellip
Guardrail Index 536-001
Approach Terminals Any issue hereYES
Fourth issuehellipldquoTrailing Anchoragerdquo not properly extended downstream of hazard
25-foot Requirement SPI C1 amp lsquoLONrsquo Design Tool (Excel)hellip
AnswerhellipFrom lsquoLength of Needrsquo Excel Sheethellip
Guardrail Index 536-001 Crash Cushion Index 544-001
Approach Terminals Solution 1lsquoCrash Cushionrsquobull ldquoSystem Widthrdquo ndash
lsquoWidersquo per SPI 544-001 Part C
bull ldquoLength Restrictionrdquo - per SPI 544-001 Part F
bull Contact Central Office for guidance
Note Define Crash Cushion with provided CADD cellhellipldquoSummary of Permanent Crash Cushions Tablerdquo
Guardrail Index 536-001 Crash Cushion Index 544-001
Approach Terminals Solution 1lsquoCrash Cushionrsquobull Guardrail ldquoreduced
post spacingrdquo to reduce required hazard setback per FDM Table 21542
bull Again contact Central Office for guidance for such limited space
Concrete Barrier Index 521-001 Crash Cushion 544-001
Approach Terminals Solution 2lsquoConcrete Barrierrsquo amp lsquoCrash Cushionrsquo
bull Requires project-specific design
bull Contact Central Office for guidance for such limited space
Questions
Richard Stepp PEStandard Plans Engineer
Central Office Roadway Design(850) 414-4313
richardsteppdotstateflus
Standard Plans Single-Slope Barriers
Roadside Barriers - Lessons Learned
Design is generally governed by
4 Standard Specificationshttpswwwfdotgovprogrammanagement
implementedspecbooksdefaultshtm
Grading Any issues here
Guardrail Index 536-001
Answerhellip
YES
bull Front slope looks too steep
bull Slope break likely too close to post
Photo Credit Bill Fitzgerald PEKLS Engineering LLC
Grading lsquoStandard Postrsquo Requirements
Guardrail Index 536-001 Sheet 6
bull Front slope must be 12 or flatter
bull Slope break must be 2 feet behind postUnless
Grading lsquoDeep Postrsquo Requirements
Guardrail Index 536-001 Sheet 6
bull If lsquoDeep Postrsquo is called for slope break may be located at Center Line of post
bull STILL Front slope must be 12 or flatterNote Unique Pay Item 536-7-1
Guardrail Index 536-001
Shoulder Widens Any issue here
Answerhellip YESbull ldquoTaper Raterdquo requirement is violatedbull Per Standard Plans Instructions (SPI) Part I
bull Design Speed le 45 mph requires 110 Maxbull Design Speed gt 45mph requires 115 Max
Single Face to Double Face Any Issue
Guardrail Index 536-001 Sheet 9
Answerhellip
YES
bull ldquoTrailing Anchoragerdquo Standard is not used here (not detailed this way)
Index 536-001 does not show this as a Trailing Anchorage scenario and the details are not compatible or required
Single Face to Double Face Solution
Guardrail Index 536-001
Call for a Standard ldquoFlared End Unitrdquo (included with General Guardrail Pay Item) More guidance provided in next yearrsquos eBook
bull No ldquoTrailing Anchoragerdquo
bull Just call out Begin and End of guardrail types (on face closest to traveled way)
CRT System (Radial) Any issue here
Guardrail Index 536-001 Sheets 11 amp 12
AnswerhellipYES
First IssueObstruction is in the ldquoClear Area Limitrdquo per Standard Plans
(Controlled Release Terminal)
Guardrail Index 536-001 Sheets 11 amp 12
CRT System (Radial)AnswerhellipYES
First IssueObstruction is in the ldquoClear Area Limitrdquo per Standard Plans
Photo Credit Bill Fitzgerald PEKLS Engineering LLC
Guardrail Index 536-001 Sheets 11 amp 12
bull ldquoClear Areardquo Required (15rsquox30rsquo)
bull ldquoClear Areardquo is free of obstructions and has 12 Slope Max
CRT System (Radial) From Standard Planshellip
Guardrail Index 536-001 Sheets 11 amp 12
Requires 25-footlinear End TreatmentPer Standard Plans
(12rsquo-6rdquo Shown)
CRT System (Radial) Any other issue here
Guardrail Index 536-001 Sheets 11 amp 12
bull 25-foot linear End Treatment required
bull If this is not possible due limited space use a lsquovariationrsquo for General Radial Guardrail (Not CRT)(No breakaway posts)
CRT System (Radial) Per Standard Planshellip
Guardrail Index 536-001 Sheet 20
Pipe Rail Callouts Any issue hereAnswerhellip YES
Pipe Rail must terminate outside of End Treatments per SPI Part E and Standard PlansSolution
Guardrail Index 536-001 Sheets 13-15
Rigid Barrier Connections End Shielding
Guardrail Index 536-001 Sheets 13-15
Rigid Barrier Connection Any Issue HereAnswerhellip YES
asymp13 foot overlap with barrier is no longer Standard
(Overlap now only 7frac14rdquo Since FY2017-18 Standards for newsingle-faced guardrail)
Guardrail Index 536-001 Sheets 13-15
Rigid Barrier Connection Any Issues HereYES
asymp13 foot overlap with barrier is no longer Standard
(Overlap now only 7frac14rdquo Since FY2017-18 Standards for newsingle-faced guardrail)
Guardrail Index 536-001 Sheets 13-15
Rigid Barrier Connection Any Issues Here
Solution
YES
asymp13 foot overlap with barrier is no longer Standard
(Overlap now only 7frac14rdquo Since FY2017-18 Standards for newsingle-faced guardrail)
Guardrail Index 536-001 Sheets 7-8 13-14
Answerhellip
YES
Guardrail system ishellip
not long enough
Rigid Barrier Connection Any issue here
Minimum Length is Length of Approach Transition Connection lsquoLArsquoplus Length of End Treatment lsquoLErsquo
Guardrail Index 536-001 Sheets 7-8 13-14
Rigid Barrier End Shielding Min Length TL-2
lsquoLArsquo 213rsquo
+lsquoLErsquo 406rsquo
=
62rsquo
Guardrail Index 536-001 Sheets 7-8 13-14
Rigid Barrier End Shielding Min Length TL-2
lsquoLArsquo 213rsquo
+lsquoLErsquo 406rsquo
=
62rsquo
Guardrail Index 536-001 Sheets 7-8 13-14
Rigid Barrier End Shielding Min Length TL-3
lsquoLArsquo 306rsquo
+lsquoLErsquo 531rsquo
=
84rsquo
Guardrail Index 536-001 Sheets 7-8 13-14
Rigid Barrier End Shielding Min Length TL-3
lsquoLArsquo 306rsquo
+lsquoLErsquo 531rsquo
=
84rsquoNOTE If these lengths are not possible due to limited space consider the use of a Crash Cushion or a project-specific lsquovariationrsquo to fit the best barrier system possible
Contact Central Office for assistance
Guardrail Index 536-001 Sheets 7-8
Approach Terminals
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Any issues hereAnswerhellip YES
1 Flared terminals not permitted per RDB18-02
2 Curbed conditions require parallel Approach Terminals per Standard Plans ampSPI Part C3 Approach Terminals require lsquoType Ersquo Curb
Guardrail Index 536-001 Sheets 7-8
Approach Terminals
From Standard Planshellip
Answerhellip YES
1 Flared terminals not permitted per RDB18-02
2 Curbed conditions require parallel Approach Terminals per Standard Plans ampSPI Part C3 Approach Terminals require lsquoType Ersquo Curb
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Solution
1 Flared terminals not permitted per RDB18-02
2 Curbed conditions require parallel Approach Terminals per Standard Plans
3 Approach Terminals require lsquoType Ersquo Curb
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Any issues hereYES Wrong
First issuehellipFront slope break should be 6 feet behind guardrail face at post 1 per the Standards (110 Max)
Second issuehellipMisc Asphalt should extend 10 feet upstream of post 1 per Standards
Answerhellip
Guardrail Index 536-001 Sheets 7-8
Approach TerminalsYES Wrong
First issuehellipFront slope break should be 6 feet behind guardrail face at post 1 per the Standards (110 Min)
Second issuehellipMisc Asphalt should extend 10 feet upstream of post 1 per Standards
Answerhellip
From Standard Planshellip
Guardrail Index 536-001 Sheets 7-8
Approach TerminalsYES Wrong
First issuehellipFront slope break should be 6 feet behind guardrail face at post 1 per the Standards (110 Min)
Second issuehellipMisc Asphalt should extend 10 feet upstream of post 1 per Standards
Answerhellip
Example of Poor Slope Break Location (and steep slope not shielded)
Photo Credit Bill Fitzgerald PE
Guardrail Index 536-001 Sheets 7-8
Approach TerminalsYES Wrong
First issuehellipFront slope break should be 6 feet behind guardrail face at post 1 per the Standards (110 Min)
Second issuehellipMisc Asphalt should extend 10 feet upstream of post 1 per Standards
Answerhellip
Example of Poor Grading (The reason for Misc Asphalt requirement)
Photo Credit Bill Fitzgerald PE
Guardrail Index 536-001 Sheets 7-8
Approach Terminals SolutionYES Wrong
First issuehellipFront slope break should be 6 feet behind guardrail face at post 1 per the Standards (110 Min)
Second issuehellipMisc Asphalt should extend 10 feet upstream of post 1 per Standards
Answerhellip
Correctedhellip
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Any issues hereYES Wrong
First issuehellipTrees are within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
Second issuehellipTree violates barrier setback per FDM Table 21542
Answerhellip
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Any issues hereYES Wrong
First issuehellipTrees are within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
Second issuehellipTree violates barrier setback per FDM Table 21542
Answerhellip
Guardrail Index 536-001 Sheets 7-8
Approach TerminalsYES Wrong
First issuehellipTrees are within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
From Standard Planshellip
Guardrail Index 536-001 Sheets 7-8
Approach Terminals
CREDIT VIRGINIA DOT ndash SKT Crash Test Published October 2016
httpswwwyoutubecomwatchv=OsKlfatcjogampfeature=youtube
httpswwwyoutubecomwatchv=h7tct7Oo9-8ampfeature=youtube
YES Wrong
First issuehellipTrees are within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
Guardrail Index 536-001 Sheets 7-8
Approach Terminals
CREDIT VIRGINIA DOT ndash SKT Crash Test Published October 2016
httpswwwyoutubecomwatchv=74ImLTY-PhUampfeature=youtube
YES Wrong
First issuehellipTrees are within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
Guardrail Index 536-001 Sheets 7-8
Approach TerminalsYES Wrong
First issuehellipTrees are within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
From Standard Planshellip
Guardrail Index 536-001
YES Wrong
Second issuehellipTree violates barrier setback per FDM Table 21542
Guardrail Index 536-001
YES Wrong
Second issuehellipTree violates barrier setback per FDM Table 21542
From FDMhellip
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Any issue hereYES Wrong
First issuehellipPerpendicular guardrail is not proven crashworthybull No end treatmentsbull Violates ldquotaper raterdquo
requirements of SPI Part I (big time)
bull Requires shielding if within Clear Zone
Answerhellip
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Any issue hereYES Wrong
Second issuehellipPerpendicular guardrail within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Any issue hereYES Wrong
Third issuehellipPerpendicular guardrail violates barrier setback per FDM Table 21542
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Solution 1
REMOVE theperpendicularGuardrail
Orhellip
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Solution 2
1 Extend Guardrail to meet Length of Need per SPI Part B (Excel lsquoDesign Toolrsquo) which is Roadside Design Guide Eq 5-3
2 Meet minimum barrier setback per FDM Table 21542 (5 feet for general guardrail)
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Final Case StudyAssumptionsbull Design Speed
50 mph
bull Piers designed to withstand 600 kip impact load per FDM215454(Pier Protection Barrier notRequired)
Guardrail Index 536-001
Approach Terminals Any issue hereAnswerhellip YES
First issuehellipPiers NOT shielded
ldquoLength of Needrdquo NOT met per SPI Part B (Excel Design Tool)
Guardrail Index 536-001
Approach Terminals Any issue hereAnswerhellip YES
First issuehellipPiers NOT shielded
ldquoLength of Needrdquo NOT met per SPI Part B (Excel Design Tool)
Piers are behind the ldquogatingrdquo(break-away) portion of Approach Terminal
Guardrail Index 536-001
Approach Terminals Any issue hereYES
Second issuehellipFlared Terminal usage on hold per RDB18-02
Regardlesshellip ldquoTaper Raterdquo too steep here at Approach Terminal (about 13 shown)
Guardrail requires 115 Max Taper Rate per SPI Part I
Guardrail Index 536-001
Approach Terminals Any issue hereAnswerhellip YES
Third issuehellipldquoBarrier Setbackrdquo requirement likely not satisfied
per FDM Table 21542(5 feet or greater)hellip
Guardrail Index 536-001
Approach Terminals Any issue hereYES
Fourth issuehellipldquoTrailing Anchoragerdquo not properly extended downstream of hazard
25-foot Requirement SPI C1 amp lsquoLONrsquo Design Tool (Excel)hellip
Answerhellip
Guardrail Index 536-001
Approach Terminals Any issue hereYES
Fourth issuehellipldquoTrailing Anchoragerdquo not properly extended downstream of hazard
25-foot Requirement SPI C1 amp lsquoLONrsquo Design Tool (Excel)hellip
AnswerhellipFrom lsquoLength of Needrsquo Excel Sheethellip
Guardrail Index 536-001 Crash Cushion Index 544-001
Approach Terminals Solution 1lsquoCrash Cushionrsquobull ldquoSystem Widthrdquo ndash
lsquoWidersquo per SPI 544-001 Part C
bull ldquoLength Restrictionrdquo - per SPI 544-001 Part F
bull Contact Central Office for guidance
Note Define Crash Cushion with provided CADD cellhellipldquoSummary of Permanent Crash Cushions Tablerdquo
Guardrail Index 536-001 Crash Cushion Index 544-001
Approach Terminals Solution 1lsquoCrash Cushionrsquobull Guardrail ldquoreduced
post spacingrdquo to reduce required hazard setback per FDM Table 21542
bull Again contact Central Office for guidance for such limited space
Concrete Barrier Index 521-001 Crash Cushion 544-001
Approach Terminals Solution 2lsquoConcrete Barrierrsquo amp lsquoCrash Cushionrsquo
bull Requires project-specific design
bull Contact Central Office for guidance for such limited space
Questions
Richard Stepp PEStandard Plans Engineer
Central Office Roadway Design(850) 414-4313
richardsteppdotstateflus
Standard Plans Single-Slope Barriers
Grading Any issues here
Guardrail Index 536-001
Answerhellip
YES
bull Front slope looks too steep
bull Slope break likely too close to post
Photo Credit Bill Fitzgerald PEKLS Engineering LLC
Grading lsquoStandard Postrsquo Requirements
Guardrail Index 536-001 Sheet 6
bull Front slope must be 12 or flatter
bull Slope break must be 2 feet behind postUnless
Grading lsquoDeep Postrsquo Requirements
Guardrail Index 536-001 Sheet 6
bull If lsquoDeep Postrsquo is called for slope break may be located at Center Line of post
bull STILL Front slope must be 12 or flatterNote Unique Pay Item 536-7-1
Guardrail Index 536-001
Shoulder Widens Any issue here
Answerhellip YESbull ldquoTaper Raterdquo requirement is violatedbull Per Standard Plans Instructions (SPI) Part I
bull Design Speed le 45 mph requires 110 Maxbull Design Speed gt 45mph requires 115 Max
Single Face to Double Face Any Issue
Guardrail Index 536-001 Sheet 9
Answerhellip
YES
bull ldquoTrailing Anchoragerdquo Standard is not used here (not detailed this way)
Index 536-001 does not show this as a Trailing Anchorage scenario and the details are not compatible or required
Single Face to Double Face Solution
Guardrail Index 536-001
Call for a Standard ldquoFlared End Unitrdquo (included with General Guardrail Pay Item) More guidance provided in next yearrsquos eBook
bull No ldquoTrailing Anchoragerdquo
bull Just call out Begin and End of guardrail types (on face closest to traveled way)
CRT System (Radial) Any issue here
Guardrail Index 536-001 Sheets 11 amp 12
AnswerhellipYES
First IssueObstruction is in the ldquoClear Area Limitrdquo per Standard Plans
(Controlled Release Terminal)
Guardrail Index 536-001 Sheets 11 amp 12
CRT System (Radial)AnswerhellipYES
First IssueObstruction is in the ldquoClear Area Limitrdquo per Standard Plans
Photo Credit Bill Fitzgerald PEKLS Engineering LLC
Guardrail Index 536-001 Sheets 11 amp 12
bull ldquoClear Areardquo Required (15rsquox30rsquo)
bull ldquoClear Areardquo is free of obstructions and has 12 Slope Max
CRT System (Radial) From Standard Planshellip
Guardrail Index 536-001 Sheets 11 amp 12
Requires 25-footlinear End TreatmentPer Standard Plans
(12rsquo-6rdquo Shown)
CRT System (Radial) Any other issue here
Guardrail Index 536-001 Sheets 11 amp 12
bull 25-foot linear End Treatment required
bull If this is not possible due limited space use a lsquovariationrsquo for General Radial Guardrail (Not CRT)(No breakaway posts)
CRT System (Radial) Per Standard Planshellip
Guardrail Index 536-001 Sheet 20
Pipe Rail Callouts Any issue hereAnswerhellip YES
Pipe Rail must terminate outside of End Treatments per SPI Part E and Standard PlansSolution
Guardrail Index 536-001 Sheets 13-15
Rigid Barrier Connections End Shielding
Guardrail Index 536-001 Sheets 13-15
Rigid Barrier Connection Any Issue HereAnswerhellip YES
asymp13 foot overlap with barrier is no longer Standard
(Overlap now only 7frac14rdquo Since FY2017-18 Standards for newsingle-faced guardrail)
Guardrail Index 536-001 Sheets 13-15
Rigid Barrier Connection Any Issues HereYES
asymp13 foot overlap with barrier is no longer Standard
(Overlap now only 7frac14rdquo Since FY2017-18 Standards for newsingle-faced guardrail)
Guardrail Index 536-001 Sheets 13-15
Rigid Barrier Connection Any Issues Here
Solution
YES
asymp13 foot overlap with barrier is no longer Standard
(Overlap now only 7frac14rdquo Since FY2017-18 Standards for newsingle-faced guardrail)
Guardrail Index 536-001 Sheets 7-8 13-14
Answerhellip
YES
Guardrail system ishellip
not long enough
Rigid Barrier Connection Any issue here
Minimum Length is Length of Approach Transition Connection lsquoLArsquoplus Length of End Treatment lsquoLErsquo
Guardrail Index 536-001 Sheets 7-8 13-14
Rigid Barrier End Shielding Min Length TL-2
lsquoLArsquo 213rsquo
+lsquoLErsquo 406rsquo
=
62rsquo
Guardrail Index 536-001 Sheets 7-8 13-14
Rigid Barrier End Shielding Min Length TL-2
lsquoLArsquo 213rsquo
+lsquoLErsquo 406rsquo
=
62rsquo
Guardrail Index 536-001 Sheets 7-8 13-14
Rigid Barrier End Shielding Min Length TL-3
lsquoLArsquo 306rsquo
+lsquoLErsquo 531rsquo
=
84rsquo
Guardrail Index 536-001 Sheets 7-8 13-14
Rigid Barrier End Shielding Min Length TL-3
lsquoLArsquo 306rsquo
+lsquoLErsquo 531rsquo
=
84rsquoNOTE If these lengths are not possible due to limited space consider the use of a Crash Cushion or a project-specific lsquovariationrsquo to fit the best barrier system possible
Contact Central Office for assistance
Guardrail Index 536-001 Sheets 7-8
Approach Terminals
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Any issues hereAnswerhellip YES
1 Flared terminals not permitted per RDB18-02
2 Curbed conditions require parallel Approach Terminals per Standard Plans ampSPI Part C3 Approach Terminals require lsquoType Ersquo Curb
Guardrail Index 536-001 Sheets 7-8
Approach Terminals
From Standard Planshellip
Answerhellip YES
1 Flared terminals not permitted per RDB18-02
2 Curbed conditions require parallel Approach Terminals per Standard Plans ampSPI Part C3 Approach Terminals require lsquoType Ersquo Curb
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Solution
1 Flared terminals not permitted per RDB18-02
2 Curbed conditions require parallel Approach Terminals per Standard Plans
3 Approach Terminals require lsquoType Ersquo Curb
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Any issues hereYES Wrong
First issuehellipFront slope break should be 6 feet behind guardrail face at post 1 per the Standards (110 Max)
Second issuehellipMisc Asphalt should extend 10 feet upstream of post 1 per Standards
Answerhellip
Guardrail Index 536-001 Sheets 7-8
Approach TerminalsYES Wrong
First issuehellipFront slope break should be 6 feet behind guardrail face at post 1 per the Standards (110 Min)
Second issuehellipMisc Asphalt should extend 10 feet upstream of post 1 per Standards
Answerhellip
From Standard Planshellip
Guardrail Index 536-001 Sheets 7-8
Approach TerminalsYES Wrong
First issuehellipFront slope break should be 6 feet behind guardrail face at post 1 per the Standards (110 Min)
Second issuehellipMisc Asphalt should extend 10 feet upstream of post 1 per Standards
Answerhellip
Example of Poor Slope Break Location (and steep slope not shielded)
Photo Credit Bill Fitzgerald PE
Guardrail Index 536-001 Sheets 7-8
Approach TerminalsYES Wrong
First issuehellipFront slope break should be 6 feet behind guardrail face at post 1 per the Standards (110 Min)
Second issuehellipMisc Asphalt should extend 10 feet upstream of post 1 per Standards
Answerhellip
Example of Poor Grading (The reason for Misc Asphalt requirement)
Photo Credit Bill Fitzgerald PE
Guardrail Index 536-001 Sheets 7-8
Approach Terminals SolutionYES Wrong
First issuehellipFront slope break should be 6 feet behind guardrail face at post 1 per the Standards (110 Min)
Second issuehellipMisc Asphalt should extend 10 feet upstream of post 1 per Standards
Answerhellip
Correctedhellip
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Any issues hereYES Wrong
First issuehellipTrees are within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
Second issuehellipTree violates barrier setback per FDM Table 21542
Answerhellip
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Any issues hereYES Wrong
First issuehellipTrees are within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
Second issuehellipTree violates barrier setback per FDM Table 21542
Answerhellip
Guardrail Index 536-001 Sheets 7-8
Approach TerminalsYES Wrong
First issuehellipTrees are within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
From Standard Planshellip
Guardrail Index 536-001 Sheets 7-8
Approach Terminals
CREDIT VIRGINIA DOT ndash SKT Crash Test Published October 2016
httpswwwyoutubecomwatchv=OsKlfatcjogampfeature=youtube
httpswwwyoutubecomwatchv=h7tct7Oo9-8ampfeature=youtube
YES Wrong
First issuehellipTrees are within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
Guardrail Index 536-001 Sheets 7-8
Approach Terminals
CREDIT VIRGINIA DOT ndash SKT Crash Test Published October 2016
httpswwwyoutubecomwatchv=74ImLTY-PhUampfeature=youtube
YES Wrong
First issuehellipTrees are within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
Guardrail Index 536-001 Sheets 7-8
Approach TerminalsYES Wrong
First issuehellipTrees are within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
From Standard Planshellip
Guardrail Index 536-001
YES Wrong
Second issuehellipTree violates barrier setback per FDM Table 21542
Guardrail Index 536-001
YES Wrong
Second issuehellipTree violates barrier setback per FDM Table 21542
From FDMhellip
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Any issue hereYES Wrong
First issuehellipPerpendicular guardrail is not proven crashworthybull No end treatmentsbull Violates ldquotaper raterdquo
requirements of SPI Part I (big time)
bull Requires shielding if within Clear Zone
Answerhellip
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Any issue hereYES Wrong
Second issuehellipPerpendicular guardrail within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Any issue hereYES Wrong
Third issuehellipPerpendicular guardrail violates barrier setback per FDM Table 21542
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Solution 1
REMOVE theperpendicularGuardrail
Orhellip
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Solution 2
1 Extend Guardrail to meet Length of Need per SPI Part B (Excel lsquoDesign Toolrsquo) which is Roadside Design Guide Eq 5-3
2 Meet minimum barrier setback per FDM Table 21542 (5 feet for general guardrail)
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Final Case StudyAssumptionsbull Design Speed
50 mph
bull Piers designed to withstand 600 kip impact load per FDM215454(Pier Protection Barrier notRequired)
Guardrail Index 536-001
Approach Terminals Any issue hereAnswerhellip YES
First issuehellipPiers NOT shielded
ldquoLength of Needrdquo NOT met per SPI Part B (Excel Design Tool)
Guardrail Index 536-001
Approach Terminals Any issue hereAnswerhellip YES
First issuehellipPiers NOT shielded
ldquoLength of Needrdquo NOT met per SPI Part B (Excel Design Tool)
Piers are behind the ldquogatingrdquo(break-away) portion of Approach Terminal
Guardrail Index 536-001
Approach Terminals Any issue hereYES
Second issuehellipFlared Terminal usage on hold per RDB18-02
Regardlesshellip ldquoTaper Raterdquo too steep here at Approach Terminal (about 13 shown)
Guardrail requires 115 Max Taper Rate per SPI Part I
Guardrail Index 536-001
Approach Terminals Any issue hereAnswerhellip YES
Third issuehellipldquoBarrier Setbackrdquo requirement likely not satisfied
per FDM Table 21542(5 feet or greater)hellip
Guardrail Index 536-001
Approach Terminals Any issue hereYES
Fourth issuehellipldquoTrailing Anchoragerdquo not properly extended downstream of hazard
25-foot Requirement SPI C1 amp lsquoLONrsquo Design Tool (Excel)hellip
Answerhellip
Guardrail Index 536-001
Approach Terminals Any issue hereYES
Fourth issuehellipldquoTrailing Anchoragerdquo not properly extended downstream of hazard
25-foot Requirement SPI C1 amp lsquoLONrsquo Design Tool (Excel)hellip
AnswerhellipFrom lsquoLength of Needrsquo Excel Sheethellip
Guardrail Index 536-001 Crash Cushion Index 544-001
Approach Terminals Solution 1lsquoCrash Cushionrsquobull ldquoSystem Widthrdquo ndash
lsquoWidersquo per SPI 544-001 Part C
bull ldquoLength Restrictionrdquo - per SPI 544-001 Part F
bull Contact Central Office for guidance
Note Define Crash Cushion with provided CADD cellhellipldquoSummary of Permanent Crash Cushions Tablerdquo
Guardrail Index 536-001 Crash Cushion Index 544-001
Approach Terminals Solution 1lsquoCrash Cushionrsquobull Guardrail ldquoreduced
post spacingrdquo to reduce required hazard setback per FDM Table 21542
bull Again contact Central Office for guidance for such limited space
Concrete Barrier Index 521-001 Crash Cushion 544-001
Approach Terminals Solution 2lsquoConcrete Barrierrsquo amp lsquoCrash Cushionrsquo
bull Requires project-specific design
bull Contact Central Office for guidance for such limited space
Questions
Richard Stepp PEStandard Plans Engineer
Central Office Roadway Design(850) 414-4313
richardsteppdotstateflus
Standard Plans Single-Slope Barriers
Grading lsquoStandard Postrsquo Requirements
Guardrail Index 536-001 Sheet 6
bull Front slope must be 12 or flatter
bull Slope break must be 2 feet behind postUnless
Grading lsquoDeep Postrsquo Requirements
Guardrail Index 536-001 Sheet 6
bull If lsquoDeep Postrsquo is called for slope break may be located at Center Line of post
bull STILL Front slope must be 12 or flatterNote Unique Pay Item 536-7-1
Guardrail Index 536-001
Shoulder Widens Any issue here
Answerhellip YESbull ldquoTaper Raterdquo requirement is violatedbull Per Standard Plans Instructions (SPI) Part I
bull Design Speed le 45 mph requires 110 Maxbull Design Speed gt 45mph requires 115 Max
Single Face to Double Face Any Issue
Guardrail Index 536-001 Sheet 9
Answerhellip
YES
bull ldquoTrailing Anchoragerdquo Standard is not used here (not detailed this way)
Index 536-001 does not show this as a Trailing Anchorage scenario and the details are not compatible or required
Single Face to Double Face Solution
Guardrail Index 536-001
Call for a Standard ldquoFlared End Unitrdquo (included with General Guardrail Pay Item) More guidance provided in next yearrsquos eBook
bull No ldquoTrailing Anchoragerdquo
bull Just call out Begin and End of guardrail types (on face closest to traveled way)
CRT System (Radial) Any issue here
Guardrail Index 536-001 Sheets 11 amp 12
AnswerhellipYES
First IssueObstruction is in the ldquoClear Area Limitrdquo per Standard Plans
(Controlled Release Terminal)
Guardrail Index 536-001 Sheets 11 amp 12
CRT System (Radial)AnswerhellipYES
First IssueObstruction is in the ldquoClear Area Limitrdquo per Standard Plans
Photo Credit Bill Fitzgerald PEKLS Engineering LLC
Guardrail Index 536-001 Sheets 11 amp 12
bull ldquoClear Areardquo Required (15rsquox30rsquo)
bull ldquoClear Areardquo is free of obstructions and has 12 Slope Max
CRT System (Radial) From Standard Planshellip
Guardrail Index 536-001 Sheets 11 amp 12
Requires 25-footlinear End TreatmentPer Standard Plans
(12rsquo-6rdquo Shown)
CRT System (Radial) Any other issue here
Guardrail Index 536-001 Sheets 11 amp 12
bull 25-foot linear End Treatment required
bull If this is not possible due limited space use a lsquovariationrsquo for General Radial Guardrail (Not CRT)(No breakaway posts)
CRT System (Radial) Per Standard Planshellip
Guardrail Index 536-001 Sheet 20
Pipe Rail Callouts Any issue hereAnswerhellip YES
Pipe Rail must terminate outside of End Treatments per SPI Part E and Standard PlansSolution
Guardrail Index 536-001 Sheets 13-15
Rigid Barrier Connections End Shielding
Guardrail Index 536-001 Sheets 13-15
Rigid Barrier Connection Any Issue HereAnswerhellip YES
asymp13 foot overlap with barrier is no longer Standard
(Overlap now only 7frac14rdquo Since FY2017-18 Standards for newsingle-faced guardrail)
Guardrail Index 536-001 Sheets 13-15
Rigid Barrier Connection Any Issues HereYES
asymp13 foot overlap with barrier is no longer Standard
(Overlap now only 7frac14rdquo Since FY2017-18 Standards for newsingle-faced guardrail)
Guardrail Index 536-001 Sheets 13-15
Rigid Barrier Connection Any Issues Here
Solution
YES
asymp13 foot overlap with barrier is no longer Standard
(Overlap now only 7frac14rdquo Since FY2017-18 Standards for newsingle-faced guardrail)
Guardrail Index 536-001 Sheets 7-8 13-14
Answerhellip
YES
Guardrail system ishellip
not long enough
Rigid Barrier Connection Any issue here
Minimum Length is Length of Approach Transition Connection lsquoLArsquoplus Length of End Treatment lsquoLErsquo
Guardrail Index 536-001 Sheets 7-8 13-14
Rigid Barrier End Shielding Min Length TL-2
lsquoLArsquo 213rsquo
+lsquoLErsquo 406rsquo
=
62rsquo
Guardrail Index 536-001 Sheets 7-8 13-14
Rigid Barrier End Shielding Min Length TL-2
lsquoLArsquo 213rsquo
+lsquoLErsquo 406rsquo
=
62rsquo
Guardrail Index 536-001 Sheets 7-8 13-14
Rigid Barrier End Shielding Min Length TL-3
lsquoLArsquo 306rsquo
+lsquoLErsquo 531rsquo
=
84rsquo
Guardrail Index 536-001 Sheets 7-8 13-14
Rigid Barrier End Shielding Min Length TL-3
lsquoLArsquo 306rsquo
+lsquoLErsquo 531rsquo
=
84rsquoNOTE If these lengths are not possible due to limited space consider the use of a Crash Cushion or a project-specific lsquovariationrsquo to fit the best barrier system possible
Contact Central Office for assistance
Guardrail Index 536-001 Sheets 7-8
Approach Terminals
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Any issues hereAnswerhellip YES
1 Flared terminals not permitted per RDB18-02
2 Curbed conditions require parallel Approach Terminals per Standard Plans ampSPI Part C3 Approach Terminals require lsquoType Ersquo Curb
Guardrail Index 536-001 Sheets 7-8
Approach Terminals
From Standard Planshellip
Answerhellip YES
1 Flared terminals not permitted per RDB18-02
2 Curbed conditions require parallel Approach Terminals per Standard Plans ampSPI Part C3 Approach Terminals require lsquoType Ersquo Curb
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Solution
1 Flared terminals not permitted per RDB18-02
2 Curbed conditions require parallel Approach Terminals per Standard Plans
3 Approach Terminals require lsquoType Ersquo Curb
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Any issues hereYES Wrong
First issuehellipFront slope break should be 6 feet behind guardrail face at post 1 per the Standards (110 Max)
Second issuehellipMisc Asphalt should extend 10 feet upstream of post 1 per Standards
Answerhellip
Guardrail Index 536-001 Sheets 7-8
Approach TerminalsYES Wrong
First issuehellipFront slope break should be 6 feet behind guardrail face at post 1 per the Standards (110 Min)
Second issuehellipMisc Asphalt should extend 10 feet upstream of post 1 per Standards
Answerhellip
From Standard Planshellip
Guardrail Index 536-001 Sheets 7-8
Approach TerminalsYES Wrong
First issuehellipFront slope break should be 6 feet behind guardrail face at post 1 per the Standards (110 Min)
Second issuehellipMisc Asphalt should extend 10 feet upstream of post 1 per Standards
Answerhellip
Example of Poor Slope Break Location (and steep slope not shielded)
Photo Credit Bill Fitzgerald PE
Guardrail Index 536-001 Sheets 7-8
Approach TerminalsYES Wrong
First issuehellipFront slope break should be 6 feet behind guardrail face at post 1 per the Standards (110 Min)
Second issuehellipMisc Asphalt should extend 10 feet upstream of post 1 per Standards
Answerhellip
Example of Poor Grading (The reason for Misc Asphalt requirement)
Photo Credit Bill Fitzgerald PE
Guardrail Index 536-001 Sheets 7-8
Approach Terminals SolutionYES Wrong
First issuehellipFront slope break should be 6 feet behind guardrail face at post 1 per the Standards (110 Min)
Second issuehellipMisc Asphalt should extend 10 feet upstream of post 1 per Standards
Answerhellip
Correctedhellip
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Any issues hereYES Wrong
First issuehellipTrees are within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
Second issuehellipTree violates barrier setback per FDM Table 21542
Answerhellip
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Any issues hereYES Wrong
First issuehellipTrees are within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
Second issuehellipTree violates barrier setback per FDM Table 21542
Answerhellip
Guardrail Index 536-001 Sheets 7-8
Approach TerminalsYES Wrong
First issuehellipTrees are within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
From Standard Planshellip
Guardrail Index 536-001 Sheets 7-8
Approach Terminals
CREDIT VIRGINIA DOT ndash SKT Crash Test Published October 2016
httpswwwyoutubecomwatchv=OsKlfatcjogampfeature=youtube
httpswwwyoutubecomwatchv=h7tct7Oo9-8ampfeature=youtube
YES Wrong
First issuehellipTrees are within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
Guardrail Index 536-001 Sheets 7-8
Approach Terminals
CREDIT VIRGINIA DOT ndash SKT Crash Test Published October 2016
httpswwwyoutubecomwatchv=74ImLTY-PhUampfeature=youtube
YES Wrong
First issuehellipTrees are within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
Guardrail Index 536-001 Sheets 7-8
Approach TerminalsYES Wrong
First issuehellipTrees are within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
From Standard Planshellip
Guardrail Index 536-001
YES Wrong
Second issuehellipTree violates barrier setback per FDM Table 21542
Guardrail Index 536-001
YES Wrong
Second issuehellipTree violates barrier setback per FDM Table 21542
From FDMhellip
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Any issue hereYES Wrong
First issuehellipPerpendicular guardrail is not proven crashworthybull No end treatmentsbull Violates ldquotaper raterdquo
requirements of SPI Part I (big time)
bull Requires shielding if within Clear Zone
Answerhellip
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Any issue hereYES Wrong
Second issuehellipPerpendicular guardrail within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Any issue hereYES Wrong
Third issuehellipPerpendicular guardrail violates barrier setback per FDM Table 21542
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Solution 1
REMOVE theperpendicularGuardrail
Orhellip
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Solution 2
1 Extend Guardrail to meet Length of Need per SPI Part B (Excel lsquoDesign Toolrsquo) which is Roadside Design Guide Eq 5-3
2 Meet minimum barrier setback per FDM Table 21542 (5 feet for general guardrail)
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Final Case StudyAssumptionsbull Design Speed
50 mph
bull Piers designed to withstand 600 kip impact load per FDM215454(Pier Protection Barrier notRequired)
Guardrail Index 536-001
Approach Terminals Any issue hereAnswerhellip YES
First issuehellipPiers NOT shielded
ldquoLength of Needrdquo NOT met per SPI Part B (Excel Design Tool)
Guardrail Index 536-001
Approach Terminals Any issue hereAnswerhellip YES
First issuehellipPiers NOT shielded
ldquoLength of Needrdquo NOT met per SPI Part B (Excel Design Tool)
Piers are behind the ldquogatingrdquo(break-away) portion of Approach Terminal
Guardrail Index 536-001
Approach Terminals Any issue hereYES
Second issuehellipFlared Terminal usage on hold per RDB18-02
Regardlesshellip ldquoTaper Raterdquo too steep here at Approach Terminal (about 13 shown)
Guardrail requires 115 Max Taper Rate per SPI Part I
Guardrail Index 536-001
Approach Terminals Any issue hereAnswerhellip YES
Third issuehellipldquoBarrier Setbackrdquo requirement likely not satisfied
per FDM Table 21542(5 feet or greater)hellip
Guardrail Index 536-001
Approach Terminals Any issue hereYES
Fourth issuehellipldquoTrailing Anchoragerdquo not properly extended downstream of hazard
25-foot Requirement SPI C1 amp lsquoLONrsquo Design Tool (Excel)hellip
Answerhellip
Guardrail Index 536-001
Approach Terminals Any issue hereYES
Fourth issuehellipldquoTrailing Anchoragerdquo not properly extended downstream of hazard
25-foot Requirement SPI C1 amp lsquoLONrsquo Design Tool (Excel)hellip
AnswerhellipFrom lsquoLength of Needrsquo Excel Sheethellip
Guardrail Index 536-001 Crash Cushion Index 544-001
Approach Terminals Solution 1lsquoCrash Cushionrsquobull ldquoSystem Widthrdquo ndash
lsquoWidersquo per SPI 544-001 Part C
bull ldquoLength Restrictionrdquo - per SPI 544-001 Part F
bull Contact Central Office for guidance
Note Define Crash Cushion with provided CADD cellhellipldquoSummary of Permanent Crash Cushions Tablerdquo
Guardrail Index 536-001 Crash Cushion Index 544-001
Approach Terminals Solution 1lsquoCrash Cushionrsquobull Guardrail ldquoreduced
post spacingrdquo to reduce required hazard setback per FDM Table 21542
bull Again contact Central Office for guidance for such limited space
Concrete Barrier Index 521-001 Crash Cushion 544-001
Approach Terminals Solution 2lsquoConcrete Barrierrsquo amp lsquoCrash Cushionrsquo
bull Requires project-specific design
bull Contact Central Office for guidance for such limited space
Questions
Richard Stepp PEStandard Plans Engineer
Central Office Roadway Design(850) 414-4313
richardsteppdotstateflus
Standard Plans Single-Slope Barriers
Grading lsquoDeep Postrsquo Requirements
Guardrail Index 536-001 Sheet 6
bull If lsquoDeep Postrsquo is called for slope break may be located at Center Line of post
bull STILL Front slope must be 12 or flatterNote Unique Pay Item 536-7-1
Guardrail Index 536-001
Shoulder Widens Any issue here
Answerhellip YESbull ldquoTaper Raterdquo requirement is violatedbull Per Standard Plans Instructions (SPI) Part I
bull Design Speed le 45 mph requires 110 Maxbull Design Speed gt 45mph requires 115 Max
Single Face to Double Face Any Issue
Guardrail Index 536-001 Sheet 9
Answerhellip
YES
bull ldquoTrailing Anchoragerdquo Standard is not used here (not detailed this way)
Index 536-001 does not show this as a Trailing Anchorage scenario and the details are not compatible or required
Single Face to Double Face Solution
Guardrail Index 536-001
Call for a Standard ldquoFlared End Unitrdquo (included with General Guardrail Pay Item) More guidance provided in next yearrsquos eBook
bull No ldquoTrailing Anchoragerdquo
bull Just call out Begin and End of guardrail types (on face closest to traveled way)
CRT System (Radial) Any issue here
Guardrail Index 536-001 Sheets 11 amp 12
AnswerhellipYES
First IssueObstruction is in the ldquoClear Area Limitrdquo per Standard Plans
(Controlled Release Terminal)
Guardrail Index 536-001 Sheets 11 amp 12
CRT System (Radial)AnswerhellipYES
First IssueObstruction is in the ldquoClear Area Limitrdquo per Standard Plans
Photo Credit Bill Fitzgerald PEKLS Engineering LLC
Guardrail Index 536-001 Sheets 11 amp 12
bull ldquoClear Areardquo Required (15rsquox30rsquo)
bull ldquoClear Areardquo is free of obstructions and has 12 Slope Max
CRT System (Radial) From Standard Planshellip
Guardrail Index 536-001 Sheets 11 amp 12
Requires 25-footlinear End TreatmentPer Standard Plans
(12rsquo-6rdquo Shown)
CRT System (Radial) Any other issue here
Guardrail Index 536-001 Sheets 11 amp 12
bull 25-foot linear End Treatment required
bull If this is not possible due limited space use a lsquovariationrsquo for General Radial Guardrail (Not CRT)(No breakaway posts)
CRT System (Radial) Per Standard Planshellip
Guardrail Index 536-001 Sheet 20
Pipe Rail Callouts Any issue hereAnswerhellip YES
Pipe Rail must terminate outside of End Treatments per SPI Part E and Standard PlansSolution
Guardrail Index 536-001 Sheets 13-15
Rigid Barrier Connections End Shielding
Guardrail Index 536-001 Sheets 13-15
Rigid Barrier Connection Any Issue HereAnswerhellip YES
asymp13 foot overlap with barrier is no longer Standard
(Overlap now only 7frac14rdquo Since FY2017-18 Standards for newsingle-faced guardrail)
Guardrail Index 536-001 Sheets 13-15
Rigid Barrier Connection Any Issues HereYES
asymp13 foot overlap with barrier is no longer Standard
(Overlap now only 7frac14rdquo Since FY2017-18 Standards for newsingle-faced guardrail)
Guardrail Index 536-001 Sheets 13-15
Rigid Barrier Connection Any Issues Here
Solution
YES
asymp13 foot overlap with barrier is no longer Standard
(Overlap now only 7frac14rdquo Since FY2017-18 Standards for newsingle-faced guardrail)
Guardrail Index 536-001 Sheets 7-8 13-14
Answerhellip
YES
Guardrail system ishellip
not long enough
Rigid Barrier Connection Any issue here
Minimum Length is Length of Approach Transition Connection lsquoLArsquoplus Length of End Treatment lsquoLErsquo
Guardrail Index 536-001 Sheets 7-8 13-14
Rigid Barrier End Shielding Min Length TL-2
lsquoLArsquo 213rsquo
+lsquoLErsquo 406rsquo
=
62rsquo
Guardrail Index 536-001 Sheets 7-8 13-14
Rigid Barrier End Shielding Min Length TL-2
lsquoLArsquo 213rsquo
+lsquoLErsquo 406rsquo
=
62rsquo
Guardrail Index 536-001 Sheets 7-8 13-14
Rigid Barrier End Shielding Min Length TL-3
lsquoLArsquo 306rsquo
+lsquoLErsquo 531rsquo
=
84rsquo
Guardrail Index 536-001 Sheets 7-8 13-14
Rigid Barrier End Shielding Min Length TL-3
lsquoLArsquo 306rsquo
+lsquoLErsquo 531rsquo
=
84rsquoNOTE If these lengths are not possible due to limited space consider the use of a Crash Cushion or a project-specific lsquovariationrsquo to fit the best barrier system possible
Contact Central Office for assistance
Guardrail Index 536-001 Sheets 7-8
Approach Terminals
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Any issues hereAnswerhellip YES
1 Flared terminals not permitted per RDB18-02
2 Curbed conditions require parallel Approach Terminals per Standard Plans ampSPI Part C3 Approach Terminals require lsquoType Ersquo Curb
Guardrail Index 536-001 Sheets 7-8
Approach Terminals
From Standard Planshellip
Answerhellip YES
1 Flared terminals not permitted per RDB18-02
2 Curbed conditions require parallel Approach Terminals per Standard Plans ampSPI Part C3 Approach Terminals require lsquoType Ersquo Curb
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Solution
1 Flared terminals not permitted per RDB18-02
2 Curbed conditions require parallel Approach Terminals per Standard Plans
3 Approach Terminals require lsquoType Ersquo Curb
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Any issues hereYES Wrong
First issuehellipFront slope break should be 6 feet behind guardrail face at post 1 per the Standards (110 Max)
Second issuehellipMisc Asphalt should extend 10 feet upstream of post 1 per Standards
Answerhellip
Guardrail Index 536-001 Sheets 7-8
Approach TerminalsYES Wrong
First issuehellipFront slope break should be 6 feet behind guardrail face at post 1 per the Standards (110 Min)
Second issuehellipMisc Asphalt should extend 10 feet upstream of post 1 per Standards
Answerhellip
From Standard Planshellip
Guardrail Index 536-001 Sheets 7-8
Approach TerminalsYES Wrong
First issuehellipFront slope break should be 6 feet behind guardrail face at post 1 per the Standards (110 Min)
Second issuehellipMisc Asphalt should extend 10 feet upstream of post 1 per Standards
Answerhellip
Example of Poor Slope Break Location (and steep slope not shielded)
Photo Credit Bill Fitzgerald PE
Guardrail Index 536-001 Sheets 7-8
Approach TerminalsYES Wrong
First issuehellipFront slope break should be 6 feet behind guardrail face at post 1 per the Standards (110 Min)
Second issuehellipMisc Asphalt should extend 10 feet upstream of post 1 per Standards
Answerhellip
Example of Poor Grading (The reason for Misc Asphalt requirement)
Photo Credit Bill Fitzgerald PE
Guardrail Index 536-001 Sheets 7-8
Approach Terminals SolutionYES Wrong
First issuehellipFront slope break should be 6 feet behind guardrail face at post 1 per the Standards (110 Min)
Second issuehellipMisc Asphalt should extend 10 feet upstream of post 1 per Standards
Answerhellip
Correctedhellip
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Any issues hereYES Wrong
First issuehellipTrees are within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
Second issuehellipTree violates barrier setback per FDM Table 21542
Answerhellip
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Any issues hereYES Wrong
First issuehellipTrees are within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
Second issuehellipTree violates barrier setback per FDM Table 21542
Answerhellip
Guardrail Index 536-001 Sheets 7-8
Approach TerminalsYES Wrong
First issuehellipTrees are within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
From Standard Planshellip
Guardrail Index 536-001 Sheets 7-8
Approach Terminals
CREDIT VIRGINIA DOT ndash SKT Crash Test Published October 2016
httpswwwyoutubecomwatchv=OsKlfatcjogampfeature=youtube
httpswwwyoutubecomwatchv=h7tct7Oo9-8ampfeature=youtube
YES Wrong
First issuehellipTrees are within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
Guardrail Index 536-001 Sheets 7-8
Approach Terminals
CREDIT VIRGINIA DOT ndash SKT Crash Test Published October 2016
httpswwwyoutubecomwatchv=74ImLTY-PhUampfeature=youtube
YES Wrong
First issuehellipTrees are within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
Guardrail Index 536-001 Sheets 7-8
Approach TerminalsYES Wrong
First issuehellipTrees are within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
From Standard Planshellip
Guardrail Index 536-001
YES Wrong
Second issuehellipTree violates barrier setback per FDM Table 21542
Guardrail Index 536-001
YES Wrong
Second issuehellipTree violates barrier setback per FDM Table 21542
From FDMhellip
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Any issue hereYES Wrong
First issuehellipPerpendicular guardrail is not proven crashworthybull No end treatmentsbull Violates ldquotaper raterdquo
requirements of SPI Part I (big time)
bull Requires shielding if within Clear Zone
Answerhellip
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Any issue hereYES Wrong
Second issuehellipPerpendicular guardrail within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Any issue hereYES Wrong
Third issuehellipPerpendicular guardrail violates barrier setback per FDM Table 21542
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Solution 1
REMOVE theperpendicularGuardrail
Orhellip
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Solution 2
1 Extend Guardrail to meet Length of Need per SPI Part B (Excel lsquoDesign Toolrsquo) which is Roadside Design Guide Eq 5-3
2 Meet minimum barrier setback per FDM Table 21542 (5 feet for general guardrail)
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Final Case StudyAssumptionsbull Design Speed
50 mph
bull Piers designed to withstand 600 kip impact load per FDM215454(Pier Protection Barrier notRequired)
Guardrail Index 536-001
Approach Terminals Any issue hereAnswerhellip YES
First issuehellipPiers NOT shielded
ldquoLength of Needrdquo NOT met per SPI Part B (Excel Design Tool)
Guardrail Index 536-001
Approach Terminals Any issue hereAnswerhellip YES
First issuehellipPiers NOT shielded
ldquoLength of Needrdquo NOT met per SPI Part B (Excel Design Tool)
Piers are behind the ldquogatingrdquo(break-away) portion of Approach Terminal
Guardrail Index 536-001
Approach Terminals Any issue hereYES
Second issuehellipFlared Terminal usage on hold per RDB18-02
Regardlesshellip ldquoTaper Raterdquo too steep here at Approach Terminal (about 13 shown)
Guardrail requires 115 Max Taper Rate per SPI Part I
Guardrail Index 536-001
Approach Terminals Any issue hereAnswerhellip YES
Third issuehellipldquoBarrier Setbackrdquo requirement likely not satisfied
per FDM Table 21542(5 feet or greater)hellip
Guardrail Index 536-001
Approach Terminals Any issue hereYES
Fourth issuehellipldquoTrailing Anchoragerdquo not properly extended downstream of hazard
25-foot Requirement SPI C1 amp lsquoLONrsquo Design Tool (Excel)hellip
Answerhellip
Guardrail Index 536-001
Approach Terminals Any issue hereYES
Fourth issuehellipldquoTrailing Anchoragerdquo not properly extended downstream of hazard
25-foot Requirement SPI C1 amp lsquoLONrsquo Design Tool (Excel)hellip
AnswerhellipFrom lsquoLength of Needrsquo Excel Sheethellip
Guardrail Index 536-001 Crash Cushion Index 544-001
Approach Terminals Solution 1lsquoCrash Cushionrsquobull ldquoSystem Widthrdquo ndash
lsquoWidersquo per SPI 544-001 Part C
bull ldquoLength Restrictionrdquo - per SPI 544-001 Part F
bull Contact Central Office for guidance
Note Define Crash Cushion with provided CADD cellhellipldquoSummary of Permanent Crash Cushions Tablerdquo
Guardrail Index 536-001 Crash Cushion Index 544-001
Approach Terminals Solution 1lsquoCrash Cushionrsquobull Guardrail ldquoreduced
post spacingrdquo to reduce required hazard setback per FDM Table 21542
bull Again contact Central Office for guidance for such limited space
Concrete Barrier Index 521-001 Crash Cushion 544-001
Approach Terminals Solution 2lsquoConcrete Barrierrsquo amp lsquoCrash Cushionrsquo
bull Requires project-specific design
bull Contact Central Office for guidance for such limited space
Questions
Richard Stepp PEStandard Plans Engineer
Central Office Roadway Design(850) 414-4313
richardsteppdotstateflus
Standard Plans Single-Slope Barriers
Guardrail Index 536-001
Shoulder Widens Any issue here
Answerhellip YESbull ldquoTaper Raterdquo requirement is violatedbull Per Standard Plans Instructions (SPI) Part I
bull Design Speed le 45 mph requires 110 Maxbull Design Speed gt 45mph requires 115 Max
Single Face to Double Face Any Issue
Guardrail Index 536-001 Sheet 9
Answerhellip
YES
bull ldquoTrailing Anchoragerdquo Standard is not used here (not detailed this way)
Index 536-001 does not show this as a Trailing Anchorage scenario and the details are not compatible or required
Single Face to Double Face Solution
Guardrail Index 536-001
Call for a Standard ldquoFlared End Unitrdquo (included with General Guardrail Pay Item) More guidance provided in next yearrsquos eBook
bull No ldquoTrailing Anchoragerdquo
bull Just call out Begin and End of guardrail types (on face closest to traveled way)
CRT System (Radial) Any issue here
Guardrail Index 536-001 Sheets 11 amp 12
AnswerhellipYES
First IssueObstruction is in the ldquoClear Area Limitrdquo per Standard Plans
(Controlled Release Terminal)
Guardrail Index 536-001 Sheets 11 amp 12
CRT System (Radial)AnswerhellipYES
First IssueObstruction is in the ldquoClear Area Limitrdquo per Standard Plans
Photo Credit Bill Fitzgerald PEKLS Engineering LLC
Guardrail Index 536-001 Sheets 11 amp 12
bull ldquoClear Areardquo Required (15rsquox30rsquo)
bull ldquoClear Areardquo is free of obstructions and has 12 Slope Max
CRT System (Radial) From Standard Planshellip
Guardrail Index 536-001 Sheets 11 amp 12
Requires 25-footlinear End TreatmentPer Standard Plans
(12rsquo-6rdquo Shown)
CRT System (Radial) Any other issue here
Guardrail Index 536-001 Sheets 11 amp 12
bull 25-foot linear End Treatment required
bull If this is not possible due limited space use a lsquovariationrsquo for General Radial Guardrail (Not CRT)(No breakaway posts)
CRT System (Radial) Per Standard Planshellip
Guardrail Index 536-001 Sheet 20
Pipe Rail Callouts Any issue hereAnswerhellip YES
Pipe Rail must terminate outside of End Treatments per SPI Part E and Standard PlansSolution
Guardrail Index 536-001 Sheets 13-15
Rigid Barrier Connections End Shielding
Guardrail Index 536-001 Sheets 13-15
Rigid Barrier Connection Any Issue HereAnswerhellip YES
asymp13 foot overlap with barrier is no longer Standard
(Overlap now only 7frac14rdquo Since FY2017-18 Standards for newsingle-faced guardrail)
Guardrail Index 536-001 Sheets 13-15
Rigid Barrier Connection Any Issues HereYES
asymp13 foot overlap with barrier is no longer Standard
(Overlap now only 7frac14rdquo Since FY2017-18 Standards for newsingle-faced guardrail)
Guardrail Index 536-001 Sheets 13-15
Rigid Barrier Connection Any Issues Here
Solution
YES
asymp13 foot overlap with barrier is no longer Standard
(Overlap now only 7frac14rdquo Since FY2017-18 Standards for newsingle-faced guardrail)
Guardrail Index 536-001 Sheets 7-8 13-14
Answerhellip
YES
Guardrail system ishellip
not long enough
Rigid Barrier Connection Any issue here
Minimum Length is Length of Approach Transition Connection lsquoLArsquoplus Length of End Treatment lsquoLErsquo
Guardrail Index 536-001 Sheets 7-8 13-14
Rigid Barrier End Shielding Min Length TL-2
lsquoLArsquo 213rsquo
+lsquoLErsquo 406rsquo
=
62rsquo
Guardrail Index 536-001 Sheets 7-8 13-14
Rigid Barrier End Shielding Min Length TL-2
lsquoLArsquo 213rsquo
+lsquoLErsquo 406rsquo
=
62rsquo
Guardrail Index 536-001 Sheets 7-8 13-14
Rigid Barrier End Shielding Min Length TL-3
lsquoLArsquo 306rsquo
+lsquoLErsquo 531rsquo
=
84rsquo
Guardrail Index 536-001 Sheets 7-8 13-14
Rigid Barrier End Shielding Min Length TL-3
lsquoLArsquo 306rsquo
+lsquoLErsquo 531rsquo
=
84rsquoNOTE If these lengths are not possible due to limited space consider the use of a Crash Cushion or a project-specific lsquovariationrsquo to fit the best barrier system possible
Contact Central Office for assistance
Guardrail Index 536-001 Sheets 7-8
Approach Terminals
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Any issues hereAnswerhellip YES
1 Flared terminals not permitted per RDB18-02
2 Curbed conditions require parallel Approach Terminals per Standard Plans ampSPI Part C3 Approach Terminals require lsquoType Ersquo Curb
Guardrail Index 536-001 Sheets 7-8
Approach Terminals
From Standard Planshellip
Answerhellip YES
1 Flared terminals not permitted per RDB18-02
2 Curbed conditions require parallel Approach Terminals per Standard Plans ampSPI Part C3 Approach Terminals require lsquoType Ersquo Curb
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Solution
1 Flared terminals not permitted per RDB18-02
2 Curbed conditions require parallel Approach Terminals per Standard Plans
3 Approach Terminals require lsquoType Ersquo Curb
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Any issues hereYES Wrong
First issuehellipFront slope break should be 6 feet behind guardrail face at post 1 per the Standards (110 Max)
Second issuehellipMisc Asphalt should extend 10 feet upstream of post 1 per Standards
Answerhellip
Guardrail Index 536-001 Sheets 7-8
Approach TerminalsYES Wrong
First issuehellipFront slope break should be 6 feet behind guardrail face at post 1 per the Standards (110 Min)
Second issuehellipMisc Asphalt should extend 10 feet upstream of post 1 per Standards
Answerhellip
From Standard Planshellip
Guardrail Index 536-001 Sheets 7-8
Approach TerminalsYES Wrong
First issuehellipFront slope break should be 6 feet behind guardrail face at post 1 per the Standards (110 Min)
Second issuehellipMisc Asphalt should extend 10 feet upstream of post 1 per Standards
Answerhellip
Example of Poor Slope Break Location (and steep slope not shielded)
Photo Credit Bill Fitzgerald PE
Guardrail Index 536-001 Sheets 7-8
Approach TerminalsYES Wrong
First issuehellipFront slope break should be 6 feet behind guardrail face at post 1 per the Standards (110 Min)
Second issuehellipMisc Asphalt should extend 10 feet upstream of post 1 per Standards
Answerhellip
Example of Poor Grading (The reason for Misc Asphalt requirement)
Photo Credit Bill Fitzgerald PE
Guardrail Index 536-001 Sheets 7-8
Approach Terminals SolutionYES Wrong
First issuehellipFront slope break should be 6 feet behind guardrail face at post 1 per the Standards (110 Min)
Second issuehellipMisc Asphalt should extend 10 feet upstream of post 1 per Standards
Answerhellip
Correctedhellip
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Any issues hereYES Wrong
First issuehellipTrees are within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
Second issuehellipTree violates barrier setback per FDM Table 21542
Answerhellip
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Any issues hereYES Wrong
First issuehellipTrees are within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
Second issuehellipTree violates barrier setback per FDM Table 21542
Answerhellip
Guardrail Index 536-001 Sheets 7-8
Approach TerminalsYES Wrong
First issuehellipTrees are within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
From Standard Planshellip
Guardrail Index 536-001 Sheets 7-8
Approach Terminals
CREDIT VIRGINIA DOT ndash SKT Crash Test Published October 2016
httpswwwyoutubecomwatchv=OsKlfatcjogampfeature=youtube
httpswwwyoutubecomwatchv=h7tct7Oo9-8ampfeature=youtube
YES Wrong
First issuehellipTrees are within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
Guardrail Index 536-001 Sheets 7-8
Approach Terminals
CREDIT VIRGINIA DOT ndash SKT Crash Test Published October 2016
httpswwwyoutubecomwatchv=74ImLTY-PhUampfeature=youtube
YES Wrong
First issuehellipTrees are within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
Guardrail Index 536-001 Sheets 7-8
Approach TerminalsYES Wrong
First issuehellipTrees are within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
From Standard Planshellip
Guardrail Index 536-001
YES Wrong
Second issuehellipTree violates barrier setback per FDM Table 21542
Guardrail Index 536-001
YES Wrong
Second issuehellipTree violates barrier setback per FDM Table 21542
From FDMhellip
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Any issue hereYES Wrong
First issuehellipPerpendicular guardrail is not proven crashworthybull No end treatmentsbull Violates ldquotaper raterdquo
requirements of SPI Part I (big time)
bull Requires shielding if within Clear Zone
Answerhellip
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Any issue hereYES Wrong
Second issuehellipPerpendicular guardrail within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Any issue hereYES Wrong
Third issuehellipPerpendicular guardrail violates barrier setback per FDM Table 21542
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Solution 1
REMOVE theperpendicularGuardrail
Orhellip
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Solution 2
1 Extend Guardrail to meet Length of Need per SPI Part B (Excel lsquoDesign Toolrsquo) which is Roadside Design Guide Eq 5-3
2 Meet minimum barrier setback per FDM Table 21542 (5 feet for general guardrail)
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Final Case StudyAssumptionsbull Design Speed
50 mph
bull Piers designed to withstand 600 kip impact load per FDM215454(Pier Protection Barrier notRequired)
Guardrail Index 536-001
Approach Terminals Any issue hereAnswerhellip YES
First issuehellipPiers NOT shielded
ldquoLength of Needrdquo NOT met per SPI Part B (Excel Design Tool)
Guardrail Index 536-001
Approach Terminals Any issue hereAnswerhellip YES
First issuehellipPiers NOT shielded
ldquoLength of Needrdquo NOT met per SPI Part B (Excel Design Tool)
Piers are behind the ldquogatingrdquo(break-away) portion of Approach Terminal
Guardrail Index 536-001
Approach Terminals Any issue hereYES
Second issuehellipFlared Terminal usage on hold per RDB18-02
Regardlesshellip ldquoTaper Raterdquo too steep here at Approach Terminal (about 13 shown)
Guardrail requires 115 Max Taper Rate per SPI Part I
Guardrail Index 536-001
Approach Terminals Any issue hereAnswerhellip YES
Third issuehellipldquoBarrier Setbackrdquo requirement likely not satisfied
per FDM Table 21542(5 feet or greater)hellip
Guardrail Index 536-001
Approach Terminals Any issue hereYES
Fourth issuehellipldquoTrailing Anchoragerdquo not properly extended downstream of hazard
25-foot Requirement SPI C1 amp lsquoLONrsquo Design Tool (Excel)hellip
Answerhellip
Guardrail Index 536-001
Approach Terminals Any issue hereYES
Fourth issuehellipldquoTrailing Anchoragerdquo not properly extended downstream of hazard
25-foot Requirement SPI C1 amp lsquoLONrsquo Design Tool (Excel)hellip
AnswerhellipFrom lsquoLength of Needrsquo Excel Sheethellip
Guardrail Index 536-001 Crash Cushion Index 544-001
Approach Terminals Solution 1lsquoCrash Cushionrsquobull ldquoSystem Widthrdquo ndash
lsquoWidersquo per SPI 544-001 Part C
bull ldquoLength Restrictionrdquo - per SPI 544-001 Part F
bull Contact Central Office for guidance
Note Define Crash Cushion with provided CADD cellhellipldquoSummary of Permanent Crash Cushions Tablerdquo
Guardrail Index 536-001 Crash Cushion Index 544-001
Approach Terminals Solution 1lsquoCrash Cushionrsquobull Guardrail ldquoreduced
post spacingrdquo to reduce required hazard setback per FDM Table 21542
bull Again contact Central Office for guidance for such limited space
Concrete Barrier Index 521-001 Crash Cushion 544-001
Approach Terminals Solution 2lsquoConcrete Barrierrsquo amp lsquoCrash Cushionrsquo
bull Requires project-specific design
bull Contact Central Office for guidance for such limited space
Questions
Richard Stepp PEStandard Plans Engineer
Central Office Roadway Design(850) 414-4313
richardsteppdotstateflus
Standard Plans Single-Slope Barriers
Single Face to Double Face Any Issue
Guardrail Index 536-001 Sheet 9
Answerhellip
YES
bull ldquoTrailing Anchoragerdquo Standard is not used here (not detailed this way)
Index 536-001 does not show this as a Trailing Anchorage scenario and the details are not compatible or required
Single Face to Double Face Solution
Guardrail Index 536-001
Call for a Standard ldquoFlared End Unitrdquo (included with General Guardrail Pay Item) More guidance provided in next yearrsquos eBook
bull No ldquoTrailing Anchoragerdquo
bull Just call out Begin and End of guardrail types (on face closest to traveled way)
CRT System (Radial) Any issue here
Guardrail Index 536-001 Sheets 11 amp 12
AnswerhellipYES
First IssueObstruction is in the ldquoClear Area Limitrdquo per Standard Plans
(Controlled Release Terminal)
Guardrail Index 536-001 Sheets 11 amp 12
CRT System (Radial)AnswerhellipYES
First IssueObstruction is in the ldquoClear Area Limitrdquo per Standard Plans
Photo Credit Bill Fitzgerald PEKLS Engineering LLC
Guardrail Index 536-001 Sheets 11 amp 12
bull ldquoClear Areardquo Required (15rsquox30rsquo)
bull ldquoClear Areardquo is free of obstructions and has 12 Slope Max
CRT System (Radial) From Standard Planshellip
Guardrail Index 536-001 Sheets 11 amp 12
Requires 25-footlinear End TreatmentPer Standard Plans
(12rsquo-6rdquo Shown)
CRT System (Radial) Any other issue here
Guardrail Index 536-001 Sheets 11 amp 12
bull 25-foot linear End Treatment required
bull If this is not possible due limited space use a lsquovariationrsquo for General Radial Guardrail (Not CRT)(No breakaway posts)
CRT System (Radial) Per Standard Planshellip
Guardrail Index 536-001 Sheet 20
Pipe Rail Callouts Any issue hereAnswerhellip YES
Pipe Rail must terminate outside of End Treatments per SPI Part E and Standard PlansSolution
Guardrail Index 536-001 Sheets 13-15
Rigid Barrier Connections End Shielding
Guardrail Index 536-001 Sheets 13-15
Rigid Barrier Connection Any Issue HereAnswerhellip YES
asymp13 foot overlap with barrier is no longer Standard
(Overlap now only 7frac14rdquo Since FY2017-18 Standards for newsingle-faced guardrail)
Guardrail Index 536-001 Sheets 13-15
Rigid Barrier Connection Any Issues HereYES
asymp13 foot overlap with barrier is no longer Standard
(Overlap now only 7frac14rdquo Since FY2017-18 Standards for newsingle-faced guardrail)
Guardrail Index 536-001 Sheets 13-15
Rigid Barrier Connection Any Issues Here
Solution
YES
asymp13 foot overlap with barrier is no longer Standard
(Overlap now only 7frac14rdquo Since FY2017-18 Standards for newsingle-faced guardrail)
Guardrail Index 536-001 Sheets 7-8 13-14
Answerhellip
YES
Guardrail system ishellip
not long enough
Rigid Barrier Connection Any issue here
Minimum Length is Length of Approach Transition Connection lsquoLArsquoplus Length of End Treatment lsquoLErsquo
Guardrail Index 536-001 Sheets 7-8 13-14
Rigid Barrier End Shielding Min Length TL-2
lsquoLArsquo 213rsquo
+lsquoLErsquo 406rsquo
=
62rsquo
Guardrail Index 536-001 Sheets 7-8 13-14
Rigid Barrier End Shielding Min Length TL-2
lsquoLArsquo 213rsquo
+lsquoLErsquo 406rsquo
=
62rsquo
Guardrail Index 536-001 Sheets 7-8 13-14
Rigid Barrier End Shielding Min Length TL-3
lsquoLArsquo 306rsquo
+lsquoLErsquo 531rsquo
=
84rsquo
Guardrail Index 536-001 Sheets 7-8 13-14
Rigid Barrier End Shielding Min Length TL-3
lsquoLArsquo 306rsquo
+lsquoLErsquo 531rsquo
=
84rsquoNOTE If these lengths are not possible due to limited space consider the use of a Crash Cushion or a project-specific lsquovariationrsquo to fit the best barrier system possible
Contact Central Office for assistance
Guardrail Index 536-001 Sheets 7-8
Approach Terminals
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Any issues hereAnswerhellip YES
1 Flared terminals not permitted per RDB18-02
2 Curbed conditions require parallel Approach Terminals per Standard Plans ampSPI Part C3 Approach Terminals require lsquoType Ersquo Curb
Guardrail Index 536-001 Sheets 7-8
Approach Terminals
From Standard Planshellip
Answerhellip YES
1 Flared terminals not permitted per RDB18-02
2 Curbed conditions require parallel Approach Terminals per Standard Plans ampSPI Part C3 Approach Terminals require lsquoType Ersquo Curb
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Solution
1 Flared terminals not permitted per RDB18-02
2 Curbed conditions require parallel Approach Terminals per Standard Plans
3 Approach Terminals require lsquoType Ersquo Curb
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Any issues hereYES Wrong
First issuehellipFront slope break should be 6 feet behind guardrail face at post 1 per the Standards (110 Max)
Second issuehellipMisc Asphalt should extend 10 feet upstream of post 1 per Standards
Answerhellip
Guardrail Index 536-001 Sheets 7-8
Approach TerminalsYES Wrong
First issuehellipFront slope break should be 6 feet behind guardrail face at post 1 per the Standards (110 Min)
Second issuehellipMisc Asphalt should extend 10 feet upstream of post 1 per Standards
Answerhellip
From Standard Planshellip
Guardrail Index 536-001 Sheets 7-8
Approach TerminalsYES Wrong
First issuehellipFront slope break should be 6 feet behind guardrail face at post 1 per the Standards (110 Min)
Second issuehellipMisc Asphalt should extend 10 feet upstream of post 1 per Standards
Answerhellip
Example of Poor Slope Break Location (and steep slope not shielded)
Photo Credit Bill Fitzgerald PE
Guardrail Index 536-001 Sheets 7-8
Approach TerminalsYES Wrong
First issuehellipFront slope break should be 6 feet behind guardrail face at post 1 per the Standards (110 Min)
Second issuehellipMisc Asphalt should extend 10 feet upstream of post 1 per Standards
Answerhellip
Example of Poor Grading (The reason for Misc Asphalt requirement)
Photo Credit Bill Fitzgerald PE
Guardrail Index 536-001 Sheets 7-8
Approach Terminals SolutionYES Wrong
First issuehellipFront slope break should be 6 feet behind guardrail face at post 1 per the Standards (110 Min)
Second issuehellipMisc Asphalt should extend 10 feet upstream of post 1 per Standards
Answerhellip
Correctedhellip
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Any issues hereYES Wrong
First issuehellipTrees are within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
Second issuehellipTree violates barrier setback per FDM Table 21542
Answerhellip
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Any issues hereYES Wrong
First issuehellipTrees are within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
Second issuehellipTree violates barrier setback per FDM Table 21542
Answerhellip
Guardrail Index 536-001 Sheets 7-8
Approach TerminalsYES Wrong
First issuehellipTrees are within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
From Standard Planshellip
Guardrail Index 536-001 Sheets 7-8
Approach Terminals
CREDIT VIRGINIA DOT ndash SKT Crash Test Published October 2016
httpswwwyoutubecomwatchv=OsKlfatcjogampfeature=youtube
httpswwwyoutubecomwatchv=h7tct7Oo9-8ampfeature=youtube
YES Wrong
First issuehellipTrees are within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
Guardrail Index 536-001 Sheets 7-8
Approach Terminals
CREDIT VIRGINIA DOT ndash SKT Crash Test Published October 2016
httpswwwyoutubecomwatchv=74ImLTY-PhUampfeature=youtube
YES Wrong
First issuehellipTrees are within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
Guardrail Index 536-001 Sheets 7-8
Approach TerminalsYES Wrong
First issuehellipTrees are within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
From Standard Planshellip
Guardrail Index 536-001
YES Wrong
Second issuehellipTree violates barrier setback per FDM Table 21542
Guardrail Index 536-001
YES Wrong
Second issuehellipTree violates barrier setback per FDM Table 21542
From FDMhellip
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Any issue hereYES Wrong
First issuehellipPerpendicular guardrail is not proven crashworthybull No end treatmentsbull Violates ldquotaper raterdquo
requirements of SPI Part I (big time)
bull Requires shielding if within Clear Zone
Answerhellip
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Any issue hereYES Wrong
Second issuehellipPerpendicular guardrail within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Any issue hereYES Wrong
Third issuehellipPerpendicular guardrail violates barrier setback per FDM Table 21542
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Solution 1
REMOVE theperpendicularGuardrail
Orhellip
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Solution 2
1 Extend Guardrail to meet Length of Need per SPI Part B (Excel lsquoDesign Toolrsquo) which is Roadside Design Guide Eq 5-3
2 Meet minimum barrier setback per FDM Table 21542 (5 feet for general guardrail)
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Final Case StudyAssumptionsbull Design Speed
50 mph
bull Piers designed to withstand 600 kip impact load per FDM215454(Pier Protection Barrier notRequired)
Guardrail Index 536-001
Approach Terminals Any issue hereAnswerhellip YES
First issuehellipPiers NOT shielded
ldquoLength of Needrdquo NOT met per SPI Part B (Excel Design Tool)
Guardrail Index 536-001
Approach Terminals Any issue hereAnswerhellip YES
First issuehellipPiers NOT shielded
ldquoLength of Needrdquo NOT met per SPI Part B (Excel Design Tool)
Piers are behind the ldquogatingrdquo(break-away) portion of Approach Terminal
Guardrail Index 536-001
Approach Terminals Any issue hereYES
Second issuehellipFlared Terminal usage on hold per RDB18-02
Regardlesshellip ldquoTaper Raterdquo too steep here at Approach Terminal (about 13 shown)
Guardrail requires 115 Max Taper Rate per SPI Part I
Guardrail Index 536-001
Approach Terminals Any issue hereAnswerhellip YES
Third issuehellipldquoBarrier Setbackrdquo requirement likely not satisfied
per FDM Table 21542(5 feet or greater)hellip
Guardrail Index 536-001
Approach Terminals Any issue hereYES
Fourth issuehellipldquoTrailing Anchoragerdquo not properly extended downstream of hazard
25-foot Requirement SPI C1 amp lsquoLONrsquo Design Tool (Excel)hellip
Answerhellip
Guardrail Index 536-001
Approach Terminals Any issue hereYES
Fourth issuehellipldquoTrailing Anchoragerdquo not properly extended downstream of hazard
25-foot Requirement SPI C1 amp lsquoLONrsquo Design Tool (Excel)hellip
AnswerhellipFrom lsquoLength of Needrsquo Excel Sheethellip
Guardrail Index 536-001 Crash Cushion Index 544-001
Approach Terminals Solution 1lsquoCrash Cushionrsquobull ldquoSystem Widthrdquo ndash
lsquoWidersquo per SPI 544-001 Part C
bull ldquoLength Restrictionrdquo - per SPI 544-001 Part F
bull Contact Central Office for guidance
Note Define Crash Cushion with provided CADD cellhellipldquoSummary of Permanent Crash Cushions Tablerdquo
Guardrail Index 536-001 Crash Cushion Index 544-001
Approach Terminals Solution 1lsquoCrash Cushionrsquobull Guardrail ldquoreduced
post spacingrdquo to reduce required hazard setback per FDM Table 21542
bull Again contact Central Office for guidance for such limited space
Concrete Barrier Index 521-001 Crash Cushion 544-001
Approach Terminals Solution 2lsquoConcrete Barrierrsquo amp lsquoCrash Cushionrsquo
bull Requires project-specific design
bull Contact Central Office for guidance for such limited space
Questions
Richard Stepp PEStandard Plans Engineer
Central Office Roadway Design(850) 414-4313
richardsteppdotstateflus
Standard Plans Single-Slope Barriers
Single Face to Double Face Solution
Guardrail Index 536-001
Call for a Standard ldquoFlared End Unitrdquo (included with General Guardrail Pay Item) More guidance provided in next yearrsquos eBook
bull No ldquoTrailing Anchoragerdquo
bull Just call out Begin and End of guardrail types (on face closest to traveled way)
CRT System (Radial) Any issue here
Guardrail Index 536-001 Sheets 11 amp 12
AnswerhellipYES
First IssueObstruction is in the ldquoClear Area Limitrdquo per Standard Plans
(Controlled Release Terminal)
Guardrail Index 536-001 Sheets 11 amp 12
CRT System (Radial)AnswerhellipYES
First IssueObstruction is in the ldquoClear Area Limitrdquo per Standard Plans
Photo Credit Bill Fitzgerald PEKLS Engineering LLC
Guardrail Index 536-001 Sheets 11 amp 12
bull ldquoClear Areardquo Required (15rsquox30rsquo)
bull ldquoClear Areardquo is free of obstructions and has 12 Slope Max
CRT System (Radial) From Standard Planshellip
Guardrail Index 536-001 Sheets 11 amp 12
Requires 25-footlinear End TreatmentPer Standard Plans
(12rsquo-6rdquo Shown)
CRT System (Radial) Any other issue here
Guardrail Index 536-001 Sheets 11 amp 12
bull 25-foot linear End Treatment required
bull If this is not possible due limited space use a lsquovariationrsquo for General Radial Guardrail (Not CRT)(No breakaway posts)
CRT System (Radial) Per Standard Planshellip
Guardrail Index 536-001 Sheet 20
Pipe Rail Callouts Any issue hereAnswerhellip YES
Pipe Rail must terminate outside of End Treatments per SPI Part E and Standard PlansSolution
Guardrail Index 536-001 Sheets 13-15
Rigid Barrier Connections End Shielding
Guardrail Index 536-001 Sheets 13-15
Rigid Barrier Connection Any Issue HereAnswerhellip YES
asymp13 foot overlap with barrier is no longer Standard
(Overlap now only 7frac14rdquo Since FY2017-18 Standards for newsingle-faced guardrail)
Guardrail Index 536-001 Sheets 13-15
Rigid Barrier Connection Any Issues HereYES
asymp13 foot overlap with barrier is no longer Standard
(Overlap now only 7frac14rdquo Since FY2017-18 Standards for newsingle-faced guardrail)
Guardrail Index 536-001 Sheets 13-15
Rigid Barrier Connection Any Issues Here
Solution
YES
asymp13 foot overlap with barrier is no longer Standard
(Overlap now only 7frac14rdquo Since FY2017-18 Standards for newsingle-faced guardrail)
Guardrail Index 536-001 Sheets 7-8 13-14
Answerhellip
YES
Guardrail system ishellip
not long enough
Rigid Barrier Connection Any issue here
Minimum Length is Length of Approach Transition Connection lsquoLArsquoplus Length of End Treatment lsquoLErsquo
Guardrail Index 536-001 Sheets 7-8 13-14
Rigid Barrier End Shielding Min Length TL-2
lsquoLArsquo 213rsquo
+lsquoLErsquo 406rsquo
=
62rsquo
Guardrail Index 536-001 Sheets 7-8 13-14
Rigid Barrier End Shielding Min Length TL-2
lsquoLArsquo 213rsquo
+lsquoLErsquo 406rsquo
=
62rsquo
Guardrail Index 536-001 Sheets 7-8 13-14
Rigid Barrier End Shielding Min Length TL-3
lsquoLArsquo 306rsquo
+lsquoLErsquo 531rsquo
=
84rsquo
Guardrail Index 536-001 Sheets 7-8 13-14
Rigid Barrier End Shielding Min Length TL-3
lsquoLArsquo 306rsquo
+lsquoLErsquo 531rsquo
=
84rsquoNOTE If these lengths are not possible due to limited space consider the use of a Crash Cushion or a project-specific lsquovariationrsquo to fit the best barrier system possible
Contact Central Office for assistance
Guardrail Index 536-001 Sheets 7-8
Approach Terminals
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Any issues hereAnswerhellip YES
1 Flared terminals not permitted per RDB18-02
2 Curbed conditions require parallel Approach Terminals per Standard Plans ampSPI Part C3 Approach Terminals require lsquoType Ersquo Curb
Guardrail Index 536-001 Sheets 7-8
Approach Terminals
From Standard Planshellip
Answerhellip YES
1 Flared terminals not permitted per RDB18-02
2 Curbed conditions require parallel Approach Terminals per Standard Plans ampSPI Part C3 Approach Terminals require lsquoType Ersquo Curb
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Solution
1 Flared terminals not permitted per RDB18-02
2 Curbed conditions require parallel Approach Terminals per Standard Plans
3 Approach Terminals require lsquoType Ersquo Curb
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Any issues hereYES Wrong
First issuehellipFront slope break should be 6 feet behind guardrail face at post 1 per the Standards (110 Max)
Second issuehellipMisc Asphalt should extend 10 feet upstream of post 1 per Standards
Answerhellip
Guardrail Index 536-001 Sheets 7-8
Approach TerminalsYES Wrong
First issuehellipFront slope break should be 6 feet behind guardrail face at post 1 per the Standards (110 Min)
Second issuehellipMisc Asphalt should extend 10 feet upstream of post 1 per Standards
Answerhellip
From Standard Planshellip
Guardrail Index 536-001 Sheets 7-8
Approach TerminalsYES Wrong
First issuehellipFront slope break should be 6 feet behind guardrail face at post 1 per the Standards (110 Min)
Second issuehellipMisc Asphalt should extend 10 feet upstream of post 1 per Standards
Answerhellip
Example of Poor Slope Break Location (and steep slope not shielded)
Photo Credit Bill Fitzgerald PE
Guardrail Index 536-001 Sheets 7-8
Approach TerminalsYES Wrong
First issuehellipFront slope break should be 6 feet behind guardrail face at post 1 per the Standards (110 Min)
Second issuehellipMisc Asphalt should extend 10 feet upstream of post 1 per Standards
Answerhellip
Example of Poor Grading (The reason for Misc Asphalt requirement)
Photo Credit Bill Fitzgerald PE
Guardrail Index 536-001 Sheets 7-8
Approach Terminals SolutionYES Wrong
First issuehellipFront slope break should be 6 feet behind guardrail face at post 1 per the Standards (110 Min)
Second issuehellipMisc Asphalt should extend 10 feet upstream of post 1 per Standards
Answerhellip
Correctedhellip
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Any issues hereYES Wrong
First issuehellipTrees are within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
Second issuehellipTree violates barrier setback per FDM Table 21542
Answerhellip
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Any issues hereYES Wrong
First issuehellipTrees are within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
Second issuehellipTree violates barrier setback per FDM Table 21542
Answerhellip
Guardrail Index 536-001 Sheets 7-8
Approach TerminalsYES Wrong
First issuehellipTrees are within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
From Standard Planshellip
Guardrail Index 536-001 Sheets 7-8
Approach Terminals
CREDIT VIRGINIA DOT ndash SKT Crash Test Published October 2016
httpswwwyoutubecomwatchv=OsKlfatcjogampfeature=youtube
httpswwwyoutubecomwatchv=h7tct7Oo9-8ampfeature=youtube
YES Wrong
First issuehellipTrees are within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
Guardrail Index 536-001 Sheets 7-8
Approach Terminals
CREDIT VIRGINIA DOT ndash SKT Crash Test Published October 2016
httpswwwyoutubecomwatchv=74ImLTY-PhUampfeature=youtube
YES Wrong
First issuehellipTrees are within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
Guardrail Index 536-001 Sheets 7-8
Approach TerminalsYES Wrong
First issuehellipTrees are within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
From Standard Planshellip
Guardrail Index 536-001
YES Wrong
Second issuehellipTree violates barrier setback per FDM Table 21542
Guardrail Index 536-001
YES Wrong
Second issuehellipTree violates barrier setback per FDM Table 21542
From FDMhellip
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Any issue hereYES Wrong
First issuehellipPerpendicular guardrail is not proven crashworthybull No end treatmentsbull Violates ldquotaper raterdquo
requirements of SPI Part I (big time)
bull Requires shielding if within Clear Zone
Answerhellip
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Any issue hereYES Wrong
Second issuehellipPerpendicular guardrail within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Any issue hereYES Wrong
Third issuehellipPerpendicular guardrail violates barrier setback per FDM Table 21542
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Solution 1
REMOVE theperpendicularGuardrail
Orhellip
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Solution 2
1 Extend Guardrail to meet Length of Need per SPI Part B (Excel lsquoDesign Toolrsquo) which is Roadside Design Guide Eq 5-3
2 Meet minimum barrier setback per FDM Table 21542 (5 feet for general guardrail)
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Final Case StudyAssumptionsbull Design Speed
50 mph
bull Piers designed to withstand 600 kip impact load per FDM215454(Pier Protection Barrier notRequired)
Guardrail Index 536-001
Approach Terminals Any issue hereAnswerhellip YES
First issuehellipPiers NOT shielded
ldquoLength of Needrdquo NOT met per SPI Part B (Excel Design Tool)
Guardrail Index 536-001
Approach Terminals Any issue hereAnswerhellip YES
First issuehellipPiers NOT shielded
ldquoLength of Needrdquo NOT met per SPI Part B (Excel Design Tool)
Piers are behind the ldquogatingrdquo(break-away) portion of Approach Terminal
Guardrail Index 536-001
Approach Terminals Any issue hereYES
Second issuehellipFlared Terminal usage on hold per RDB18-02
Regardlesshellip ldquoTaper Raterdquo too steep here at Approach Terminal (about 13 shown)
Guardrail requires 115 Max Taper Rate per SPI Part I
Guardrail Index 536-001
Approach Terminals Any issue hereAnswerhellip YES
Third issuehellipldquoBarrier Setbackrdquo requirement likely not satisfied
per FDM Table 21542(5 feet or greater)hellip
Guardrail Index 536-001
Approach Terminals Any issue hereYES
Fourth issuehellipldquoTrailing Anchoragerdquo not properly extended downstream of hazard
25-foot Requirement SPI C1 amp lsquoLONrsquo Design Tool (Excel)hellip
Answerhellip
Guardrail Index 536-001
Approach Terminals Any issue hereYES
Fourth issuehellipldquoTrailing Anchoragerdquo not properly extended downstream of hazard
25-foot Requirement SPI C1 amp lsquoLONrsquo Design Tool (Excel)hellip
AnswerhellipFrom lsquoLength of Needrsquo Excel Sheethellip
Guardrail Index 536-001 Crash Cushion Index 544-001
Approach Terminals Solution 1lsquoCrash Cushionrsquobull ldquoSystem Widthrdquo ndash
lsquoWidersquo per SPI 544-001 Part C
bull ldquoLength Restrictionrdquo - per SPI 544-001 Part F
bull Contact Central Office for guidance
Note Define Crash Cushion with provided CADD cellhellipldquoSummary of Permanent Crash Cushions Tablerdquo
Guardrail Index 536-001 Crash Cushion Index 544-001
Approach Terminals Solution 1lsquoCrash Cushionrsquobull Guardrail ldquoreduced
post spacingrdquo to reduce required hazard setback per FDM Table 21542
bull Again contact Central Office for guidance for such limited space
Concrete Barrier Index 521-001 Crash Cushion 544-001
Approach Terminals Solution 2lsquoConcrete Barrierrsquo amp lsquoCrash Cushionrsquo
bull Requires project-specific design
bull Contact Central Office for guidance for such limited space
Questions
Richard Stepp PEStandard Plans Engineer
Central Office Roadway Design(850) 414-4313
richardsteppdotstateflus
Standard Plans Single-Slope Barriers
CRT System (Radial) Any issue here
Guardrail Index 536-001 Sheets 11 amp 12
AnswerhellipYES
First IssueObstruction is in the ldquoClear Area Limitrdquo per Standard Plans
(Controlled Release Terminal)
Guardrail Index 536-001 Sheets 11 amp 12
CRT System (Radial)AnswerhellipYES
First IssueObstruction is in the ldquoClear Area Limitrdquo per Standard Plans
Photo Credit Bill Fitzgerald PEKLS Engineering LLC
Guardrail Index 536-001 Sheets 11 amp 12
bull ldquoClear Areardquo Required (15rsquox30rsquo)
bull ldquoClear Areardquo is free of obstructions and has 12 Slope Max
CRT System (Radial) From Standard Planshellip
Guardrail Index 536-001 Sheets 11 amp 12
Requires 25-footlinear End TreatmentPer Standard Plans
(12rsquo-6rdquo Shown)
CRT System (Radial) Any other issue here
Guardrail Index 536-001 Sheets 11 amp 12
bull 25-foot linear End Treatment required
bull If this is not possible due limited space use a lsquovariationrsquo for General Radial Guardrail (Not CRT)(No breakaway posts)
CRT System (Radial) Per Standard Planshellip
Guardrail Index 536-001 Sheet 20
Pipe Rail Callouts Any issue hereAnswerhellip YES
Pipe Rail must terminate outside of End Treatments per SPI Part E and Standard PlansSolution
Guardrail Index 536-001 Sheets 13-15
Rigid Barrier Connections End Shielding
Guardrail Index 536-001 Sheets 13-15
Rigid Barrier Connection Any Issue HereAnswerhellip YES
asymp13 foot overlap with barrier is no longer Standard
(Overlap now only 7frac14rdquo Since FY2017-18 Standards for newsingle-faced guardrail)
Guardrail Index 536-001 Sheets 13-15
Rigid Barrier Connection Any Issues HereYES
asymp13 foot overlap with barrier is no longer Standard
(Overlap now only 7frac14rdquo Since FY2017-18 Standards for newsingle-faced guardrail)
Guardrail Index 536-001 Sheets 13-15
Rigid Barrier Connection Any Issues Here
Solution
YES
asymp13 foot overlap with barrier is no longer Standard
(Overlap now only 7frac14rdquo Since FY2017-18 Standards for newsingle-faced guardrail)
Guardrail Index 536-001 Sheets 7-8 13-14
Answerhellip
YES
Guardrail system ishellip
not long enough
Rigid Barrier Connection Any issue here
Minimum Length is Length of Approach Transition Connection lsquoLArsquoplus Length of End Treatment lsquoLErsquo
Guardrail Index 536-001 Sheets 7-8 13-14
Rigid Barrier End Shielding Min Length TL-2
lsquoLArsquo 213rsquo
+lsquoLErsquo 406rsquo
=
62rsquo
Guardrail Index 536-001 Sheets 7-8 13-14
Rigid Barrier End Shielding Min Length TL-2
lsquoLArsquo 213rsquo
+lsquoLErsquo 406rsquo
=
62rsquo
Guardrail Index 536-001 Sheets 7-8 13-14
Rigid Barrier End Shielding Min Length TL-3
lsquoLArsquo 306rsquo
+lsquoLErsquo 531rsquo
=
84rsquo
Guardrail Index 536-001 Sheets 7-8 13-14
Rigid Barrier End Shielding Min Length TL-3
lsquoLArsquo 306rsquo
+lsquoLErsquo 531rsquo
=
84rsquoNOTE If these lengths are not possible due to limited space consider the use of a Crash Cushion or a project-specific lsquovariationrsquo to fit the best barrier system possible
Contact Central Office for assistance
Guardrail Index 536-001 Sheets 7-8
Approach Terminals
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Any issues hereAnswerhellip YES
1 Flared terminals not permitted per RDB18-02
2 Curbed conditions require parallel Approach Terminals per Standard Plans ampSPI Part C3 Approach Terminals require lsquoType Ersquo Curb
Guardrail Index 536-001 Sheets 7-8
Approach Terminals
From Standard Planshellip
Answerhellip YES
1 Flared terminals not permitted per RDB18-02
2 Curbed conditions require parallel Approach Terminals per Standard Plans ampSPI Part C3 Approach Terminals require lsquoType Ersquo Curb
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Solution
1 Flared terminals not permitted per RDB18-02
2 Curbed conditions require parallel Approach Terminals per Standard Plans
3 Approach Terminals require lsquoType Ersquo Curb
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Any issues hereYES Wrong
First issuehellipFront slope break should be 6 feet behind guardrail face at post 1 per the Standards (110 Max)
Second issuehellipMisc Asphalt should extend 10 feet upstream of post 1 per Standards
Answerhellip
Guardrail Index 536-001 Sheets 7-8
Approach TerminalsYES Wrong
First issuehellipFront slope break should be 6 feet behind guardrail face at post 1 per the Standards (110 Min)
Second issuehellipMisc Asphalt should extend 10 feet upstream of post 1 per Standards
Answerhellip
From Standard Planshellip
Guardrail Index 536-001 Sheets 7-8
Approach TerminalsYES Wrong
First issuehellipFront slope break should be 6 feet behind guardrail face at post 1 per the Standards (110 Min)
Second issuehellipMisc Asphalt should extend 10 feet upstream of post 1 per Standards
Answerhellip
Example of Poor Slope Break Location (and steep slope not shielded)
Photo Credit Bill Fitzgerald PE
Guardrail Index 536-001 Sheets 7-8
Approach TerminalsYES Wrong
First issuehellipFront slope break should be 6 feet behind guardrail face at post 1 per the Standards (110 Min)
Second issuehellipMisc Asphalt should extend 10 feet upstream of post 1 per Standards
Answerhellip
Example of Poor Grading (The reason for Misc Asphalt requirement)
Photo Credit Bill Fitzgerald PE
Guardrail Index 536-001 Sheets 7-8
Approach Terminals SolutionYES Wrong
First issuehellipFront slope break should be 6 feet behind guardrail face at post 1 per the Standards (110 Min)
Second issuehellipMisc Asphalt should extend 10 feet upstream of post 1 per Standards
Answerhellip
Correctedhellip
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Any issues hereYES Wrong
First issuehellipTrees are within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
Second issuehellipTree violates barrier setback per FDM Table 21542
Answerhellip
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Any issues hereYES Wrong
First issuehellipTrees are within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
Second issuehellipTree violates barrier setback per FDM Table 21542
Answerhellip
Guardrail Index 536-001 Sheets 7-8
Approach TerminalsYES Wrong
First issuehellipTrees are within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
From Standard Planshellip
Guardrail Index 536-001 Sheets 7-8
Approach Terminals
CREDIT VIRGINIA DOT ndash SKT Crash Test Published October 2016
httpswwwyoutubecomwatchv=OsKlfatcjogampfeature=youtube
httpswwwyoutubecomwatchv=h7tct7Oo9-8ampfeature=youtube
YES Wrong
First issuehellipTrees are within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
Guardrail Index 536-001 Sheets 7-8
Approach Terminals
CREDIT VIRGINIA DOT ndash SKT Crash Test Published October 2016
httpswwwyoutubecomwatchv=74ImLTY-PhUampfeature=youtube
YES Wrong
First issuehellipTrees are within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
Guardrail Index 536-001 Sheets 7-8
Approach TerminalsYES Wrong
First issuehellipTrees are within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
From Standard Planshellip
Guardrail Index 536-001
YES Wrong
Second issuehellipTree violates barrier setback per FDM Table 21542
Guardrail Index 536-001
YES Wrong
Second issuehellipTree violates barrier setback per FDM Table 21542
From FDMhellip
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Any issue hereYES Wrong
First issuehellipPerpendicular guardrail is not proven crashworthybull No end treatmentsbull Violates ldquotaper raterdquo
requirements of SPI Part I (big time)
bull Requires shielding if within Clear Zone
Answerhellip
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Any issue hereYES Wrong
Second issuehellipPerpendicular guardrail within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Any issue hereYES Wrong
Third issuehellipPerpendicular guardrail violates barrier setback per FDM Table 21542
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Solution 1
REMOVE theperpendicularGuardrail
Orhellip
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Solution 2
1 Extend Guardrail to meet Length of Need per SPI Part B (Excel lsquoDesign Toolrsquo) which is Roadside Design Guide Eq 5-3
2 Meet minimum barrier setback per FDM Table 21542 (5 feet for general guardrail)
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Final Case StudyAssumptionsbull Design Speed
50 mph
bull Piers designed to withstand 600 kip impact load per FDM215454(Pier Protection Barrier notRequired)
Guardrail Index 536-001
Approach Terminals Any issue hereAnswerhellip YES
First issuehellipPiers NOT shielded
ldquoLength of Needrdquo NOT met per SPI Part B (Excel Design Tool)
Guardrail Index 536-001
Approach Terminals Any issue hereAnswerhellip YES
First issuehellipPiers NOT shielded
ldquoLength of Needrdquo NOT met per SPI Part B (Excel Design Tool)
Piers are behind the ldquogatingrdquo(break-away) portion of Approach Terminal
Guardrail Index 536-001
Approach Terminals Any issue hereYES
Second issuehellipFlared Terminal usage on hold per RDB18-02
Regardlesshellip ldquoTaper Raterdquo too steep here at Approach Terminal (about 13 shown)
Guardrail requires 115 Max Taper Rate per SPI Part I
Guardrail Index 536-001
Approach Terminals Any issue hereAnswerhellip YES
Third issuehellipldquoBarrier Setbackrdquo requirement likely not satisfied
per FDM Table 21542(5 feet or greater)hellip
Guardrail Index 536-001
Approach Terminals Any issue hereYES
Fourth issuehellipldquoTrailing Anchoragerdquo not properly extended downstream of hazard
25-foot Requirement SPI C1 amp lsquoLONrsquo Design Tool (Excel)hellip
Answerhellip
Guardrail Index 536-001
Approach Terminals Any issue hereYES
Fourth issuehellipldquoTrailing Anchoragerdquo not properly extended downstream of hazard
25-foot Requirement SPI C1 amp lsquoLONrsquo Design Tool (Excel)hellip
AnswerhellipFrom lsquoLength of Needrsquo Excel Sheethellip
Guardrail Index 536-001 Crash Cushion Index 544-001
Approach Terminals Solution 1lsquoCrash Cushionrsquobull ldquoSystem Widthrdquo ndash
lsquoWidersquo per SPI 544-001 Part C
bull ldquoLength Restrictionrdquo - per SPI 544-001 Part F
bull Contact Central Office for guidance
Note Define Crash Cushion with provided CADD cellhellipldquoSummary of Permanent Crash Cushions Tablerdquo
Guardrail Index 536-001 Crash Cushion Index 544-001
Approach Terminals Solution 1lsquoCrash Cushionrsquobull Guardrail ldquoreduced
post spacingrdquo to reduce required hazard setback per FDM Table 21542
bull Again contact Central Office for guidance for such limited space
Concrete Barrier Index 521-001 Crash Cushion 544-001
Approach Terminals Solution 2lsquoConcrete Barrierrsquo amp lsquoCrash Cushionrsquo
bull Requires project-specific design
bull Contact Central Office for guidance for such limited space
Questions
Richard Stepp PEStandard Plans Engineer
Central Office Roadway Design(850) 414-4313
richardsteppdotstateflus
Standard Plans Single-Slope Barriers
Guardrail Index 536-001 Sheets 11 amp 12
CRT System (Radial)AnswerhellipYES
First IssueObstruction is in the ldquoClear Area Limitrdquo per Standard Plans
Photo Credit Bill Fitzgerald PEKLS Engineering LLC
Guardrail Index 536-001 Sheets 11 amp 12
bull ldquoClear Areardquo Required (15rsquox30rsquo)
bull ldquoClear Areardquo is free of obstructions and has 12 Slope Max
CRT System (Radial) From Standard Planshellip
Guardrail Index 536-001 Sheets 11 amp 12
Requires 25-footlinear End TreatmentPer Standard Plans
(12rsquo-6rdquo Shown)
CRT System (Radial) Any other issue here
Guardrail Index 536-001 Sheets 11 amp 12
bull 25-foot linear End Treatment required
bull If this is not possible due limited space use a lsquovariationrsquo for General Radial Guardrail (Not CRT)(No breakaway posts)
CRT System (Radial) Per Standard Planshellip
Guardrail Index 536-001 Sheet 20
Pipe Rail Callouts Any issue hereAnswerhellip YES
Pipe Rail must terminate outside of End Treatments per SPI Part E and Standard PlansSolution
Guardrail Index 536-001 Sheets 13-15
Rigid Barrier Connections End Shielding
Guardrail Index 536-001 Sheets 13-15
Rigid Barrier Connection Any Issue HereAnswerhellip YES
asymp13 foot overlap with barrier is no longer Standard
(Overlap now only 7frac14rdquo Since FY2017-18 Standards for newsingle-faced guardrail)
Guardrail Index 536-001 Sheets 13-15
Rigid Barrier Connection Any Issues HereYES
asymp13 foot overlap with barrier is no longer Standard
(Overlap now only 7frac14rdquo Since FY2017-18 Standards for newsingle-faced guardrail)
Guardrail Index 536-001 Sheets 13-15
Rigid Barrier Connection Any Issues Here
Solution
YES
asymp13 foot overlap with barrier is no longer Standard
(Overlap now only 7frac14rdquo Since FY2017-18 Standards for newsingle-faced guardrail)
Guardrail Index 536-001 Sheets 7-8 13-14
Answerhellip
YES
Guardrail system ishellip
not long enough
Rigid Barrier Connection Any issue here
Minimum Length is Length of Approach Transition Connection lsquoLArsquoplus Length of End Treatment lsquoLErsquo
Guardrail Index 536-001 Sheets 7-8 13-14
Rigid Barrier End Shielding Min Length TL-2
lsquoLArsquo 213rsquo
+lsquoLErsquo 406rsquo
=
62rsquo
Guardrail Index 536-001 Sheets 7-8 13-14
Rigid Barrier End Shielding Min Length TL-2
lsquoLArsquo 213rsquo
+lsquoLErsquo 406rsquo
=
62rsquo
Guardrail Index 536-001 Sheets 7-8 13-14
Rigid Barrier End Shielding Min Length TL-3
lsquoLArsquo 306rsquo
+lsquoLErsquo 531rsquo
=
84rsquo
Guardrail Index 536-001 Sheets 7-8 13-14
Rigid Barrier End Shielding Min Length TL-3
lsquoLArsquo 306rsquo
+lsquoLErsquo 531rsquo
=
84rsquoNOTE If these lengths are not possible due to limited space consider the use of a Crash Cushion or a project-specific lsquovariationrsquo to fit the best barrier system possible
Contact Central Office for assistance
Guardrail Index 536-001 Sheets 7-8
Approach Terminals
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Any issues hereAnswerhellip YES
1 Flared terminals not permitted per RDB18-02
2 Curbed conditions require parallel Approach Terminals per Standard Plans ampSPI Part C3 Approach Terminals require lsquoType Ersquo Curb
Guardrail Index 536-001 Sheets 7-8
Approach Terminals
From Standard Planshellip
Answerhellip YES
1 Flared terminals not permitted per RDB18-02
2 Curbed conditions require parallel Approach Terminals per Standard Plans ampSPI Part C3 Approach Terminals require lsquoType Ersquo Curb
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Solution
1 Flared terminals not permitted per RDB18-02
2 Curbed conditions require parallel Approach Terminals per Standard Plans
3 Approach Terminals require lsquoType Ersquo Curb
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Any issues hereYES Wrong
First issuehellipFront slope break should be 6 feet behind guardrail face at post 1 per the Standards (110 Max)
Second issuehellipMisc Asphalt should extend 10 feet upstream of post 1 per Standards
Answerhellip
Guardrail Index 536-001 Sheets 7-8
Approach TerminalsYES Wrong
First issuehellipFront slope break should be 6 feet behind guardrail face at post 1 per the Standards (110 Min)
Second issuehellipMisc Asphalt should extend 10 feet upstream of post 1 per Standards
Answerhellip
From Standard Planshellip
Guardrail Index 536-001 Sheets 7-8
Approach TerminalsYES Wrong
First issuehellipFront slope break should be 6 feet behind guardrail face at post 1 per the Standards (110 Min)
Second issuehellipMisc Asphalt should extend 10 feet upstream of post 1 per Standards
Answerhellip
Example of Poor Slope Break Location (and steep slope not shielded)
Photo Credit Bill Fitzgerald PE
Guardrail Index 536-001 Sheets 7-8
Approach TerminalsYES Wrong
First issuehellipFront slope break should be 6 feet behind guardrail face at post 1 per the Standards (110 Min)
Second issuehellipMisc Asphalt should extend 10 feet upstream of post 1 per Standards
Answerhellip
Example of Poor Grading (The reason for Misc Asphalt requirement)
Photo Credit Bill Fitzgerald PE
Guardrail Index 536-001 Sheets 7-8
Approach Terminals SolutionYES Wrong
First issuehellipFront slope break should be 6 feet behind guardrail face at post 1 per the Standards (110 Min)
Second issuehellipMisc Asphalt should extend 10 feet upstream of post 1 per Standards
Answerhellip
Correctedhellip
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Any issues hereYES Wrong
First issuehellipTrees are within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
Second issuehellipTree violates barrier setback per FDM Table 21542
Answerhellip
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Any issues hereYES Wrong
First issuehellipTrees are within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
Second issuehellipTree violates barrier setback per FDM Table 21542
Answerhellip
Guardrail Index 536-001 Sheets 7-8
Approach TerminalsYES Wrong
First issuehellipTrees are within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
From Standard Planshellip
Guardrail Index 536-001 Sheets 7-8
Approach Terminals
CREDIT VIRGINIA DOT ndash SKT Crash Test Published October 2016
httpswwwyoutubecomwatchv=OsKlfatcjogampfeature=youtube
httpswwwyoutubecomwatchv=h7tct7Oo9-8ampfeature=youtube
YES Wrong
First issuehellipTrees are within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
Guardrail Index 536-001 Sheets 7-8
Approach Terminals
CREDIT VIRGINIA DOT ndash SKT Crash Test Published October 2016
httpswwwyoutubecomwatchv=74ImLTY-PhUampfeature=youtube
YES Wrong
First issuehellipTrees are within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
Guardrail Index 536-001 Sheets 7-8
Approach TerminalsYES Wrong
First issuehellipTrees are within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
From Standard Planshellip
Guardrail Index 536-001
YES Wrong
Second issuehellipTree violates barrier setback per FDM Table 21542
Guardrail Index 536-001
YES Wrong
Second issuehellipTree violates barrier setback per FDM Table 21542
From FDMhellip
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Any issue hereYES Wrong
First issuehellipPerpendicular guardrail is not proven crashworthybull No end treatmentsbull Violates ldquotaper raterdquo
requirements of SPI Part I (big time)
bull Requires shielding if within Clear Zone
Answerhellip
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Any issue hereYES Wrong
Second issuehellipPerpendicular guardrail within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Any issue hereYES Wrong
Third issuehellipPerpendicular guardrail violates barrier setback per FDM Table 21542
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Solution 1
REMOVE theperpendicularGuardrail
Orhellip
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Solution 2
1 Extend Guardrail to meet Length of Need per SPI Part B (Excel lsquoDesign Toolrsquo) which is Roadside Design Guide Eq 5-3
2 Meet minimum barrier setback per FDM Table 21542 (5 feet for general guardrail)
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Final Case StudyAssumptionsbull Design Speed
50 mph
bull Piers designed to withstand 600 kip impact load per FDM215454(Pier Protection Barrier notRequired)
Guardrail Index 536-001
Approach Terminals Any issue hereAnswerhellip YES
First issuehellipPiers NOT shielded
ldquoLength of Needrdquo NOT met per SPI Part B (Excel Design Tool)
Guardrail Index 536-001
Approach Terminals Any issue hereAnswerhellip YES
First issuehellipPiers NOT shielded
ldquoLength of Needrdquo NOT met per SPI Part B (Excel Design Tool)
Piers are behind the ldquogatingrdquo(break-away) portion of Approach Terminal
Guardrail Index 536-001
Approach Terminals Any issue hereYES
Second issuehellipFlared Terminal usage on hold per RDB18-02
Regardlesshellip ldquoTaper Raterdquo too steep here at Approach Terminal (about 13 shown)
Guardrail requires 115 Max Taper Rate per SPI Part I
Guardrail Index 536-001
Approach Terminals Any issue hereAnswerhellip YES
Third issuehellipldquoBarrier Setbackrdquo requirement likely not satisfied
per FDM Table 21542(5 feet or greater)hellip
Guardrail Index 536-001
Approach Terminals Any issue hereYES
Fourth issuehellipldquoTrailing Anchoragerdquo not properly extended downstream of hazard
25-foot Requirement SPI C1 amp lsquoLONrsquo Design Tool (Excel)hellip
Answerhellip
Guardrail Index 536-001
Approach Terminals Any issue hereYES
Fourth issuehellipldquoTrailing Anchoragerdquo not properly extended downstream of hazard
25-foot Requirement SPI C1 amp lsquoLONrsquo Design Tool (Excel)hellip
AnswerhellipFrom lsquoLength of Needrsquo Excel Sheethellip
Guardrail Index 536-001 Crash Cushion Index 544-001
Approach Terminals Solution 1lsquoCrash Cushionrsquobull ldquoSystem Widthrdquo ndash
lsquoWidersquo per SPI 544-001 Part C
bull ldquoLength Restrictionrdquo - per SPI 544-001 Part F
bull Contact Central Office for guidance
Note Define Crash Cushion with provided CADD cellhellipldquoSummary of Permanent Crash Cushions Tablerdquo
Guardrail Index 536-001 Crash Cushion Index 544-001
Approach Terminals Solution 1lsquoCrash Cushionrsquobull Guardrail ldquoreduced
post spacingrdquo to reduce required hazard setback per FDM Table 21542
bull Again contact Central Office for guidance for such limited space
Concrete Barrier Index 521-001 Crash Cushion 544-001
Approach Terminals Solution 2lsquoConcrete Barrierrsquo amp lsquoCrash Cushionrsquo
bull Requires project-specific design
bull Contact Central Office for guidance for such limited space
Questions
Richard Stepp PEStandard Plans Engineer
Central Office Roadway Design(850) 414-4313
richardsteppdotstateflus
Standard Plans Single-Slope Barriers
Guardrail Index 536-001 Sheets 11 amp 12
bull ldquoClear Areardquo Required (15rsquox30rsquo)
bull ldquoClear Areardquo is free of obstructions and has 12 Slope Max
CRT System (Radial) From Standard Planshellip
Guardrail Index 536-001 Sheets 11 amp 12
Requires 25-footlinear End TreatmentPer Standard Plans
(12rsquo-6rdquo Shown)
CRT System (Radial) Any other issue here
Guardrail Index 536-001 Sheets 11 amp 12
bull 25-foot linear End Treatment required
bull If this is not possible due limited space use a lsquovariationrsquo for General Radial Guardrail (Not CRT)(No breakaway posts)
CRT System (Radial) Per Standard Planshellip
Guardrail Index 536-001 Sheet 20
Pipe Rail Callouts Any issue hereAnswerhellip YES
Pipe Rail must terminate outside of End Treatments per SPI Part E and Standard PlansSolution
Guardrail Index 536-001 Sheets 13-15
Rigid Barrier Connections End Shielding
Guardrail Index 536-001 Sheets 13-15
Rigid Barrier Connection Any Issue HereAnswerhellip YES
asymp13 foot overlap with barrier is no longer Standard
(Overlap now only 7frac14rdquo Since FY2017-18 Standards for newsingle-faced guardrail)
Guardrail Index 536-001 Sheets 13-15
Rigid Barrier Connection Any Issues HereYES
asymp13 foot overlap with barrier is no longer Standard
(Overlap now only 7frac14rdquo Since FY2017-18 Standards for newsingle-faced guardrail)
Guardrail Index 536-001 Sheets 13-15
Rigid Barrier Connection Any Issues Here
Solution
YES
asymp13 foot overlap with barrier is no longer Standard
(Overlap now only 7frac14rdquo Since FY2017-18 Standards for newsingle-faced guardrail)
Guardrail Index 536-001 Sheets 7-8 13-14
Answerhellip
YES
Guardrail system ishellip
not long enough
Rigid Barrier Connection Any issue here
Minimum Length is Length of Approach Transition Connection lsquoLArsquoplus Length of End Treatment lsquoLErsquo
Guardrail Index 536-001 Sheets 7-8 13-14
Rigid Barrier End Shielding Min Length TL-2
lsquoLArsquo 213rsquo
+lsquoLErsquo 406rsquo
=
62rsquo
Guardrail Index 536-001 Sheets 7-8 13-14
Rigid Barrier End Shielding Min Length TL-2
lsquoLArsquo 213rsquo
+lsquoLErsquo 406rsquo
=
62rsquo
Guardrail Index 536-001 Sheets 7-8 13-14
Rigid Barrier End Shielding Min Length TL-3
lsquoLArsquo 306rsquo
+lsquoLErsquo 531rsquo
=
84rsquo
Guardrail Index 536-001 Sheets 7-8 13-14
Rigid Barrier End Shielding Min Length TL-3
lsquoLArsquo 306rsquo
+lsquoLErsquo 531rsquo
=
84rsquoNOTE If these lengths are not possible due to limited space consider the use of a Crash Cushion or a project-specific lsquovariationrsquo to fit the best barrier system possible
Contact Central Office for assistance
Guardrail Index 536-001 Sheets 7-8
Approach Terminals
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Any issues hereAnswerhellip YES
1 Flared terminals not permitted per RDB18-02
2 Curbed conditions require parallel Approach Terminals per Standard Plans ampSPI Part C3 Approach Terminals require lsquoType Ersquo Curb
Guardrail Index 536-001 Sheets 7-8
Approach Terminals
From Standard Planshellip
Answerhellip YES
1 Flared terminals not permitted per RDB18-02
2 Curbed conditions require parallel Approach Terminals per Standard Plans ampSPI Part C3 Approach Terminals require lsquoType Ersquo Curb
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Solution
1 Flared terminals not permitted per RDB18-02
2 Curbed conditions require parallel Approach Terminals per Standard Plans
3 Approach Terminals require lsquoType Ersquo Curb
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Any issues hereYES Wrong
First issuehellipFront slope break should be 6 feet behind guardrail face at post 1 per the Standards (110 Max)
Second issuehellipMisc Asphalt should extend 10 feet upstream of post 1 per Standards
Answerhellip
Guardrail Index 536-001 Sheets 7-8
Approach TerminalsYES Wrong
First issuehellipFront slope break should be 6 feet behind guardrail face at post 1 per the Standards (110 Min)
Second issuehellipMisc Asphalt should extend 10 feet upstream of post 1 per Standards
Answerhellip
From Standard Planshellip
Guardrail Index 536-001 Sheets 7-8
Approach TerminalsYES Wrong
First issuehellipFront slope break should be 6 feet behind guardrail face at post 1 per the Standards (110 Min)
Second issuehellipMisc Asphalt should extend 10 feet upstream of post 1 per Standards
Answerhellip
Example of Poor Slope Break Location (and steep slope not shielded)
Photo Credit Bill Fitzgerald PE
Guardrail Index 536-001 Sheets 7-8
Approach TerminalsYES Wrong
First issuehellipFront slope break should be 6 feet behind guardrail face at post 1 per the Standards (110 Min)
Second issuehellipMisc Asphalt should extend 10 feet upstream of post 1 per Standards
Answerhellip
Example of Poor Grading (The reason for Misc Asphalt requirement)
Photo Credit Bill Fitzgerald PE
Guardrail Index 536-001 Sheets 7-8
Approach Terminals SolutionYES Wrong
First issuehellipFront slope break should be 6 feet behind guardrail face at post 1 per the Standards (110 Min)
Second issuehellipMisc Asphalt should extend 10 feet upstream of post 1 per Standards
Answerhellip
Correctedhellip
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Any issues hereYES Wrong
First issuehellipTrees are within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
Second issuehellipTree violates barrier setback per FDM Table 21542
Answerhellip
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Any issues hereYES Wrong
First issuehellipTrees are within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
Second issuehellipTree violates barrier setback per FDM Table 21542
Answerhellip
Guardrail Index 536-001 Sheets 7-8
Approach TerminalsYES Wrong
First issuehellipTrees are within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
From Standard Planshellip
Guardrail Index 536-001 Sheets 7-8
Approach Terminals
CREDIT VIRGINIA DOT ndash SKT Crash Test Published October 2016
httpswwwyoutubecomwatchv=OsKlfatcjogampfeature=youtube
httpswwwyoutubecomwatchv=h7tct7Oo9-8ampfeature=youtube
YES Wrong
First issuehellipTrees are within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
Guardrail Index 536-001 Sheets 7-8
Approach Terminals
CREDIT VIRGINIA DOT ndash SKT Crash Test Published October 2016
httpswwwyoutubecomwatchv=74ImLTY-PhUampfeature=youtube
YES Wrong
First issuehellipTrees are within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
Guardrail Index 536-001 Sheets 7-8
Approach TerminalsYES Wrong
First issuehellipTrees are within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
From Standard Planshellip
Guardrail Index 536-001
YES Wrong
Second issuehellipTree violates barrier setback per FDM Table 21542
Guardrail Index 536-001
YES Wrong
Second issuehellipTree violates barrier setback per FDM Table 21542
From FDMhellip
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Any issue hereYES Wrong
First issuehellipPerpendicular guardrail is not proven crashworthybull No end treatmentsbull Violates ldquotaper raterdquo
requirements of SPI Part I (big time)
bull Requires shielding if within Clear Zone
Answerhellip
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Any issue hereYES Wrong
Second issuehellipPerpendicular guardrail within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Any issue hereYES Wrong
Third issuehellipPerpendicular guardrail violates barrier setback per FDM Table 21542
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Solution 1
REMOVE theperpendicularGuardrail
Orhellip
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Solution 2
1 Extend Guardrail to meet Length of Need per SPI Part B (Excel lsquoDesign Toolrsquo) which is Roadside Design Guide Eq 5-3
2 Meet minimum barrier setback per FDM Table 21542 (5 feet for general guardrail)
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Final Case StudyAssumptionsbull Design Speed
50 mph
bull Piers designed to withstand 600 kip impact load per FDM215454(Pier Protection Barrier notRequired)
Guardrail Index 536-001
Approach Terminals Any issue hereAnswerhellip YES
First issuehellipPiers NOT shielded
ldquoLength of Needrdquo NOT met per SPI Part B (Excel Design Tool)
Guardrail Index 536-001
Approach Terminals Any issue hereAnswerhellip YES
First issuehellipPiers NOT shielded
ldquoLength of Needrdquo NOT met per SPI Part B (Excel Design Tool)
Piers are behind the ldquogatingrdquo(break-away) portion of Approach Terminal
Guardrail Index 536-001
Approach Terminals Any issue hereYES
Second issuehellipFlared Terminal usage on hold per RDB18-02
Regardlesshellip ldquoTaper Raterdquo too steep here at Approach Terminal (about 13 shown)
Guardrail requires 115 Max Taper Rate per SPI Part I
Guardrail Index 536-001
Approach Terminals Any issue hereAnswerhellip YES
Third issuehellipldquoBarrier Setbackrdquo requirement likely not satisfied
per FDM Table 21542(5 feet or greater)hellip
Guardrail Index 536-001
Approach Terminals Any issue hereYES
Fourth issuehellipldquoTrailing Anchoragerdquo not properly extended downstream of hazard
25-foot Requirement SPI C1 amp lsquoLONrsquo Design Tool (Excel)hellip
Answerhellip
Guardrail Index 536-001
Approach Terminals Any issue hereYES
Fourth issuehellipldquoTrailing Anchoragerdquo not properly extended downstream of hazard
25-foot Requirement SPI C1 amp lsquoLONrsquo Design Tool (Excel)hellip
AnswerhellipFrom lsquoLength of Needrsquo Excel Sheethellip
Guardrail Index 536-001 Crash Cushion Index 544-001
Approach Terminals Solution 1lsquoCrash Cushionrsquobull ldquoSystem Widthrdquo ndash
lsquoWidersquo per SPI 544-001 Part C
bull ldquoLength Restrictionrdquo - per SPI 544-001 Part F
bull Contact Central Office for guidance
Note Define Crash Cushion with provided CADD cellhellipldquoSummary of Permanent Crash Cushions Tablerdquo
Guardrail Index 536-001 Crash Cushion Index 544-001
Approach Terminals Solution 1lsquoCrash Cushionrsquobull Guardrail ldquoreduced
post spacingrdquo to reduce required hazard setback per FDM Table 21542
bull Again contact Central Office for guidance for such limited space
Concrete Barrier Index 521-001 Crash Cushion 544-001
Approach Terminals Solution 2lsquoConcrete Barrierrsquo amp lsquoCrash Cushionrsquo
bull Requires project-specific design
bull Contact Central Office for guidance for such limited space
Questions
Richard Stepp PEStandard Plans Engineer
Central Office Roadway Design(850) 414-4313
richardsteppdotstateflus
Standard Plans Single-Slope Barriers
Guardrail Index 536-001 Sheets 11 amp 12
Requires 25-footlinear End TreatmentPer Standard Plans
(12rsquo-6rdquo Shown)
CRT System (Radial) Any other issue here
Guardrail Index 536-001 Sheets 11 amp 12
bull 25-foot linear End Treatment required
bull If this is not possible due limited space use a lsquovariationrsquo for General Radial Guardrail (Not CRT)(No breakaway posts)
CRT System (Radial) Per Standard Planshellip
Guardrail Index 536-001 Sheet 20
Pipe Rail Callouts Any issue hereAnswerhellip YES
Pipe Rail must terminate outside of End Treatments per SPI Part E and Standard PlansSolution
Guardrail Index 536-001 Sheets 13-15
Rigid Barrier Connections End Shielding
Guardrail Index 536-001 Sheets 13-15
Rigid Barrier Connection Any Issue HereAnswerhellip YES
asymp13 foot overlap with barrier is no longer Standard
(Overlap now only 7frac14rdquo Since FY2017-18 Standards for newsingle-faced guardrail)
Guardrail Index 536-001 Sheets 13-15
Rigid Barrier Connection Any Issues HereYES
asymp13 foot overlap with barrier is no longer Standard
(Overlap now only 7frac14rdquo Since FY2017-18 Standards for newsingle-faced guardrail)
Guardrail Index 536-001 Sheets 13-15
Rigid Barrier Connection Any Issues Here
Solution
YES
asymp13 foot overlap with barrier is no longer Standard
(Overlap now only 7frac14rdquo Since FY2017-18 Standards for newsingle-faced guardrail)
Guardrail Index 536-001 Sheets 7-8 13-14
Answerhellip
YES
Guardrail system ishellip
not long enough
Rigid Barrier Connection Any issue here
Minimum Length is Length of Approach Transition Connection lsquoLArsquoplus Length of End Treatment lsquoLErsquo
Guardrail Index 536-001 Sheets 7-8 13-14
Rigid Barrier End Shielding Min Length TL-2
lsquoLArsquo 213rsquo
+lsquoLErsquo 406rsquo
=
62rsquo
Guardrail Index 536-001 Sheets 7-8 13-14
Rigid Barrier End Shielding Min Length TL-2
lsquoLArsquo 213rsquo
+lsquoLErsquo 406rsquo
=
62rsquo
Guardrail Index 536-001 Sheets 7-8 13-14
Rigid Barrier End Shielding Min Length TL-3
lsquoLArsquo 306rsquo
+lsquoLErsquo 531rsquo
=
84rsquo
Guardrail Index 536-001 Sheets 7-8 13-14
Rigid Barrier End Shielding Min Length TL-3
lsquoLArsquo 306rsquo
+lsquoLErsquo 531rsquo
=
84rsquoNOTE If these lengths are not possible due to limited space consider the use of a Crash Cushion or a project-specific lsquovariationrsquo to fit the best barrier system possible
Contact Central Office for assistance
Guardrail Index 536-001 Sheets 7-8
Approach Terminals
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Any issues hereAnswerhellip YES
1 Flared terminals not permitted per RDB18-02
2 Curbed conditions require parallel Approach Terminals per Standard Plans ampSPI Part C3 Approach Terminals require lsquoType Ersquo Curb
Guardrail Index 536-001 Sheets 7-8
Approach Terminals
From Standard Planshellip
Answerhellip YES
1 Flared terminals not permitted per RDB18-02
2 Curbed conditions require parallel Approach Terminals per Standard Plans ampSPI Part C3 Approach Terminals require lsquoType Ersquo Curb
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Solution
1 Flared terminals not permitted per RDB18-02
2 Curbed conditions require parallel Approach Terminals per Standard Plans
3 Approach Terminals require lsquoType Ersquo Curb
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Any issues hereYES Wrong
First issuehellipFront slope break should be 6 feet behind guardrail face at post 1 per the Standards (110 Max)
Second issuehellipMisc Asphalt should extend 10 feet upstream of post 1 per Standards
Answerhellip
Guardrail Index 536-001 Sheets 7-8
Approach TerminalsYES Wrong
First issuehellipFront slope break should be 6 feet behind guardrail face at post 1 per the Standards (110 Min)
Second issuehellipMisc Asphalt should extend 10 feet upstream of post 1 per Standards
Answerhellip
From Standard Planshellip
Guardrail Index 536-001 Sheets 7-8
Approach TerminalsYES Wrong
First issuehellipFront slope break should be 6 feet behind guardrail face at post 1 per the Standards (110 Min)
Second issuehellipMisc Asphalt should extend 10 feet upstream of post 1 per Standards
Answerhellip
Example of Poor Slope Break Location (and steep slope not shielded)
Photo Credit Bill Fitzgerald PE
Guardrail Index 536-001 Sheets 7-8
Approach TerminalsYES Wrong
First issuehellipFront slope break should be 6 feet behind guardrail face at post 1 per the Standards (110 Min)
Second issuehellipMisc Asphalt should extend 10 feet upstream of post 1 per Standards
Answerhellip
Example of Poor Grading (The reason for Misc Asphalt requirement)
Photo Credit Bill Fitzgerald PE
Guardrail Index 536-001 Sheets 7-8
Approach Terminals SolutionYES Wrong
First issuehellipFront slope break should be 6 feet behind guardrail face at post 1 per the Standards (110 Min)
Second issuehellipMisc Asphalt should extend 10 feet upstream of post 1 per Standards
Answerhellip
Correctedhellip
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Any issues hereYES Wrong
First issuehellipTrees are within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
Second issuehellipTree violates barrier setback per FDM Table 21542
Answerhellip
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Any issues hereYES Wrong
First issuehellipTrees are within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
Second issuehellipTree violates barrier setback per FDM Table 21542
Answerhellip
Guardrail Index 536-001 Sheets 7-8
Approach TerminalsYES Wrong
First issuehellipTrees are within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
From Standard Planshellip
Guardrail Index 536-001 Sheets 7-8
Approach Terminals
CREDIT VIRGINIA DOT ndash SKT Crash Test Published October 2016
httpswwwyoutubecomwatchv=OsKlfatcjogampfeature=youtube
httpswwwyoutubecomwatchv=h7tct7Oo9-8ampfeature=youtube
YES Wrong
First issuehellipTrees are within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
Guardrail Index 536-001 Sheets 7-8
Approach Terminals
CREDIT VIRGINIA DOT ndash SKT Crash Test Published October 2016
httpswwwyoutubecomwatchv=74ImLTY-PhUampfeature=youtube
YES Wrong
First issuehellipTrees are within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
Guardrail Index 536-001 Sheets 7-8
Approach TerminalsYES Wrong
First issuehellipTrees are within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
From Standard Planshellip
Guardrail Index 536-001
YES Wrong
Second issuehellipTree violates barrier setback per FDM Table 21542
Guardrail Index 536-001
YES Wrong
Second issuehellipTree violates barrier setback per FDM Table 21542
From FDMhellip
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Any issue hereYES Wrong
First issuehellipPerpendicular guardrail is not proven crashworthybull No end treatmentsbull Violates ldquotaper raterdquo
requirements of SPI Part I (big time)
bull Requires shielding if within Clear Zone
Answerhellip
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Any issue hereYES Wrong
Second issuehellipPerpendicular guardrail within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Any issue hereYES Wrong
Third issuehellipPerpendicular guardrail violates barrier setback per FDM Table 21542
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Solution 1
REMOVE theperpendicularGuardrail
Orhellip
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Solution 2
1 Extend Guardrail to meet Length of Need per SPI Part B (Excel lsquoDesign Toolrsquo) which is Roadside Design Guide Eq 5-3
2 Meet minimum barrier setback per FDM Table 21542 (5 feet for general guardrail)
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Final Case StudyAssumptionsbull Design Speed
50 mph
bull Piers designed to withstand 600 kip impact load per FDM215454(Pier Protection Barrier notRequired)
Guardrail Index 536-001
Approach Terminals Any issue hereAnswerhellip YES
First issuehellipPiers NOT shielded
ldquoLength of Needrdquo NOT met per SPI Part B (Excel Design Tool)
Guardrail Index 536-001
Approach Terminals Any issue hereAnswerhellip YES
First issuehellipPiers NOT shielded
ldquoLength of Needrdquo NOT met per SPI Part B (Excel Design Tool)
Piers are behind the ldquogatingrdquo(break-away) portion of Approach Terminal
Guardrail Index 536-001
Approach Terminals Any issue hereYES
Second issuehellipFlared Terminal usage on hold per RDB18-02
Regardlesshellip ldquoTaper Raterdquo too steep here at Approach Terminal (about 13 shown)
Guardrail requires 115 Max Taper Rate per SPI Part I
Guardrail Index 536-001
Approach Terminals Any issue hereAnswerhellip YES
Third issuehellipldquoBarrier Setbackrdquo requirement likely not satisfied
per FDM Table 21542(5 feet or greater)hellip
Guardrail Index 536-001
Approach Terminals Any issue hereYES
Fourth issuehellipldquoTrailing Anchoragerdquo not properly extended downstream of hazard
25-foot Requirement SPI C1 amp lsquoLONrsquo Design Tool (Excel)hellip
Answerhellip
Guardrail Index 536-001
Approach Terminals Any issue hereYES
Fourth issuehellipldquoTrailing Anchoragerdquo not properly extended downstream of hazard
25-foot Requirement SPI C1 amp lsquoLONrsquo Design Tool (Excel)hellip
AnswerhellipFrom lsquoLength of Needrsquo Excel Sheethellip
Guardrail Index 536-001 Crash Cushion Index 544-001
Approach Terminals Solution 1lsquoCrash Cushionrsquobull ldquoSystem Widthrdquo ndash
lsquoWidersquo per SPI 544-001 Part C
bull ldquoLength Restrictionrdquo - per SPI 544-001 Part F
bull Contact Central Office for guidance
Note Define Crash Cushion with provided CADD cellhellipldquoSummary of Permanent Crash Cushions Tablerdquo
Guardrail Index 536-001 Crash Cushion Index 544-001
Approach Terminals Solution 1lsquoCrash Cushionrsquobull Guardrail ldquoreduced
post spacingrdquo to reduce required hazard setback per FDM Table 21542
bull Again contact Central Office for guidance for such limited space
Concrete Barrier Index 521-001 Crash Cushion 544-001
Approach Terminals Solution 2lsquoConcrete Barrierrsquo amp lsquoCrash Cushionrsquo
bull Requires project-specific design
bull Contact Central Office for guidance for such limited space
Questions
Richard Stepp PEStandard Plans Engineer
Central Office Roadway Design(850) 414-4313
richardsteppdotstateflus
Standard Plans Single-Slope Barriers
Guardrail Index 536-001 Sheets 11 amp 12
bull 25-foot linear End Treatment required
bull If this is not possible due limited space use a lsquovariationrsquo for General Radial Guardrail (Not CRT)(No breakaway posts)
CRT System (Radial) Per Standard Planshellip
Guardrail Index 536-001 Sheet 20
Pipe Rail Callouts Any issue hereAnswerhellip YES
Pipe Rail must terminate outside of End Treatments per SPI Part E and Standard PlansSolution
Guardrail Index 536-001 Sheets 13-15
Rigid Barrier Connections End Shielding
Guardrail Index 536-001 Sheets 13-15
Rigid Barrier Connection Any Issue HereAnswerhellip YES
asymp13 foot overlap with barrier is no longer Standard
(Overlap now only 7frac14rdquo Since FY2017-18 Standards for newsingle-faced guardrail)
Guardrail Index 536-001 Sheets 13-15
Rigid Barrier Connection Any Issues HereYES
asymp13 foot overlap with barrier is no longer Standard
(Overlap now only 7frac14rdquo Since FY2017-18 Standards for newsingle-faced guardrail)
Guardrail Index 536-001 Sheets 13-15
Rigid Barrier Connection Any Issues Here
Solution
YES
asymp13 foot overlap with barrier is no longer Standard
(Overlap now only 7frac14rdquo Since FY2017-18 Standards for newsingle-faced guardrail)
Guardrail Index 536-001 Sheets 7-8 13-14
Answerhellip
YES
Guardrail system ishellip
not long enough
Rigid Barrier Connection Any issue here
Minimum Length is Length of Approach Transition Connection lsquoLArsquoplus Length of End Treatment lsquoLErsquo
Guardrail Index 536-001 Sheets 7-8 13-14
Rigid Barrier End Shielding Min Length TL-2
lsquoLArsquo 213rsquo
+lsquoLErsquo 406rsquo
=
62rsquo
Guardrail Index 536-001 Sheets 7-8 13-14
Rigid Barrier End Shielding Min Length TL-2
lsquoLArsquo 213rsquo
+lsquoLErsquo 406rsquo
=
62rsquo
Guardrail Index 536-001 Sheets 7-8 13-14
Rigid Barrier End Shielding Min Length TL-3
lsquoLArsquo 306rsquo
+lsquoLErsquo 531rsquo
=
84rsquo
Guardrail Index 536-001 Sheets 7-8 13-14
Rigid Barrier End Shielding Min Length TL-3
lsquoLArsquo 306rsquo
+lsquoLErsquo 531rsquo
=
84rsquoNOTE If these lengths are not possible due to limited space consider the use of a Crash Cushion or a project-specific lsquovariationrsquo to fit the best barrier system possible
Contact Central Office for assistance
Guardrail Index 536-001 Sheets 7-8
Approach Terminals
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Any issues hereAnswerhellip YES
1 Flared terminals not permitted per RDB18-02
2 Curbed conditions require parallel Approach Terminals per Standard Plans ampSPI Part C3 Approach Terminals require lsquoType Ersquo Curb
Guardrail Index 536-001 Sheets 7-8
Approach Terminals
From Standard Planshellip
Answerhellip YES
1 Flared terminals not permitted per RDB18-02
2 Curbed conditions require parallel Approach Terminals per Standard Plans ampSPI Part C3 Approach Terminals require lsquoType Ersquo Curb
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Solution
1 Flared terminals not permitted per RDB18-02
2 Curbed conditions require parallel Approach Terminals per Standard Plans
3 Approach Terminals require lsquoType Ersquo Curb
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Any issues hereYES Wrong
First issuehellipFront slope break should be 6 feet behind guardrail face at post 1 per the Standards (110 Max)
Second issuehellipMisc Asphalt should extend 10 feet upstream of post 1 per Standards
Answerhellip
Guardrail Index 536-001 Sheets 7-8
Approach TerminalsYES Wrong
First issuehellipFront slope break should be 6 feet behind guardrail face at post 1 per the Standards (110 Min)
Second issuehellipMisc Asphalt should extend 10 feet upstream of post 1 per Standards
Answerhellip
From Standard Planshellip
Guardrail Index 536-001 Sheets 7-8
Approach TerminalsYES Wrong
First issuehellipFront slope break should be 6 feet behind guardrail face at post 1 per the Standards (110 Min)
Second issuehellipMisc Asphalt should extend 10 feet upstream of post 1 per Standards
Answerhellip
Example of Poor Slope Break Location (and steep slope not shielded)
Photo Credit Bill Fitzgerald PE
Guardrail Index 536-001 Sheets 7-8
Approach TerminalsYES Wrong
First issuehellipFront slope break should be 6 feet behind guardrail face at post 1 per the Standards (110 Min)
Second issuehellipMisc Asphalt should extend 10 feet upstream of post 1 per Standards
Answerhellip
Example of Poor Grading (The reason for Misc Asphalt requirement)
Photo Credit Bill Fitzgerald PE
Guardrail Index 536-001 Sheets 7-8
Approach Terminals SolutionYES Wrong
First issuehellipFront slope break should be 6 feet behind guardrail face at post 1 per the Standards (110 Min)
Second issuehellipMisc Asphalt should extend 10 feet upstream of post 1 per Standards
Answerhellip
Correctedhellip
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Any issues hereYES Wrong
First issuehellipTrees are within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
Second issuehellipTree violates barrier setback per FDM Table 21542
Answerhellip
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Any issues hereYES Wrong
First issuehellipTrees are within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
Second issuehellipTree violates barrier setback per FDM Table 21542
Answerhellip
Guardrail Index 536-001 Sheets 7-8
Approach TerminalsYES Wrong
First issuehellipTrees are within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
From Standard Planshellip
Guardrail Index 536-001 Sheets 7-8
Approach Terminals
CREDIT VIRGINIA DOT ndash SKT Crash Test Published October 2016
httpswwwyoutubecomwatchv=OsKlfatcjogampfeature=youtube
httpswwwyoutubecomwatchv=h7tct7Oo9-8ampfeature=youtube
YES Wrong
First issuehellipTrees are within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
Guardrail Index 536-001 Sheets 7-8
Approach Terminals
CREDIT VIRGINIA DOT ndash SKT Crash Test Published October 2016
httpswwwyoutubecomwatchv=74ImLTY-PhUampfeature=youtube
YES Wrong
First issuehellipTrees are within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
Guardrail Index 536-001 Sheets 7-8
Approach TerminalsYES Wrong
First issuehellipTrees are within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
From Standard Planshellip
Guardrail Index 536-001
YES Wrong
Second issuehellipTree violates barrier setback per FDM Table 21542
Guardrail Index 536-001
YES Wrong
Second issuehellipTree violates barrier setback per FDM Table 21542
From FDMhellip
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Any issue hereYES Wrong
First issuehellipPerpendicular guardrail is not proven crashworthybull No end treatmentsbull Violates ldquotaper raterdquo
requirements of SPI Part I (big time)
bull Requires shielding if within Clear Zone
Answerhellip
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Any issue hereYES Wrong
Second issuehellipPerpendicular guardrail within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Any issue hereYES Wrong
Third issuehellipPerpendicular guardrail violates barrier setback per FDM Table 21542
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Solution 1
REMOVE theperpendicularGuardrail
Orhellip
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Solution 2
1 Extend Guardrail to meet Length of Need per SPI Part B (Excel lsquoDesign Toolrsquo) which is Roadside Design Guide Eq 5-3
2 Meet minimum barrier setback per FDM Table 21542 (5 feet for general guardrail)
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Final Case StudyAssumptionsbull Design Speed
50 mph
bull Piers designed to withstand 600 kip impact load per FDM215454(Pier Protection Barrier notRequired)
Guardrail Index 536-001
Approach Terminals Any issue hereAnswerhellip YES
First issuehellipPiers NOT shielded
ldquoLength of Needrdquo NOT met per SPI Part B (Excel Design Tool)
Guardrail Index 536-001
Approach Terminals Any issue hereAnswerhellip YES
First issuehellipPiers NOT shielded
ldquoLength of Needrdquo NOT met per SPI Part B (Excel Design Tool)
Piers are behind the ldquogatingrdquo(break-away) portion of Approach Terminal
Guardrail Index 536-001
Approach Terminals Any issue hereYES
Second issuehellipFlared Terminal usage on hold per RDB18-02
Regardlesshellip ldquoTaper Raterdquo too steep here at Approach Terminal (about 13 shown)
Guardrail requires 115 Max Taper Rate per SPI Part I
Guardrail Index 536-001
Approach Terminals Any issue hereAnswerhellip YES
Third issuehellipldquoBarrier Setbackrdquo requirement likely not satisfied
per FDM Table 21542(5 feet or greater)hellip
Guardrail Index 536-001
Approach Terminals Any issue hereYES
Fourth issuehellipldquoTrailing Anchoragerdquo not properly extended downstream of hazard
25-foot Requirement SPI C1 amp lsquoLONrsquo Design Tool (Excel)hellip
Answerhellip
Guardrail Index 536-001
Approach Terminals Any issue hereYES
Fourth issuehellipldquoTrailing Anchoragerdquo not properly extended downstream of hazard
25-foot Requirement SPI C1 amp lsquoLONrsquo Design Tool (Excel)hellip
AnswerhellipFrom lsquoLength of Needrsquo Excel Sheethellip
Guardrail Index 536-001 Crash Cushion Index 544-001
Approach Terminals Solution 1lsquoCrash Cushionrsquobull ldquoSystem Widthrdquo ndash
lsquoWidersquo per SPI 544-001 Part C
bull ldquoLength Restrictionrdquo - per SPI 544-001 Part F
bull Contact Central Office for guidance
Note Define Crash Cushion with provided CADD cellhellipldquoSummary of Permanent Crash Cushions Tablerdquo
Guardrail Index 536-001 Crash Cushion Index 544-001
Approach Terminals Solution 1lsquoCrash Cushionrsquobull Guardrail ldquoreduced
post spacingrdquo to reduce required hazard setback per FDM Table 21542
bull Again contact Central Office for guidance for such limited space
Concrete Barrier Index 521-001 Crash Cushion 544-001
Approach Terminals Solution 2lsquoConcrete Barrierrsquo amp lsquoCrash Cushionrsquo
bull Requires project-specific design
bull Contact Central Office for guidance for such limited space
Questions
Richard Stepp PEStandard Plans Engineer
Central Office Roadway Design(850) 414-4313
richardsteppdotstateflus
Standard Plans Single-Slope Barriers
Guardrail Index 536-001 Sheet 20
Pipe Rail Callouts Any issue hereAnswerhellip YES
Pipe Rail must terminate outside of End Treatments per SPI Part E and Standard PlansSolution
Guardrail Index 536-001 Sheets 13-15
Rigid Barrier Connections End Shielding
Guardrail Index 536-001 Sheets 13-15
Rigid Barrier Connection Any Issue HereAnswerhellip YES
asymp13 foot overlap with barrier is no longer Standard
(Overlap now only 7frac14rdquo Since FY2017-18 Standards for newsingle-faced guardrail)
Guardrail Index 536-001 Sheets 13-15
Rigid Barrier Connection Any Issues HereYES
asymp13 foot overlap with barrier is no longer Standard
(Overlap now only 7frac14rdquo Since FY2017-18 Standards for newsingle-faced guardrail)
Guardrail Index 536-001 Sheets 13-15
Rigid Barrier Connection Any Issues Here
Solution
YES
asymp13 foot overlap with barrier is no longer Standard
(Overlap now only 7frac14rdquo Since FY2017-18 Standards for newsingle-faced guardrail)
Guardrail Index 536-001 Sheets 7-8 13-14
Answerhellip
YES
Guardrail system ishellip
not long enough
Rigid Barrier Connection Any issue here
Minimum Length is Length of Approach Transition Connection lsquoLArsquoplus Length of End Treatment lsquoLErsquo
Guardrail Index 536-001 Sheets 7-8 13-14
Rigid Barrier End Shielding Min Length TL-2
lsquoLArsquo 213rsquo
+lsquoLErsquo 406rsquo
=
62rsquo
Guardrail Index 536-001 Sheets 7-8 13-14
Rigid Barrier End Shielding Min Length TL-2
lsquoLArsquo 213rsquo
+lsquoLErsquo 406rsquo
=
62rsquo
Guardrail Index 536-001 Sheets 7-8 13-14
Rigid Barrier End Shielding Min Length TL-3
lsquoLArsquo 306rsquo
+lsquoLErsquo 531rsquo
=
84rsquo
Guardrail Index 536-001 Sheets 7-8 13-14
Rigid Barrier End Shielding Min Length TL-3
lsquoLArsquo 306rsquo
+lsquoLErsquo 531rsquo
=
84rsquoNOTE If these lengths are not possible due to limited space consider the use of a Crash Cushion or a project-specific lsquovariationrsquo to fit the best barrier system possible
Contact Central Office for assistance
Guardrail Index 536-001 Sheets 7-8
Approach Terminals
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Any issues hereAnswerhellip YES
1 Flared terminals not permitted per RDB18-02
2 Curbed conditions require parallel Approach Terminals per Standard Plans ampSPI Part C3 Approach Terminals require lsquoType Ersquo Curb
Guardrail Index 536-001 Sheets 7-8
Approach Terminals
From Standard Planshellip
Answerhellip YES
1 Flared terminals not permitted per RDB18-02
2 Curbed conditions require parallel Approach Terminals per Standard Plans ampSPI Part C3 Approach Terminals require lsquoType Ersquo Curb
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Solution
1 Flared terminals not permitted per RDB18-02
2 Curbed conditions require parallel Approach Terminals per Standard Plans
3 Approach Terminals require lsquoType Ersquo Curb
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Any issues hereYES Wrong
First issuehellipFront slope break should be 6 feet behind guardrail face at post 1 per the Standards (110 Max)
Second issuehellipMisc Asphalt should extend 10 feet upstream of post 1 per Standards
Answerhellip
Guardrail Index 536-001 Sheets 7-8
Approach TerminalsYES Wrong
First issuehellipFront slope break should be 6 feet behind guardrail face at post 1 per the Standards (110 Min)
Second issuehellipMisc Asphalt should extend 10 feet upstream of post 1 per Standards
Answerhellip
From Standard Planshellip
Guardrail Index 536-001 Sheets 7-8
Approach TerminalsYES Wrong
First issuehellipFront slope break should be 6 feet behind guardrail face at post 1 per the Standards (110 Min)
Second issuehellipMisc Asphalt should extend 10 feet upstream of post 1 per Standards
Answerhellip
Example of Poor Slope Break Location (and steep slope not shielded)
Photo Credit Bill Fitzgerald PE
Guardrail Index 536-001 Sheets 7-8
Approach TerminalsYES Wrong
First issuehellipFront slope break should be 6 feet behind guardrail face at post 1 per the Standards (110 Min)
Second issuehellipMisc Asphalt should extend 10 feet upstream of post 1 per Standards
Answerhellip
Example of Poor Grading (The reason for Misc Asphalt requirement)
Photo Credit Bill Fitzgerald PE
Guardrail Index 536-001 Sheets 7-8
Approach Terminals SolutionYES Wrong
First issuehellipFront slope break should be 6 feet behind guardrail face at post 1 per the Standards (110 Min)
Second issuehellipMisc Asphalt should extend 10 feet upstream of post 1 per Standards
Answerhellip
Correctedhellip
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Any issues hereYES Wrong
First issuehellipTrees are within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
Second issuehellipTree violates barrier setback per FDM Table 21542
Answerhellip
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Any issues hereYES Wrong
First issuehellipTrees are within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
Second issuehellipTree violates barrier setback per FDM Table 21542
Answerhellip
Guardrail Index 536-001 Sheets 7-8
Approach TerminalsYES Wrong
First issuehellipTrees are within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
From Standard Planshellip
Guardrail Index 536-001 Sheets 7-8
Approach Terminals
CREDIT VIRGINIA DOT ndash SKT Crash Test Published October 2016
httpswwwyoutubecomwatchv=OsKlfatcjogampfeature=youtube
httpswwwyoutubecomwatchv=h7tct7Oo9-8ampfeature=youtube
YES Wrong
First issuehellipTrees are within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
Guardrail Index 536-001 Sheets 7-8
Approach Terminals
CREDIT VIRGINIA DOT ndash SKT Crash Test Published October 2016
httpswwwyoutubecomwatchv=74ImLTY-PhUampfeature=youtube
YES Wrong
First issuehellipTrees are within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
Guardrail Index 536-001 Sheets 7-8
Approach TerminalsYES Wrong
First issuehellipTrees are within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
From Standard Planshellip
Guardrail Index 536-001
YES Wrong
Second issuehellipTree violates barrier setback per FDM Table 21542
Guardrail Index 536-001
YES Wrong
Second issuehellipTree violates barrier setback per FDM Table 21542
From FDMhellip
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Any issue hereYES Wrong
First issuehellipPerpendicular guardrail is not proven crashworthybull No end treatmentsbull Violates ldquotaper raterdquo
requirements of SPI Part I (big time)
bull Requires shielding if within Clear Zone
Answerhellip
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Any issue hereYES Wrong
Second issuehellipPerpendicular guardrail within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Any issue hereYES Wrong
Third issuehellipPerpendicular guardrail violates barrier setback per FDM Table 21542
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Solution 1
REMOVE theperpendicularGuardrail
Orhellip
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Solution 2
1 Extend Guardrail to meet Length of Need per SPI Part B (Excel lsquoDesign Toolrsquo) which is Roadside Design Guide Eq 5-3
2 Meet minimum barrier setback per FDM Table 21542 (5 feet for general guardrail)
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Final Case StudyAssumptionsbull Design Speed
50 mph
bull Piers designed to withstand 600 kip impact load per FDM215454(Pier Protection Barrier notRequired)
Guardrail Index 536-001
Approach Terminals Any issue hereAnswerhellip YES
First issuehellipPiers NOT shielded
ldquoLength of Needrdquo NOT met per SPI Part B (Excel Design Tool)
Guardrail Index 536-001
Approach Terminals Any issue hereAnswerhellip YES
First issuehellipPiers NOT shielded
ldquoLength of Needrdquo NOT met per SPI Part B (Excel Design Tool)
Piers are behind the ldquogatingrdquo(break-away) portion of Approach Terminal
Guardrail Index 536-001
Approach Terminals Any issue hereYES
Second issuehellipFlared Terminal usage on hold per RDB18-02
Regardlesshellip ldquoTaper Raterdquo too steep here at Approach Terminal (about 13 shown)
Guardrail requires 115 Max Taper Rate per SPI Part I
Guardrail Index 536-001
Approach Terminals Any issue hereAnswerhellip YES
Third issuehellipldquoBarrier Setbackrdquo requirement likely not satisfied
per FDM Table 21542(5 feet or greater)hellip
Guardrail Index 536-001
Approach Terminals Any issue hereYES
Fourth issuehellipldquoTrailing Anchoragerdquo not properly extended downstream of hazard
25-foot Requirement SPI C1 amp lsquoLONrsquo Design Tool (Excel)hellip
Answerhellip
Guardrail Index 536-001
Approach Terminals Any issue hereYES
Fourth issuehellipldquoTrailing Anchoragerdquo not properly extended downstream of hazard
25-foot Requirement SPI C1 amp lsquoLONrsquo Design Tool (Excel)hellip
AnswerhellipFrom lsquoLength of Needrsquo Excel Sheethellip
Guardrail Index 536-001 Crash Cushion Index 544-001
Approach Terminals Solution 1lsquoCrash Cushionrsquobull ldquoSystem Widthrdquo ndash
lsquoWidersquo per SPI 544-001 Part C
bull ldquoLength Restrictionrdquo - per SPI 544-001 Part F
bull Contact Central Office for guidance
Note Define Crash Cushion with provided CADD cellhellipldquoSummary of Permanent Crash Cushions Tablerdquo
Guardrail Index 536-001 Crash Cushion Index 544-001
Approach Terminals Solution 1lsquoCrash Cushionrsquobull Guardrail ldquoreduced
post spacingrdquo to reduce required hazard setback per FDM Table 21542
bull Again contact Central Office for guidance for such limited space
Concrete Barrier Index 521-001 Crash Cushion 544-001
Approach Terminals Solution 2lsquoConcrete Barrierrsquo amp lsquoCrash Cushionrsquo
bull Requires project-specific design
bull Contact Central Office for guidance for such limited space
Questions
Richard Stepp PEStandard Plans Engineer
Central Office Roadway Design(850) 414-4313
richardsteppdotstateflus
Standard Plans Single-Slope Barriers
Guardrail Index 536-001 Sheets 13-15
Rigid Barrier Connections End Shielding
Guardrail Index 536-001 Sheets 13-15
Rigid Barrier Connection Any Issue HereAnswerhellip YES
asymp13 foot overlap with barrier is no longer Standard
(Overlap now only 7frac14rdquo Since FY2017-18 Standards for newsingle-faced guardrail)
Guardrail Index 536-001 Sheets 13-15
Rigid Barrier Connection Any Issues HereYES
asymp13 foot overlap with barrier is no longer Standard
(Overlap now only 7frac14rdquo Since FY2017-18 Standards for newsingle-faced guardrail)
Guardrail Index 536-001 Sheets 13-15
Rigid Barrier Connection Any Issues Here
Solution
YES
asymp13 foot overlap with barrier is no longer Standard
(Overlap now only 7frac14rdquo Since FY2017-18 Standards for newsingle-faced guardrail)
Guardrail Index 536-001 Sheets 7-8 13-14
Answerhellip
YES
Guardrail system ishellip
not long enough
Rigid Barrier Connection Any issue here
Minimum Length is Length of Approach Transition Connection lsquoLArsquoplus Length of End Treatment lsquoLErsquo
Guardrail Index 536-001 Sheets 7-8 13-14
Rigid Barrier End Shielding Min Length TL-2
lsquoLArsquo 213rsquo
+lsquoLErsquo 406rsquo
=
62rsquo
Guardrail Index 536-001 Sheets 7-8 13-14
Rigid Barrier End Shielding Min Length TL-2
lsquoLArsquo 213rsquo
+lsquoLErsquo 406rsquo
=
62rsquo
Guardrail Index 536-001 Sheets 7-8 13-14
Rigid Barrier End Shielding Min Length TL-3
lsquoLArsquo 306rsquo
+lsquoLErsquo 531rsquo
=
84rsquo
Guardrail Index 536-001 Sheets 7-8 13-14
Rigid Barrier End Shielding Min Length TL-3
lsquoLArsquo 306rsquo
+lsquoLErsquo 531rsquo
=
84rsquoNOTE If these lengths are not possible due to limited space consider the use of a Crash Cushion or a project-specific lsquovariationrsquo to fit the best barrier system possible
Contact Central Office for assistance
Guardrail Index 536-001 Sheets 7-8
Approach Terminals
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Any issues hereAnswerhellip YES
1 Flared terminals not permitted per RDB18-02
2 Curbed conditions require parallel Approach Terminals per Standard Plans ampSPI Part C3 Approach Terminals require lsquoType Ersquo Curb
Guardrail Index 536-001 Sheets 7-8
Approach Terminals
From Standard Planshellip
Answerhellip YES
1 Flared terminals not permitted per RDB18-02
2 Curbed conditions require parallel Approach Terminals per Standard Plans ampSPI Part C3 Approach Terminals require lsquoType Ersquo Curb
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Solution
1 Flared terminals not permitted per RDB18-02
2 Curbed conditions require parallel Approach Terminals per Standard Plans
3 Approach Terminals require lsquoType Ersquo Curb
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Any issues hereYES Wrong
First issuehellipFront slope break should be 6 feet behind guardrail face at post 1 per the Standards (110 Max)
Second issuehellipMisc Asphalt should extend 10 feet upstream of post 1 per Standards
Answerhellip
Guardrail Index 536-001 Sheets 7-8
Approach TerminalsYES Wrong
First issuehellipFront slope break should be 6 feet behind guardrail face at post 1 per the Standards (110 Min)
Second issuehellipMisc Asphalt should extend 10 feet upstream of post 1 per Standards
Answerhellip
From Standard Planshellip
Guardrail Index 536-001 Sheets 7-8
Approach TerminalsYES Wrong
First issuehellipFront slope break should be 6 feet behind guardrail face at post 1 per the Standards (110 Min)
Second issuehellipMisc Asphalt should extend 10 feet upstream of post 1 per Standards
Answerhellip
Example of Poor Slope Break Location (and steep slope not shielded)
Photo Credit Bill Fitzgerald PE
Guardrail Index 536-001 Sheets 7-8
Approach TerminalsYES Wrong
First issuehellipFront slope break should be 6 feet behind guardrail face at post 1 per the Standards (110 Min)
Second issuehellipMisc Asphalt should extend 10 feet upstream of post 1 per Standards
Answerhellip
Example of Poor Grading (The reason for Misc Asphalt requirement)
Photo Credit Bill Fitzgerald PE
Guardrail Index 536-001 Sheets 7-8
Approach Terminals SolutionYES Wrong
First issuehellipFront slope break should be 6 feet behind guardrail face at post 1 per the Standards (110 Min)
Second issuehellipMisc Asphalt should extend 10 feet upstream of post 1 per Standards
Answerhellip
Correctedhellip
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Any issues hereYES Wrong
First issuehellipTrees are within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
Second issuehellipTree violates barrier setback per FDM Table 21542
Answerhellip
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Any issues hereYES Wrong
First issuehellipTrees are within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
Second issuehellipTree violates barrier setback per FDM Table 21542
Answerhellip
Guardrail Index 536-001 Sheets 7-8
Approach TerminalsYES Wrong
First issuehellipTrees are within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
From Standard Planshellip
Guardrail Index 536-001 Sheets 7-8
Approach Terminals
CREDIT VIRGINIA DOT ndash SKT Crash Test Published October 2016
httpswwwyoutubecomwatchv=OsKlfatcjogampfeature=youtube
httpswwwyoutubecomwatchv=h7tct7Oo9-8ampfeature=youtube
YES Wrong
First issuehellipTrees are within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
Guardrail Index 536-001 Sheets 7-8
Approach Terminals
CREDIT VIRGINIA DOT ndash SKT Crash Test Published October 2016
httpswwwyoutubecomwatchv=74ImLTY-PhUampfeature=youtube
YES Wrong
First issuehellipTrees are within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
Guardrail Index 536-001 Sheets 7-8
Approach TerminalsYES Wrong
First issuehellipTrees are within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
From Standard Planshellip
Guardrail Index 536-001
YES Wrong
Second issuehellipTree violates barrier setback per FDM Table 21542
Guardrail Index 536-001
YES Wrong
Second issuehellipTree violates barrier setback per FDM Table 21542
From FDMhellip
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Any issue hereYES Wrong
First issuehellipPerpendicular guardrail is not proven crashworthybull No end treatmentsbull Violates ldquotaper raterdquo
requirements of SPI Part I (big time)
bull Requires shielding if within Clear Zone
Answerhellip
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Any issue hereYES Wrong
Second issuehellipPerpendicular guardrail within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Any issue hereYES Wrong
Third issuehellipPerpendicular guardrail violates barrier setback per FDM Table 21542
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Solution 1
REMOVE theperpendicularGuardrail
Orhellip
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Solution 2
1 Extend Guardrail to meet Length of Need per SPI Part B (Excel lsquoDesign Toolrsquo) which is Roadside Design Guide Eq 5-3
2 Meet minimum barrier setback per FDM Table 21542 (5 feet for general guardrail)
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Final Case StudyAssumptionsbull Design Speed
50 mph
bull Piers designed to withstand 600 kip impact load per FDM215454(Pier Protection Barrier notRequired)
Guardrail Index 536-001
Approach Terminals Any issue hereAnswerhellip YES
First issuehellipPiers NOT shielded
ldquoLength of Needrdquo NOT met per SPI Part B (Excel Design Tool)
Guardrail Index 536-001
Approach Terminals Any issue hereAnswerhellip YES
First issuehellipPiers NOT shielded
ldquoLength of Needrdquo NOT met per SPI Part B (Excel Design Tool)
Piers are behind the ldquogatingrdquo(break-away) portion of Approach Terminal
Guardrail Index 536-001
Approach Terminals Any issue hereYES
Second issuehellipFlared Terminal usage on hold per RDB18-02
Regardlesshellip ldquoTaper Raterdquo too steep here at Approach Terminal (about 13 shown)
Guardrail requires 115 Max Taper Rate per SPI Part I
Guardrail Index 536-001
Approach Terminals Any issue hereAnswerhellip YES
Third issuehellipldquoBarrier Setbackrdquo requirement likely not satisfied
per FDM Table 21542(5 feet or greater)hellip
Guardrail Index 536-001
Approach Terminals Any issue hereYES
Fourth issuehellipldquoTrailing Anchoragerdquo not properly extended downstream of hazard
25-foot Requirement SPI C1 amp lsquoLONrsquo Design Tool (Excel)hellip
Answerhellip
Guardrail Index 536-001
Approach Terminals Any issue hereYES
Fourth issuehellipldquoTrailing Anchoragerdquo not properly extended downstream of hazard
25-foot Requirement SPI C1 amp lsquoLONrsquo Design Tool (Excel)hellip
AnswerhellipFrom lsquoLength of Needrsquo Excel Sheethellip
Guardrail Index 536-001 Crash Cushion Index 544-001
Approach Terminals Solution 1lsquoCrash Cushionrsquobull ldquoSystem Widthrdquo ndash
lsquoWidersquo per SPI 544-001 Part C
bull ldquoLength Restrictionrdquo - per SPI 544-001 Part F
bull Contact Central Office for guidance
Note Define Crash Cushion with provided CADD cellhellipldquoSummary of Permanent Crash Cushions Tablerdquo
Guardrail Index 536-001 Crash Cushion Index 544-001
Approach Terminals Solution 1lsquoCrash Cushionrsquobull Guardrail ldquoreduced
post spacingrdquo to reduce required hazard setback per FDM Table 21542
bull Again contact Central Office for guidance for such limited space
Concrete Barrier Index 521-001 Crash Cushion 544-001
Approach Terminals Solution 2lsquoConcrete Barrierrsquo amp lsquoCrash Cushionrsquo
bull Requires project-specific design
bull Contact Central Office for guidance for such limited space
Questions
Richard Stepp PEStandard Plans Engineer
Central Office Roadway Design(850) 414-4313
richardsteppdotstateflus
Standard Plans Single-Slope Barriers
Guardrail Index 536-001 Sheets 13-15
Rigid Barrier Connection Any Issue HereAnswerhellip YES
asymp13 foot overlap with barrier is no longer Standard
(Overlap now only 7frac14rdquo Since FY2017-18 Standards for newsingle-faced guardrail)
Guardrail Index 536-001 Sheets 13-15
Rigid Barrier Connection Any Issues HereYES
asymp13 foot overlap with barrier is no longer Standard
(Overlap now only 7frac14rdquo Since FY2017-18 Standards for newsingle-faced guardrail)
Guardrail Index 536-001 Sheets 13-15
Rigid Barrier Connection Any Issues Here
Solution
YES
asymp13 foot overlap with barrier is no longer Standard
(Overlap now only 7frac14rdquo Since FY2017-18 Standards for newsingle-faced guardrail)
Guardrail Index 536-001 Sheets 7-8 13-14
Answerhellip
YES
Guardrail system ishellip
not long enough
Rigid Barrier Connection Any issue here
Minimum Length is Length of Approach Transition Connection lsquoLArsquoplus Length of End Treatment lsquoLErsquo
Guardrail Index 536-001 Sheets 7-8 13-14
Rigid Barrier End Shielding Min Length TL-2
lsquoLArsquo 213rsquo
+lsquoLErsquo 406rsquo
=
62rsquo
Guardrail Index 536-001 Sheets 7-8 13-14
Rigid Barrier End Shielding Min Length TL-2
lsquoLArsquo 213rsquo
+lsquoLErsquo 406rsquo
=
62rsquo
Guardrail Index 536-001 Sheets 7-8 13-14
Rigid Barrier End Shielding Min Length TL-3
lsquoLArsquo 306rsquo
+lsquoLErsquo 531rsquo
=
84rsquo
Guardrail Index 536-001 Sheets 7-8 13-14
Rigid Barrier End Shielding Min Length TL-3
lsquoLArsquo 306rsquo
+lsquoLErsquo 531rsquo
=
84rsquoNOTE If these lengths are not possible due to limited space consider the use of a Crash Cushion or a project-specific lsquovariationrsquo to fit the best barrier system possible
Contact Central Office for assistance
Guardrail Index 536-001 Sheets 7-8
Approach Terminals
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Any issues hereAnswerhellip YES
1 Flared terminals not permitted per RDB18-02
2 Curbed conditions require parallel Approach Terminals per Standard Plans ampSPI Part C3 Approach Terminals require lsquoType Ersquo Curb
Guardrail Index 536-001 Sheets 7-8
Approach Terminals
From Standard Planshellip
Answerhellip YES
1 Flared terminals not permitted per RDB18-02
2 Curbed conditions require parallel Approach Terminals per Standard Plans ampSPI Part C3 Approach Terminals require lsquoType Ersquo Curb
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Solution
1 Flared terminals not permitted per RDB18-02
2 Curbed conditions require parallel Approach Terminals per Standard Plans
3 Approach Terminals require lsquoType Ersquo Curb
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Any issues hereYES Wrong
First issuehellipFront slope break should be 6 feet behind guardrail face at post 1 per the Standards (110 Max)
Second issuehellipMisc Asphalt should extend 10 feet upstream of post 1 per Standards
Answerhellip
Guardrail Index 536-001 Sheets 7-8
Approach TerminalsYES Wrong
First issuehellipFront slope break should be 6 feet behind guardrail face at post 1 per the Standards (110 Min)
Second issuehellipMisc Asphalt should extend 10 feet upstream of post 1 per Standards
Answerhellip
From Standard Planshellip
Guardrail Index 536-001 Sheets 7-8
Approach TerminalsYES Wrong
First issuehellipFront slope break should be 6 feet behind guardrail face at post 1 per the Standards (110 Min)
Second issuehellipMisc Asphalt should extend 10 feet upstream of post 1 per Standards
Answerhellip
Example of Poor Slope Break Location (and steep slope not shielded)
Photo Credit Bill Fitzgerald PE
Guardrail Index 536-001 Sheets 7-8
Approach TerminalsYES Wrong
First issuehellipFront slope break should be 6 feet behind guardrail face at post 1 per the Standards (110 Min)
Second issuehellipMisc Asphalt should extend 10 feet upstream of post 1 per Standards
Answerhellip
Example of Poor Grading (The reason for Misc Asphalt requirement)
Photo Credit Bill Fitzgerald PE
Guardrail Index 536-001 Sheets 7-8
Approach Terminals SolutionYES Wrong
First issuehellipFront slope break should be 6 feet behind guardrail face at post 1 per the Standards (110 Min)
Second issuehellipMisc Asphalt should extend 10 feet upstream of post 1 per Standards
Answerhellip
Correctedhellip
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Any issues hereYES Wrong
First issuehellipTrees are within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
Second issuehellipTree violates barrier setback per FDM Table 21542
Answerhellip
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Any issues hereYES Wrong
First issuehellipTrees are within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
Second issuehellipTree violates barrier setback per FDM Table 21542
Answerhellip
Guardrail Index 536-001 Sheets 7-8
Approach TerminalsYES Wrong
First issuehellipTrees are within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
From Standard Planshellip
Guardrail Index 536-001 Sheets 7-8
Approach Terminals
CREDIT VIRGINIA DOT ndash SKT Crash Test Published October 2016
httpswwwyoutubecomwatchv=OsKlfatcjogampfeature=youtube
httpswwwyoutubecomwatchv=h7tct7Oo9-8ampfeature=youtube
YES Wrong
First issuehellipTrees are within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
Guardrail Index 536-001 Sheets 7-8
Approach Terminals
CREDIT VIRGINIA DOT ndash SKT Crash Test Published October 2016
httpswwwyoutubecomwatchv=74ImLTY-PhUampfeature=youtube
YES Wrong
First issuehellipTrees are within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
Guardrail Index 536-001 Sheets 7-8
Approach TerminalsYES Wrong
First issuehellipTrees are within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
From Standard Planshellip
Guardrail Index 536-001
YES Wrong
Second issuehellipTree violates barrier setback per FDM Table 21542
Guardrail Index 536-001
YES Wrong
Second issuehellipTree violates barrier setback per FDM Table 21542
From FDMhellip
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Any issue hereYES Wrong
First issuehellipPerpendicular guardrail is not proven crashworthybull No end treatmentsbull Violates ldquotaper raterdquo
requirements of SPI Part I (big time)
bull Requires shielding if within Clear Zone
Answerhellip
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Any issue hereYES Wrong
Second issuehellipPerpendicular guardrail within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Any issue hereYES Wrong
Third issuehellipPerpendicular guardrail violates barrier setback per FDM Table 21542
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Solution 1
REMOVE theperpendicularGuardrail
Orhellip
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Solution 2
1 Extend Guardrail to meet Length of Need per SPI Part B (Excel lsquoDesign Toolrsquo) which is Roadside Design Guide Eq 5-3
2 Meet minimum barrier setback per FDM Table 21542 (5 feet for general guardrail)
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Final Case StudyAssumptionsbull Design Speed
50 mph
bull Piers designed to withstand 600 kip impact load per FDM215454(Pier Protection Barrier notRequired)
Guardrail Index 536-001
Approach Terminals Any issue hereAnswerhellip YES
First issuehellipPiers NOT shielded
ldquoLength of Needrdquo NOT met per SPI Part B (Excel Design Tool)
Guardrail Index 536-001
Approach Terminals Any issue hereAnswerhellip YES
First issuehellipPiers NOT shielded
ldquoLength of Needrdquo NOT met per SPI Part B (Excel Design Tool)
Piers are behind the ldquogatingrdquo(break-away) portion of Approach Terminal
Guardrail Index 536-001
Approach Terminals Any issue hereYES
Second issuehellipFlared Terminal usage on hold per RDB18-02
Regardlesshellip ldquoTaper Raterdquo too steep here at Approach Terminal (about 13 shown)
Guardrail requires 115 Max Taper Rate per SPI Part I
Guardrail Index 536-001
Approach Terminals Any issue hereAnswerhellip YES
Third issuehellipldquoBarrier Setbackrdquo requirement likely not satisfied
per FDM Table 21542(5 feet or greater)hellip
Guardrail Index 536-001
Approach Terminals Any issue hereYES
Fourth issuehellipldquoTrailing Anchoragerdquo not properly extended downstream of hazard
25-foot Requirement SPI C1 amp lsquoLONrsquo Design Tool (Excel)hellip
Answerhellip
Guardrail Index 536-001
Approach Terminals Any issue hereYES
Fourth issuehellipldquoTrailing Anchoragerdquo not properly extended downstream of hazard
25-foot Requirement SPI C1 amp lsquoLONrsquo Design Tool (Excel)hellip
AnswerhellipFrom lsquoLength of Needrsquo Excel Sheethellip
Guardrail Index 536-001 Crash Cushion Index 544-001
Approach Terminals Solution 1lsquoCrash Cushionrsquobull ldquoSystem Widthrdquo ndash
lsquoWidersquo per SPI 544-001 Part C
bull ldquoLength Restrictionrdquo - per SPI 544-001 Part F
bull Contact Central Office for guidance
Note Define Crash Cushion with provided CADD cellhellipldquoSummary of Permanent Crash Cushions Tablerdquo
Guardrail Index 536-001 Crash Cushion Index 544-001
Approach Terminals Solution 1lsquoCrash Cushionrsquobull Guardrail ldquoreduced
post spacingrdquo to reduce required hazard setback per FDM Table 21542
bull Again contact Central Office for guidance for such limited space
Concrete Barrier Index 521-001 Crash Cushion 544-001
Approach Terminals Solution 2lsquoConcrete Barrierrsquo amp lsquoCrash Cushionrsquo
bull Requires project-specific design
bull Contact Central Office for guidance for such limited space
Questions
Richard Stepp PEStandard Plans Engineer
Central Office Roadway Design(850) 414-4313
richardsteppdotstateflus
Standard Plans Single-Slope Barriers
Guardrail Index 536-001 Sheets 13-15
Rigid Barrier Connection Any Issues HereYES
asymp13 foot overlap with barrier is no longer Standard
(Overlap now only 7frac14rdquo Since FY2017-18 Standards for newsingle-faced guardrail)
Guardrail Index 536-001 Sheets 13-15
Rigid Barrier Connection Any Issues Here
Solution
YES
asymp13 foot overlap with barrier is no longer Standard
(Overlap now only 7frac14rdquo Since FY2017-18 Standards for newsingle-faced guardrail)
Guardrail Index 536-001 Sheets 7-8 13-14
Answerhellip
YES
Guardrail system ishellip
not long enough
Rigid Barrier Connection Any issue here
Minimum Length is Length of Approach Transition Connection lsquoLArsquoplus Length of End Treatment lsquoLErsquo
Guardrail Index 536-001 Sheets 7-8 13-14
Rigid Barrier End Shielding Min Length TL-2
lsquoLArsquo 213rsquo
+lsquoLErsquo 406rsquo
=
62rsquo
Guardrail Index 536-001 Sheets 7-8 13-14
Rigid Barrier End Shielding Min Length TL-2
lsquoLArsquo 213rsquo
+lsquoLErsquo 406rsquo
=
62rsquo
Guardrail Index 536-001 Sheets 7-8 13-14
Rigid Barrier End Shielding Min Length TL-3
lsquoLArsquo 306rsquo
+lsquoLErsquo 531rsquo
=
84rsquo
Guardrail Index 536-001 Sheets 7-8 13-14
Rigid Barrier End Shielding Min Length TL-3
lsquoLArsquo 306rsquo
+lsquoLErsquo 531rsquo
=
84rsquoNOTE If these lengths are not possible due to limited space consider the use of a Crash Cushion or a project-specific lsquovariationrsquo to fit the best barrier system possible
Contact Central Office for assistance
Guardrail Index 536-001 Sheets 7-8
Approach Terminals
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Any issues hereAnswerhellip YES
1 Flared terminals not permitted per RDB18-02
2 Curbed conditions require parallel Approach Terminals per Standard Plans ampSPI Part C3 Approach Terminals require lsquoType Ersquo Curb
Guardrail Index 536-001 Sheets 7-8
Approach Terminals
From Standard Planshellip
Answerhellip YES
1 Flared terminals not permitted per RDB18-02
2 Curbed conditions require parallel Approach Terminals per Standard Plans ampSPI Part C3 Approach Terminals require lsquoType Ersquo Curb
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Solution
1 Flared terminals not permitted per RDB18-02
2 Curbed conditions require parallel Approach Terminals per Standard Plans
3 Approach Terminals require lsquoType Ersquo Curb
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Any issues hereYES Wrong
First issuehellipFront slope break should be 6 feet behind guardrail face at post 1 per the Standards (110 Max)
Second issuehellipMisc Asphalt should extend 10 feet upstream of post 1 per Standards
Answerhellip
Guardrail Index 536-001 Sheets 7-8
Approach TerminalsYES Wrong
First issuehellipFront slope break should be 6 feet behind guardrail face at post 1 per the Standards (110 Min)
Second issuehellipMisc Asphalt should extend 10 feet upstream of post 1 per Standards
Answerhellip
From Standard Planshellip
Guardrail Index 536-001 Sheets 7-8
Approach TerminalsYES Wrong
First issuehellipFront slope break should be 6 feet behind guardrail face at post 1 per the Standards (110 Min)
Second issuehellipMisc Asphalt should extend 10 feet upstream of post 1 per Standards
Answerhellip
Example of Poor Slope Break Location (and steep slope not shielded)
Photo Credit Bill Fitzgerald PE
Guardrail Index 536-001 Sheets 7-8
Approach TerminalsYES Wrong
First issuehellipFront slope break should be 6 feet behind guardrail face at post 1 per the Standards (110 Min)
Second issuehellipMisc Asphalt should extend 10 feet upstream of post 1 per Standards
Answerhellip
Example of Poor Grading (The reason for Misc Asphalt requirement)
Photo Credit Bill Fitzgerald PE
Guardrail Index 536-001 Sheets 7-8
Approach Terminals SolutionYES Wrong
First issuehellipFront slope break should be 6 feet behind guardrail face at post 1 per the Standards (110 Min)
Second issuehellipMisc Asphalt should extend 10 feet upstream of post 1 per Standards
Answerhellip
Correctedhellip
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Any issues hereYES Wrong
First issuehellipTrees are within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
Second issuehellipTree violates barrier setback per FDM Table 21542
Answerhellip
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Any issues hereYES Wrong
First issuehellipTrees are within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
Second issuehellipTree violates barrier setback per FDM Table 21542
Answerhellip
Guardrail Index 536-001 Sheets 7-8
Approach TerminalsYES Wrong
First issuehellipTrees are within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
From Standard Planshellip
Guardrail Index 536-001 Sheets 7-8
Approach Terminals
CREDIT VIRGINIA DOT ndash SKT Crash Test Published October 2016
httpswwwyoutubecomwatchv=OsKlfatcjogampfeature=youtube
httpswwwyoutubecomwatchv=h7tct7Oo9-8ampfeature=youtube
YES Wrong
First issuehellipTrees are within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
Guardrail Index 536-001 Sheets 7-8
Approach Terminals
CREDIT VIRGINIA DOT ndash SKT Crash Test Published October 2016
httpswwwyoutubecomwatchv=74ImLTY-PhUampfeature=youtube
YES Wrong
First issuehellipTrees are within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
Guardrail Index 536-001 Sheets 7-8
Approach TerminalsYES Wrong
First issuehellipTrees are within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
From Standard Planshellip
Guardrail Index 536-001
YES Wrong
Second issuehellipTree violates barrier setback per FDM Table 21542
Guardrail Index 536-001
YES Wrong
Second issuehellipTree violates barrier setback per FDM Table 21542
From FDMhellip
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Any issue hereYES Wrong
First issuehellipPerpendicular guardrail is not proven crashworthybull No end treatmentsbull Violates ldquotaper raterdquo
requirements of SPI Part I (big time)
bull Requires shielding if within Clear Zone
Answerhellip
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Any issue hereYES Wrong
Second issuehellipPerpendicular guardrail within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Any issue hereYES Wrong
Third issuehellipPerpendicular guardrail violates barrier setback per FDM Table 21542
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Solution 1
REMOVE theperpendicularGuardrail
Orhellip
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Solution 2
1 Extend Guardrail to meet Length of Need per SPI Part B (Excel lsquoDesign Toolrsquo) which is Roadside Design Guide Eq 5-3
2 Meet minimum barrier setback per FDM Table 21542 (5 feet for general guardrail)
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Final Case StudyAssumptionsbull Design Speed
50 mph
bull Piers designed to withstand 600 kip impact load per FDM215454(Pier Protection Barrier notRequired)
Guardrail Index 536-001
Approach Terminals Any issue hereAnswerhellip YES
First issuehellipPiers NOT shielded
ldquoLength of Needrdquo NOT met per SPI Part B (Excel Design Tool)
Guardrail Index 536-001
Approach Terminals Any issue hereAnswerhellip YES
First issuehellipPiers NOT shielded
ldquoLength of Needrdquo NOT met per SPI Part B (Excel Design Tool)
Piers are behind the ldquogatingrdquo(break-away) portion of Approach Terminal
Guardrail Index 536-001
Approach Terminals Any issue hereYES
Second issuehellipFlared Terminal usage on hold per RDB18-02
Regardlesshellip ldquoTaper Raterdquo too steep here at Approach Terminal (about 13 shown)
Guardrail requires 115 Max Taper Rate per SPI Part I
Guardrail Index 536-001
Approach Terminals Any issue hereAnswerhellip YES
Third issuehellipldquoBarrier Setbackrdquo requirement likely not satisfied
per FDM Table 21542(5 feet or greater)hellip
Guardrail Index 536-001
Approach Terminals Any issue hereYES
Fourth issuehellipldquoTrailing Anchoragerdquo not properly extended downstream of hazard
25-foot Requirement SPI C1 amp lsquoLONrsquo Design Tool (Excel)hellip
Answerhellip
Guardrail Index 536-001
Approach Terminals Any issue hereYES
Fourth issuehellipldquoTrailing Anchoragerdquo not properly extended downstream of hazard
25-foot Requirement SPI C1 amp lsquoLONrsquo Design Tool (Excel)hellip
AnswerhellipFrom lsquoLength of Needrsquo Excel Sheethellip
Guardrail Index 536-001 Crash Cushion Index 544-001
Approach Terminals Solution 1lsquoCrash Cushionrsquobull ldquoSystem Widthrdquo ndash
lsquoWidersquo per SPI 544-001 Part C
bull ldquoLength Restrictionrdquo - per SPI 544-001 Part F
bull Contact Central Office for guidance
Note Define Crash Cushion with provided CADD cellhellipldquoSummary of Permanent Crash Cushions Tablerdquo
Guardrail Index 536-001 Crash Cushion Index 544-001
Approach Terminals Solution 1lsquoCrash Cushionrsquobull Guardrail ldquoreduced
post spacingrdquo to reduce required hazard setback per FDM Table 21542
bull Again contact Central Office for guidance for such limited space
Concrete Barrier Index 521-001 Crash Cushion 544-001
Approach Terminals Solution 2lsquoConcrete Barrierrsquo amp lsquoCrash Cushionrsquo
bull Requires project-specific design
bull Contact Central Office for guidance for such limited space
Questions
Richard Stepp PEStandard Plans Engineer
Central Office Roadway Design(850) 414-4313
richardsteppdotstateflus
Standard Plans Single-Slope Barriers
Guardrail Index 536-001 Sheets 13-15
Rigid Barrier Connection Any Issues Here
Solution
YES
asymp13 foot overlap with barrier is no longer Standard
(Overlap now only 7frac14rdquo Since FY2017-18 Standards for newsingle-faced guardrail)
Guardrail Index 536-001 Sheets 7-8 13-14
Answerhellip
YES
Guardrail system ishellip
not long enough
Rigid Barrier Connection Any issue here
Minimum Length is Length of Approach Transition Connection lsquoLArsquoplus Length of End Treatment lsquoLErsquo
Guardrail Index 536-001 Sheets 7-8 13-14
Rigid Barrier End Shielding Min Length TL-2
lsquoLArsquo 213rsquo
+lsquoLErsquo 406rsquo
=
62rsquo
Guardrail Index 536-001 Sheets 7-8 13-14
Rigid Barrier End Shielding Min Length TL-2
lsquoLArsquo 213rsquo
+lsquoLErsquo 406rsquo
=
62rsquo
Guardrail Index 536-001 Sheets 7-8 13-14
Rigid Barrier End Shielding Min Length TL-3
lsquoLArsquo 306rsquo
+lsquoLErsquo 531rsquo
=
84rsquo
Guardrail Index 536-001 Sheets 7-8 13-14
Rigid Barrier End Shielding Min Length TL-3
lsquoLArsquo 306rsquo
+lsquoLErsquo 531rsquo
=
84rsquoNOTE If these lengths are not possible due to limited space consider the use of a Crash Cushion or a project-specific lsquovariationrsquo to fit the best barrier system possible
Contact Central Office for assistance
Guardrail Index 536-001 Sheets 7-8
Approach Terminals
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Any issues hereAnswerhellip YES
1 Flared terminals not permitted per RDB18-02
2 Curbed conditions require parallel Approach Terminals per Standard Plans ampSPI Part C3 Approach Terminals require lsquoType Ersquo Curb
Guardrail Index 536-001 Sheets 7-8
Approach Terminals
From Standard Planshellip
Answerhellip YES
1 Flared terminals not permitted per RDB18-02
2 Curbed conditions require parallel Approach Terminals per Standard Plans ampSPI Part C3 Approach Terminals require lsquoType Ersquo Curb
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Solution
1 Flared terminals not permitted per RDB18-02
2 Curbed conditions require parallel Approach Terminals per Standard Plans
3 Approach Terminals require lsquoType Ersquo Curb
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Any issues hereYES Wrong
First issuehellipFront slope break should be 6 feet behind guardrail face at post 1 per the Standards (110 Max)
Second issuehellipMisc Asphalt should extend 10 feet upstream of post 1 per Standards
Answerhellip
Guardrail Index 536-001 Sheets 7-8
Approach TerminalsYES Wrong
First issuehellipFront slope break should be 6 feet behind guardrail face at post 1 per the Standards (110 Min)
Second issuehellipMisc Asphalt should extend 10 feet upstream of post 1 per Standards
Answerhellip
From Standard Planshellip
Guardrail Index 536-001 Sheets 7-8
Approach TerminalsYES Wrong
First issuehellipFront slope break should be 6 feet behind guardrail face at post 1 per the Standards (110 Min)
Second issuehellipMisc Asphalt should extend 10 feet upstream of post 1 per Standards
Answerhellip
Example of Poor Slope Break Location (and steep slope not shielded)
Photo Credit Bill Fitzgerald PE
Guardrail Index 536-001 Sheets 7-8
Approach TerminalsYES Wrong
First issuehellipFront slope break should be 6 feet behind guardrail face at post 1 per the Standards (110 Min)
Second issuehellipMisc Asphalt should extend 10 feet upstream of post 1 per Standards
Answerhellip
Example of Poor Grading (The reason for Misc Asphalt requirement)
Photo Credit Bill Fitzgerald PE
Guardrail Index 536-001 Sheets 7-8
Approach Terminals SolutionYES Wrong
First issuehellipFront slope break should be 6 feet behind guardrail face at post 1 per the Standards (110 Min)
Second issuehellipMisc Asphalt should extend 10 feet upstream of post 1 per Standards
Answerhellip
Correctedhellip
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Any issues hereYES Wrong
First issuehellipTrees are within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
Second issuehellipTree violates barrier setback per FDM Table 21542
Answerhellip
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Any issues hereYES Wrong
First issuehellipTrees are within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
Second issuehellipTree violates barrier setback per FDM Table 21542
Answerhellip
Guardrail Index 536-001 Sheets 7-8
Approach TerminalsYES Wrong
First issuehellipTrees are within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
From Standard Planshellip
Guardrail Index 536-001 Sheets 7-8
Approach Terminals
CREDIT VIRGINIA DOT ndash SKT Crash Test Published October 2016
httpswwwyoutubecomwatchv=OsKlfatcjogampfeature=youtube
httpswwwyoutubecomwatchv=h7tct7Oo9-8ampfeature=youtube
YES Wrong
First issuehellipTrees are within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
Guardrail Index 536-001 Sheets 7-8
Approach Terminals
CREDIT VIRGINIA DOT ndash SKT Crash Test Published October 2016
httpswwwyoutubecomwatchv=74ImLTY-PhUampfeature=youtube
YES Wrong
First issuehellipTrees are within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
Guardrail Index 536-001 Sheets 7-8
Approach TerminalsYES Wrong
First issuehellipTrees are within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
From Standard Planshellip
Guardrail Index 536-001
YES Wrong
Second issuehellipTree violates barrier setback per FDM Table 21542
Guardrail Index 536-001
YES Wrong
Second issuehellipTree violates barrier setback per FDM Table 21542
From FDMhellip
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Any issue hereYES Wrong
First issuehellipPerpendicular guardrail is not proven crashworthybull No end treatmentsbull Violates ldquotaper raterdquo
requirements of SPI Part I (big time)
bull Requires shielding if within Clear Zone
Answerhellip
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Any issue hereYES Wrong
Second issuehellipPerpendicular guardrail within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Any issue hereYES Wrong
Third issuehellipPerpendicular guardrail violates barrier setback per FDM Table 21542
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Solution 1
REMOVE theperpendicularGuardrail
Orhellip
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Solution 2
1 Extend Guardrail to meet Length of Need per SPI Part B (Excel lsquoDesign Toolrsquo) which is Roadside Design Guide Eq 5-3
2 Meet minimum barrier setback per FDM Table 21542 (5 feet for general guardrail)
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Final Case StudyAssumptionsbull Design Speed
50 mph
bull Piers designed to withstand 600 kip impact load per FDM215454(Pier Protection Barrier notRequired)
Guardrail Index 536-001
Approach Terminals Any issue hereAnswerhellip YES
First issuehellipPiers NOT shielded
ldquoLength of Needrdquo NOT met per SPI Part B (Excel Design Tool)
Guardrail Index 536-001
Approach Terminals Any issue hereAnswerhellip YES
First issuehellipPiers NOT shielded
ldquoLength of Needrdquo NOT met per SPI Part B (Excel Design Tool)
Piers are behind the ldquogatingrdquo(break-away) portion of Approach Terminal
Guardrail Index 536-001
Approach Terminals Any issue hereYES
Second issuehellipFlared Terminal usage on hold per RDB18-02
Regardlesshellip ldquoTaper Raterdquo too steep here at Approach Terminal (about 13 shown)
Guardrail requires 115 Max Taper Rate per SPI Part I
Guardrail Index 536-001
Approach Terminals Any issue hereAnswerhellip YES
Third issuehellipldquoBarrier Setbackrdquo requirement likely not satisfied
per FDM Table 21542(5 feet or greater)hellip
Guardrail Index 536-001
Approach Terminals Any issue hereYES
Fourth issuehellipldquoTrailing Anchoragerdquo not properly extended downstream of hazard
25-foot Requirement SPI C1 amp lsquoLONrsquo Design Tool (Excel)hellip
Answerhellip
Guardrail Index 536-001
Approach Terminals Any issue hereYES
Fourth issuehellipldquoTrailing Anchoragerdquo not properly extended downstream of hazard
25-foot Requirement SPI C1 amp lsquoLONrsquo Design Tool (Excel)hellip
AnswerhellipFrom lsquoLength of Needrsquo Excel Sheethellip
Guardrail Index 536-001 Crash Cushion Index 544-001
Approach Terminals Solution 1lsquoCrash Cushionrsquobull ldquoSystem Widthrdquo ndash
lsquoWidersquo per SPI 544-001 Part C
bull ldquoLength Restrictionrdquo - per SPI 544-001 Part F
bull Contact Central Office for guidance
Note Define Crash Cushion with provided CADD cellhellipldquoSummary of Permanent Crash Cushions Tablerdquo
Guardrail Index 536-001 Crash Cushion Index 544-001
Approach Terminals Solution 1lsquoCrash Cushionrsquobull Guardrail ldquoreduced
post spacingrdquo to reduce required hazard setback per FDM Table 21542
bull Again contact Central Office for guidance for such limited space
Concrete Barrier Index 521-001 Crash Cushion 544-001
Approach Terminals Solution 2lsquoConcrete Barrierrsquo amp lsquoCrash Cushionrsquo
bull Requires project-specific design
bull Contact Central Office for guidance for such limited space
Questions
Richard Stepp PEStandard Plans Engineer
Central Office Roadway Design(850) 414-4313
richardsteppdotstateflus
Standard Plans Single-Slope Barriers
Guardrail Index 536-001 Sheets 7-8 13-14
Answerhellip
YES
Guardrail system ishellip
not long enough
Rigid Barrier Connection Any issue here
Minimum Length is Length of Approach Transition Connection lsquoLArsquoplus Length of End Treatment lsquoLErsquo
Guardrail Index 536-001 Sheets 7-8 13-14
Rigid Barrier End Shielding Min Length TL-2
lsquoLArsquo 213rsquo
+lsquoLErsquo 406rsquo
=
62rsquo
Guardrail Index 536-001 Sheets 7-8 13-14
Rigid Barrier End Shielding Min Length TL-2
lsquoLArsquo 213rsquo
+lsquoLErsquo 406rsquo
=
62rsquo
Guardrail Index 536-001 Sheets 7-8 13-14
Rigid Barrier End Shielding Min Length TL-3
lsquoLArsquo 306rsquo
+lsquoLErsquo 531rsquo
=
84rsquo
Guardrail Index 536-001 Sheets 7-8 13-14
Rigid Barrier End Shielding Min Length TL-3
lsquoLArsquo 306rsquo
+lsquoLErsquo 531rsquo
=
84rsquoNOTE If these lengths are not possible due to limited space consider the use of a Crash Cushion or a project-specific lsquovariationrsquo to fit the best barrier system possible
Contact Central Office for assistance
Guardrail Index 536-001 Sheets 7-8
Approach Terminals
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Any issues hereAnswerhellip YES
1 Flared terminals not permitted per RDB18-02
2 Curbed conditions require parallel Approach Terminals per Standard Plans ampSPI Part C3 Approach Terminals require lsquoType Ersquo Curb
Guardrail Index 536-001 Sheets 7-8
Approach Terminals
From Standard Planshellip
Answerhellip YES
1 Flared terminals not permitted per RDB18-02
2 Curbed conditions require parallel Approach Terminals per Standard Plans ampSPI Part C3 Approach Terminals require lsquoType Ersquo Curb
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Solution
1 Flared terminals not permitted per RDB18-02
2 Curbed conditions require parallel Approach Terminals per Standard Plans
3 Approach Terminals require lsquoType Ersquo Curb
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Any issues hereYES Wrong
First issuehellipFront slope break should be 6 feet behind guardrail face at post 1 per the Standards (110 Max)
Second issuehellipMisc Asphalt should extend 10 feet upstream of post 1 per Standards
Answerhellip
Guardrail Index 536-001 Sheets 7-8
Approach TerminalsYES Wrong
First issuehellipFront slope break should be 6 feet behind guardrail face at post 1 per the Standards (110 Min)
Second issuehellipMisc Asphalt should extend 10 feet upstream of post 1 per Standards
Answerhellip
From Standard Planshellip
Guardrail Index 536-001 Sheets 7-8
Approach TerminalsYES Wrong
First issuehellipFront slope break should be 6 feet behind guardrail face at post 1 per the Standards (110 Min)
Second issuehellipMisc Asphalt should extend 10 feet upstream of post 1 per Standards
Answerhellip
Example of Poor Slope Break Location (and steep slope not shielded)
Photo Credit Bill Fitzgerald PE
Guardrail Index 536-001 Sheets 7-8
Approach TerminalsYES Wrong
First issuehellipFront slope break should be 6 feet behind guardrail face at post 1 per the Standards (110 Min)
Second issuehellipMisc Asphalt should extend 10 feet upstream of post 1 per Standards
Answerhellip
Example of Poor Grading (The reason for Misc Asphalt requirement)
Photo Credit Bill Fitzgerald PE
Guardrail Index 536-001 Sheets 7-8
Approach Terminals SolutionYES Wrong
First issuehellipFront slope break should be 6 feet behind guardrail face at post 1 per the Standards (110 Min)
Second issuehellipMisc Asphalt should extend 10 feet upstream of post 1 per Standards
Answerhellip
Correctedhellip
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Any issues hereYES Wrong
First issuehellipTrees are within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
Second issuehellipTree violates barrier setback per FDM Table 21542
Answerhellip
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Any issues hereYES Wrong
First issuehellipTrees are within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
Second issuehellipTree violates barrier setback per FDM Table 21542
Answerhellip
Guardrail Index 536-001 Sheets 7-8
Approach TerminalsYES Wrong
First issuehellipTrees are within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
From Standard Planshellip
Guardrail Index 536-001 Sheets 7-8
Approach Terminals
CREDIT VIRGINIA DOT ndash SKT Crash Test Published October 2016
httpswwwyoutubecomwatchv=OsKlfatcjogampfeature=youtube
httpswwwyoutubecomwatchv=h7tct7Oo9-8ampfeature=youtube
YES Wrong
First issuehellipTrees are within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
Guardrail Index 536-001 Sheets 7-8
Approach Terminals
CREDIT VIRGINIA DOT ndash SKT Crash Test Published October 2016
httpswwwyoutubecomwatchv=74ImLTY-PhUampfeature=youtube
YES Wrong
First issuehellipTrees are within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
Guardrail Index 536-001 Sheets 7-8
Approach TerminalsYES Wrong
First issuehellipTrees are within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
From Standard Planshellip
Guardrail Index 536-001
YES Wrong
Second issuehellipTree violates barrier setback per FDM Table 21542
Guardrail Index 536-001
YES Wrong
Second issuehellipTree violates barrier setback per FDM Table 21542
From FDMhellip
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Any issue hereYES Wrong
First issuehellipPerpendicular guardrail is not proven crashworthybull No end treatmentsbull Violates ldquotaper raterdquo
requirements of SPI Part I (big time)
bull Requires shielding if within Clear Zone
Answerhellip
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Any issue hereYES Wrong
Second issuehellipPerpendicular guardrail within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Any issue hereYES Wrong
Third issuehellipPerpendicular guardrail violates barrier setback per FDM Table 21542
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Solution 1
REMOVE theperpendicularGuardrail
Orhellip
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Solution 2
1 Extend Guardrail to meet Length of Need per SPI Part B (Excel lsquoDesign Toolrsquo) which is Roadside Design Guide Eq 5-3
2 Meet minimum barrier setback per FDM Table 21542 (5 feet for general guardrail)
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Final Case StudyAssumptionsbull Design Speed
50 mph
bull Piers designed to withstand 600 kip impact load per FDM215454(Pier Protection Barrier notRequired)
Guardrail Index 536-001
Approach Terminals Any issue hereAnswerhellip YES
First issuehellipPiers NOT shielded
ldquoLength of Needrdquo NOT met per SPI Part B (Excel Design Tool)
Guardrail Index 536-001
Approach Terminals Any issue hereAnswerhellip YES
First issuehellipPiers NOT shielded
ldquoLength of Needrdquo NOT met per SPI Part B (Excel Design Tool)
Piers are behind the ldquogatingrdquo(break-away) portion of Approach Terminal
Guardrail Index 536-001
Approach Terminals Any issue hereYES
Second issuehellipFlared Terminal usage on hold per RDB18-02
Regardlesshellip ldquoTaper Raterdquo too steep here at Approach Terminal (about 13 shown)
Guardrail requires 115 Max Taper Rate per SPI Part I
Guardrail Index 536-001
Approach Terminals Any issue hereAnswerhellip YES
Third issuehellipldquoBarrier Setbackrdquo requirement likely not satisfied
per FDM Table 21542(5 feet or greater)hellip
Guardrail Index 536-001
Approach Terminals Any issue hereYES
Fourth issuehellipldquoTrailing Anchoragerdquo not properly extended downstream of hazard
25-foot Requirement SPI C1 amp lsquoLONrsquo Design Tool (Excel)hellip
Answerhellip
Guardrail Index 536-001
Approach Terminals Any issue hereYES
Fourth issuehellipldquoTrailing Anchoragerdquo not properly extended downstream of hazard
25-foot Requirement SPI C1 amp lsquoLONrsquo Design Tool (Excel)hellip
AnswerhellipFrom lsquoLength of Needrsquo Excel Sheethellip
Guardrail Index 536-001 Crash Cushion Index 544-001
Approach Terminals Solution 1lsquoCrash Cushionrsquobull ldquoSystem Widthrdquo ndash
lsquoWidersquo per SPI 544-001 Part C
bull ldquoLength Restrictionrdquo - per SPI 544-001 Part F
bull Contact Central Office for guidance
Note Define Crash Cushion with provided CADD cellhellipldquoSummary of Permanent Crash Cushions Tablerdquo
Guardrail Index 536-001 Crash Cushion Index 544-001
Approach Terminals Solution 1lsquoCrash Cushionrsquobull Guardrail ldquoreduced
post spacingrdquo to reduce required hazard setback per FDM Table 21542
bull Again contact Central Office for guidance for such limited space
Concrete Barrier Index 521-001 Crash Cushion 544-001
Approach Terminals Solution 2lsquoConcrete Barrierrsquo amp lsquoCrash Cushionrsquo
bull Requires project-specific design
bull Contact Central Office for guidance for such limited space
Questions
Richard Stepp PEStandard Plans Engineer
Central Office Roadway Design(850) 414-4313
richardsteppdotstateflus
Standard Plans Single-Slope Barriers
Guardrail Index 536-001 Sheets 7-8 13-14
Rigid Barrier End Shielding Min Length TL-2
lsquoLArsquo 213rsquo
+lsquoLErsquo 406rsquo
=
62rsquo
Guardrail Index 536-001 Sheets 7-8 13-14
Rigid Barrier End Shielding Min Length TL-2
lsquoLArsquo 213rsquo
+lsquoLErsquo 406rsquo
=
62rsquo
Guardrail Index 536-001 Sheets 7-8 13-14
Rigid Barrier End Shielding Min Length TL-3
lsquoLArsquo 306rsquo
+lsquoLErsquo 531rsquo
=
84rsquo
Guardrail Index 536-001 Sheets 7-8 13-14
Rigid Barrier End Shielding Min Length TL-3
lsquoLArsquo 306rsquo
+lsquoLErsquo 531rsquo
=
84rsquoNOTE If these lengths are not possible due to limited space consider the use of a Crash Cushion or a project-specific lsquovariationrsquo to fit the best barrier system possible
Contact Central Office for assistance
Guardrail Index 536-001 Sheets 7-8
Approach Terminals
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Any issues hereAnswerhellip YES
1 Flared terminals not permitted per RDB18-02
2 Curbed conditions require parallel Approach Terminals per Standard Plans ampSPI Part C3 Approach Terminals require lsquoType Ersquo Curb
Guardrail Index 536-001 Sheets 7-8
Approach Terminals
From Standard Planshellip
Answerhellip YES
1 Flared terminals not permitted per RDB18-02
2 Curbed conditions require parallel Approach Terminals per Standard Plans ampSPI Part C3 Approach Terminals require lsquoType Ersquo Curb
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Solution
1 Flared terminals not permitted per RDB18-02
2 Curbed conditions require parallel Approach Terminals per Standard Plans
3 Approach Terminals require lsquoType Ersquo Curb
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Any issues hereYES Wrong
First issuehellipFront slope break should be 6 feet behind guardrail face at post 1 per the Standards (110 Max)
Second issuehellipMisc Asphalt should extend 10 feet upstream of post 1 per Standards
Answerhellip
Guardrail Index 536-001 Sheets 7-8
Approach TerminalsYES Wrong
First issuehellipFront slope break should be 6 feet behind guardrail face at post 1 per the Standards (110 Min)
Second issuehellipMisc Asphalt should extend 10 feet upstream of post 1 per Standards
Answerhellip
From Standard Planshellip
Guardrail Index 536-001 Sheets 7-8
Approach TerminalsYES Wrong
First issuehellipFront slope break should be 6 feet behind guardrail face at post 1 per the Standards (110 Min)
Second issuehellipMisc Asphalt should extend 10 feet upstream of post 1 per Standards
Answerhellip
Example of Poor Slope Break Location (and steep slope not shielded)
Photo Credit Bill Fitzgerald PE
Guardrail Index 536-001 Sheets 7-8
Approach TerminalsYES Wrong
First issuehellipFront slope break should be 6 feet behind guardrail face at post 1 per the Standards (110 Min)
Second issuehellipMisc Asphalt should extend 10 feet upstream of post 1 per Standards
Answerhellip
Example of Poor Grading (The reason for Misc Asphalt requirement)
Photo Credit Bill Fitzgerald PE
Guardrail Index 536-001 Sheets 7-8
Approach Terminals SolutionYES Wrong
First issuehellipFront slope break should be 6 feet behind guardrail face at post 1 per the Standards (110 Min)
Second issuehellipMisc Asphalt should extend 10 feet upstream of post 1 per Standards
Answerhellip
Correctedhellip
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Any issues hereYES Wrong
First issuehellipTrees are within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
Second issuehellipTree violates barrier setback per FDM Table 21542
Answerhellip
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Any issues hereYES Wrong
First issuehellipTrees are within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
Second issuehellipTree violates barrier setback per FDM Table 21542
Answerhellip
Guardrail Index 536-001 Sheets 7-8
Approach TerminalsYES Wrong
First issuehellipTrees are within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
From Standard Planshellip
Guardrail Index 536-001 Sheets 7-8
Approach Terminals
CREDIT VIRGINIA DOT ndash SKT Crash Test Published October 2016
httpswwwyoutubecomwatchv=OsKlfatcjogampfeature=youtube
httpswwwyoutubecomwatchv=h7tct7Oo9-8ampfeature=youtube
YES Wrong
First issuehellipTrees are within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
Guardrail Index 536-001 Sheets 7-8
Approach Terminals
CREDIT VIRGINIA DOT ndash SKT Crash Test Published October 2016
httpswwwyoutubecomwatchv=74ImLTY-PhUampfeature=youtube
YES Wrong
First issuehellipTrees are within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
Guardrail Index 536-001 Sheets 7-8
Approach TerminalsYES Wrong
First issuehellipTrees are within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
From Standard Planshellip
Guardrail Index 536-001
YES Wrong
Second issuehellipTree violates barrier setback per FDM Table 21542
Guardrail Index 536-001
YES Wrong
Second issuehellipTree violates barrier setback per FDM Table 21542
From FDMhellip
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Any issue hereYES Wrong
First issuehellipPerpendicular guardrail is not proven crashworthybull No end treatmentsbull Violates ldquotaper raterdquo
requirements of SPI Part I (big time)
bull Requires shielding if within Clear Zone
Answerhellip
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Any issue hereYES Wrong
Second issuehellipPerpendicular guardrail within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Any issue hereYES Wrong
Third issuehellipPerpendicular guardrail violates barrier setback per FDM Table 21542
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Solution 1
REMOVE theperpendicularGuardrail
Orhellip
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Solution 2
1 Extend Guardrail to meet Length of Need per SPI Part B (Excel lsquoDesign Toolrsquo) which is Roadside Design Guide Eq 5-3
2 Meet minimum barrier setback per FDM Table 21542 (5 feet for general guardrail)
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Final Case StudyAssumptionsbull Design Speed
50 mph
bull Piers designed to withstand 600 kip impact load per FDM215454(Pier Protection Barrier notRequired)
Guardrail Index 536-001
Approach Terminals Any issue hereAnswerhellip YES
First issuehellipPiers NOT shielded
ldquoLength of Needrdquo NOT met per SPI Part B (Excel Design Tool)
Guardrail Index 536-001
Approach Terminals Any issue hereAnswerhellip YES
First issuehellipPiers NOT shielded
ldquoLength of Needrdquo NOT met per SPI Part B (Excel Design Tool)
Piers are behind the ldquogatingrdquo(break-away) portion of Approach Terminal
Guardrail Index 536-001
Approach Terminals Any issue hereYES
Second issuehellipFlared Terminal usage on hold per RDB18-02
Regardlesshellip ldquoTaper Raterdquo too steep here at Approach Terminal (about 13 shown)
Guardrail requires 115 Max Taper Rate per SPI Part I
Guardrail Index 536-001
Approach Terminals Any issue hereAnswerhellip YES
Third issuehellipldquoBarrier Setbackrdquo requirement likely not satisfied
per FDM Table 21542(5 feet or greater)hellip
Guardrail Index 536-001
Approach Terminals Any issue hereYES
Fourth issuehellipldquoTrailing Anchoragerdquo not properly extended downstream of hazard
25-foot Requirement SPI C1 amp lsquoLONrsquo Design Tool (Excel)hellip
Answerhellip
Guardrail Index 536-001
Approach Terminals Any issue hereYES
Fourth issuehellipldquoTrailing Anchoragerdquo not properly extended downstream of hazard
25-foot Requirement SPI C1 amp lsquoLONrsquo Design Tool (Excel)hellip
AnswerhellipFrom lsquoLength of Needrsquo Excel Sheethellip
Guardrail Index 536-001 Crash Cushion Index 544-001
Approach Terminals Solution 1lsquoCrash Cushionrsquobull ldquoSystem Widthrdquo ndash
lsquoWidersquo per SPI 544-001 Part C
bull ldquoLength Restrictionrdquo - per SPI 544-001 Part F
bull Contact Central Office for guidance
Note Define Crash Cushion with provided CADD cellhellipldquoSummary of Permanent Crash Cushions Tablerdquo
Guardrail Index 536-001 Crash Cushion Index 544-001
Approach Terminals Solution 1lsquoCrash Cushionrsquobull Guardrail ldquoreduced
post spacingrdquo to reduce required hazard setback per FDM Table 21542
bull Again contact Central Office for guidance for such limited space
Concrete Barrier Index 521-001 Crash Cushion 544-001
Approach Terminals Solution 2lsquoConcrete Barrierrsquo amp lsquoCrash Cushionrsquo
bull Requires project-specific design
bull Contact Central Office for guidance for such limited space
Questions
Richard Stepp PEStandard Plans Engineer
Central Office Roadway Design(850) 414-4313
richardsteppdotstateflus
Standard Plans Single-Slope Barriers
Guardrail Index 536-001 Sheets 7-8 13-14
Rigid Barrier End Shielding Min Length TL-2
lsquoLArsquo 213rsquo
+lsquoLErsquo 406rsquo
=
62rsquo
Guardrail Index 536-001 Sheets 7-8 13-14
Rigid Barrier End Shielding Min Length TL-3
lsquoLArsquo 306rsquo
+lsquoLErsquo 531rsquo
=
84rsquo
Guardrail Index 536-001 Sheets 7-8 13-14
Rigid Barrier End Shielding Min Length TL-3
lsquoLArsquo 306rsquo
+lsquoLErsquo 531rsquo
=
84rsquoNOTE If these lengths are not possible due to limited space consider the use of a Crash Cushion or a project-specific lsquovariationrsquo to fit the best barrier system possible
Contact Central Office for assistance
Guardrail Index 536-001 Sheets 7-8
Approach Terminals
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Any issues hereAnswerhellip YES
1 Flared terminals not permitted per RDB18-02
2 Curbed conditions require parallel Approach Terminals per Standard Plans ampSPI Part C3 Approach Terminals require lsquoType Ersquo Curb
Guardrail Index 536-001 Sheets 7-8
Approach Terminals
From Standard Planshellip
Answerhellip YES
1 Flared terminals not permitted per RDB18-02
2 Curbed conditions require parallel Approach Terminals per Standard Plans ampSPI Part C3 Approach Terminals require lsquoType Ersquo Curb
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Solution
1 Flared terminals not permitted per RDB18-02
2 Curbed conditions require parallel Approach Terminals per Standard Plans
3 Approach Terminals require lsquoType Ersquo Curb
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Any issues hereYES Wrong
First issuehellipFront slope break should be 6 feet behind guardrail face at post 1 per the Standards (110 Max)
Second issuehellipMisc Asphalt should extend 10 feet upstream of post 1 per Standards
Answerhellip
Guardrail Index 536-001 Sheets 7-8
Approach TerminalsYES Wrong
First issuehellipFront slope break should be 6 feet behind guardrail face at post 1 per the Standards (110 Min)
Second issuehellipMisc Asphalt should extend 10 feet upstream of post 1 per Standards
Answerhellip
From Standard Planshellip
Guardrail Index 536-001 Sheets 7-8
Approach TerminalsYES Wrong
First issuehellipFront slope break should be 6 feet behind guardrail face at post 1 per the Standards (110 Min)
Second issuehellipMisc Asphalt should extend 10 feet upstream of post 1 per Standards
Answerhellip
Example of Poor Slope Break Location (and steep slope not shielded)
Photo Credit Bill Fitzgerald PE
Guardrail Index 536-001 Sheets 7-8
Approach TerminalsYES Wrong
First issuehellipFront slope break should be 6 feet behind guardrail face at post 1 per the Standards (110 Min)
Second issuehellipMisc Asphalt should extend 10 feet upstream of post 1 per Standards
Answerhellip
Example of Poor Grading (The reason for Misc Asphalt requirement)
Photo Credit Bill Fitzgerald PE
Guardrail Index 536-001 Sheets 7-8
Approach Terminals SolutionYES Wrong
First issuehellipFront slope break should be 6 feet behind guardrail face at post 1 per the Standards (110 Min)
Second issuehellipMisc Asphalt should extend 10 feet upstream of post 1 per Standards
Answerhellip
Correctedhellip
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Any issues hereYES Wrong
First issuehellipTrees are within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
Second issuehellipTree violates barrier setback per FDM Table 21542
Answerhellip
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Any issues hereYES Wrong
First issuehellipTrees are within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
Second issuehellipTree violates barrier setback per FDM Table 21542
Answerhellip
Guardrail Index 536-001 Sheets 7-8
Approach TerminalsYES Wrong
First issuehellipTrees are within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
From Standard Planshellip
Guardrail Index 536-001 Sheets 7-8
Approach Terminals
CREDIT VIRGINIA DOT ndash SKT Crash Test Published October 2016
httpswwwyoutubecomwatchv=OsKlfatcjogampfeature=youtube
httpswwwyoutubecomwatchv=h7tct7Oo9-8ampfeature=youtube
YES Wrong
First issuehellipTrees are within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
Guardrail Index 536-001 Sheets 7-8
Approach Terminals
CREDIT VIRGINIA DOT ndash SKT Crash Test Published October 2016
httpswwwyoutubecomwatchv=74ImLTY-PhUampfeature=youtube
YES Wrong
First issuehellipTrees are within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
Guardrail Index 536-001 Sheets 7-8
Approach TerminalsYES Wrong
First issuehellipTrees are within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
From Standard Planshellip
Guardrail Index 536-001
YES Wrong
Second issuehellipTree violates barrier setback per FDM Table 21542
Guardrail Index 536-001
YES Wrong
Second issuehellipTree violates barrier setback per FDM Table 21542
From FDMhellip
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Any issue hereYES Wrong
First issuehellipPerpendicular guardrail is not proven crashworthybull No end treatmentsbull Violates ldquotaper raterdquo
requirements of SPI Part I (big time)
bull Requires shielding if within Clear Zone
Answerhellip
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Any issue hereYES Wrong
Second issuehellipPerpendicular guardrail within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Any issue hereYES Wrong
Third issuehellipPerpendicular guardrail violates barrier setback per FDM Table 21542
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Solution 1
REMOVE theperpendicularGuardrail
Orhellip
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Solution 2
1 Extend Guardrail to meet Length of Need per SPI Part B (Excel lsquoDesign Toolrsquo) which is Roadside Design Guide Eq 5-3
2 Meet minimum barrier setback per FDM Table 21542 (5 feet for general guardrail)
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Final Case StudyAssumptionsbull Design Speed
50 mph
bull Piers designed to withstand 600 kip impact load per FDM215454(Pier Protection Barrier notRequired)
Guardrail Index 536-001
Approach Terminals Any issue hereAnswerhellip YES
First issuehellipPiers NOT shielded
ldquoLength of Needrdquo NOT met per SPI Part B (Excel Design Tool)
Guardrail Index 536-001
Approach Terminals Any issue hereAnswerhellip YES
First issuehellipPiers NOT shielded
ldquoLength of Needrdquo NOT met per SPI Part B (Excel Design Tool)
Piers are behind the ldquogatingrdquo(break-away) portion of Approach Terminal
Guardrail Index 536-001
Approach Terminals Any issue hereYES
Second issuehellipFlared Terminal usage on hold per RDB18-02
Regardlesshellip ldquoTaper Raterdquo too steep here at Approach Terminal (about 13 shown)
Guardrail requires 115 Max Taper Rate per SPI Part I
Guardrail Index 536-001
Approach Terminals Any issue hereAnswerhellip YES
Third issuehellipldquoBarrier Setbackrdquo requirement likely not satisfied
per FDM Table 21542(5 feet or greater)hellip
Guardrail Index 536-001
Approach Terminals Any issue hereYES
Fourth issuehellipldquoTrailing Anchoragerdquo not properly extended downstream of hazard
25-foot Requirement SPI C1 amp lsquoLONrsquo Design Tool (Excel)hellip
Answerhellip
Guardrail Index 536-001
Approach Terminals Any issue hereYES
Fourth issuehellipldquoTrailing Anchoragerdquo not properly extended downstream of hazard
25-foot Requirement SPI C1 amp lsquoLONrsquo Design Tool (Excel)hellip
AnswerhellipFrom lsquoLength of Needrsquo Excel Sheethellip
Guardrail Index 536-001 Crash Cushion Index 544-001
Approach Terminals Solution 1lsquoCrash Cushionrsquobull ldquoSystem Widthrdquo ndash
lsquoWidersquo per SPI 544-001 Part C
bull ldquoLength Restrictionrdquo - per SPI 544-001 Part F
bull Contact Central Office for guidance
Note Define Crash Cushion with provided CADD cellhellipldquoSummary of Permanent Crash Cushions Tablerdquo
Guardrail Index 536-001 Crash Cushion Index 544-001
Approach Terminals Solution 1lsquoCrash Cushionrsquobull Guardrail ldquoreduced
post spacingrdquo to reduce required hazard setback per FDM Table 21542
bull Again contact Central Office for guidance for such limited space
Concrete Barrier Index 521-001 Crash Cushion 544-001
Approach Terminals Solution 2lsquoConcrete Barrierrsquo amp lsquoCrash Cushionrsquo
bull Requires project-specific design
bull Contact Central Office for guidance for such limited space
Questions
Richard Stepp PEStandard Plans Engineer
Central Office Roadway Design(850) 414-4313
richardsteppdotstateflus
Standard Plans Single-Slope Barriers
Guardrail Index 536-001 Sheets 7-8 13-14
Rigid Barrier End Shielding Min Length TL-3
lsquoLArsquo 306rsquo
+lsquoLErsquo 531rsquo
=
84rsquo
Guardrail Index 536-001 Sheets 7-8 13-14
Rigid Barrier End Shielding Min Length TL-3
lsquoLArsquo 306rsquo
+lsquoLErsquo 531rsquo
=
84rsquoNOTE If these lengths are not possible due to limited space consider the use of a Crash Cushion or a project-specific lsquovariationrsquo to fit the best barrier system possible
Contact Central Office for assistance
Guardrail Index 536-001 Sheets 7-8
Approach Terminals
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Any issues hereAnswerhellip YES
1 Flared terminals not permitted per RDB18-02
2 Curbed conditions require parallel Approach Terminals per Standard Plans ampSPI Part C3 Approach Terminals require lsquoType Ersquo Curb
Guardrail Index 536-001 Sheets 7-8
Approach Terminals
From Standard Planshellip
Answerhellip YES
1 Flared terminals not permitted per RDB18-02
2 Curbed conditions require parallel Approach Terminals per Standard Plans ampSPI Part C3 Approach Terminals require lsquoType Ersquo Curb
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Solution
1 Flared terminals not permitted per RDB18-02
2 Curbed conditions require parallel Approach Terminals per Standard Plans
3 Approach Terminals require lsquoType Ersquo Curb
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Any issues hereYES Wrong
First issuehellipFront slope break should be 6 feet behind guardrail face at post 1 per the Standards (110 Max)
Second issuehellipMisc Asphalt should extend 10 feet upstream of post 1 per Standards
Answerhellip
Guardrail Index 536-001 Sheets 7-8
Approach TerminalsYES Wrong
First issuehellipFront slope break should be 6 feet behind guardrail face at post 1 per the Standards (110 Min)
Second issuehellipMisc Asphalt should extend 10 feet upstream of post 1 per Standards
Answerhellip
From Standard Planshellip
Guardrail Index 536-001 Sheets 7-8
Approach TerminalsYES Wrong
First issuehellipFront slope break should be 6 feet behind guardrail face at post 1 per the Standards (110 Min)
Second issuehellipMisc Asphalt should extend 10 feet upstream of post 1 per Standards
Answerhellip
Example of Poor Slope Break Location (and steep slope not shielded)
Photo Credit Bill Fitzgerald PE
Guardrail Index 536-001 Sheets 7-8
Approach TerminalsYES Wrong
First issuehellipFront slope break should be 6 feet behind guardrail face at post 1 per the Standards (110 Min)
Second issuehellipMisc Asphalt should extend 10 feet upstream of post 1 per Standards
Answerhellip
Example of Poor Grading (The reason for Misc Asphalt requirement)
Photo Credit Bill Fitzgerald PE
Guardrail Index 536-001 Sheets 7-8
Approach Terminals SolutionYES Wrong
First issuehellipFront slope break should be 6 feet behind guardrail face at post 1 per the Standards (110 Min)
Second issuehellipMisc Asphalt should extend 10 feet upstream of post 1 per Standards
Answerhellip
Correctedhellip
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Any issues hereYES Wrong
First issuehellipTrees are within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
Second issuehellipTree violates barrier setback per FDM Table 21542
Answerhellip
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Any issues hereYES Wrong
First issuehellipTrees are within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
Second issuehellipTree violates barrier setback per FDM Table 21542
Answerhellip
Guardrail Index 536-001 Sheets 7-8
Approach TerminalsYES Wrong
First issuehellipTrees are within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
From Standard Planshellip
Guardrail Index 536-001 Sheets 7-8
Approach Terminals
CREDIT VIRGINIA DOT ndash SKT Crash Test Published October 2016
httpswwwyoutubecomwatchv=OsKlfatcjogampfeature=youtube
httpswwwyoutubecomwatchv=h7tct7Oo9-8ampfeature=youtube
YES Wrong
First issuehellipTrees are within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
Guardrail Index 536-001 Sheets 7-8
Approach Terminals
CREDIT VIRGINIA DOT ndash SKT Crash Test Published October 2016
httpswwwyoutubecomwatchv=74ImLTY-PhUampfeature=youtube
YES Wrong
First issuehellipTrees are within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
Guardrail Index 536-001 Sheets 7-8
Approach TerminalsYES Wrong
First issuehellipTrees are within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
From Standard Planshellip
Guardrail Index 536-001
YES Wrong
Second issuehellipTree violates barrier setback per FDM Table 21542
Guardrail Index 536-001
YES Wrong
Second issuehellipTree violates barrier setback per FDM Table 21542
From FDMhellip
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Any issue hereYES Wrong
First issuehellipPerpendicular guardrail is not proven crashworthybull No end treatmentsbull Violates ldquotaper raterdquo
requirements of SPI Part I (big time)
bull Requires shielding if within Clear Zone
Answerhellip
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Any issue hereYES Wrong
Second issuehellipPerpendicular guardrail within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Any issue hereYES Wrong
Third issuehellipPerpendicular guardrail violates barrier setback per FDM Table 21542
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Solution 1
REMOVE theperpendicularGuardrail
Orhellip
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Solution 2
1 Extend Guardrail to meet Length of Need per SPI Part B (Excel lsquoDesign Toolrsquo) which is Roadside Design Guide Eq 5-3
2 Meet minimum barrier setback per FDM Table 21542 (5 feet for general guardrail)
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Final Case StudyAssumptionsbull Design Speed
50 mph
bull Piers designed to withstand 600 kip impact load per FDM215454(Pier Protection Barrier notRequired)
Guardrail Index 536-001
Approach Terminals Any issue hereAnswerhellip YES
First issuehellipPiers NOT shielded
ldquoLength of Needrdquo NOT met per SPI Part B (Excel Design Tool)
Guardrail Index 536-001
Approach Terminals Any issue hereAnswerhellip YES
First issuehellipPiers NOT shielded
ldquoLength of Needrdquo NOT met per SPI Part B (Excel Design Tool)
Piers are behind the ldquogatingrdquo(break-away) portion of Approach Terminal
Guardrail Index 536-001
Approach Terminals Any issue hereYES
Second issuehellipFlared Terminal usage on hold per RDB18-02
Regardlesshellip ldquoTaper Raterdquo too steep here at Approach Terminal (about 13 shown)
Guardrail requires 115 Max Taper Rate per SPI Part I
Guardrail Index 536-001
Approach Terminals Any issue hereAnswerhellip YES
Third issuehellipldquoBarrier Setbackrdquo requirement likely not satisfied
per FDM Table 21542(5 feet or greater)hellip
Guardrail Index 536-001
Approach Terminals Any issue hereYES
Fourth issuehellipldquoTrailing Anchoragerdquo not properly extended downstream of hazard
25-foot Requirement SPI C1 amp lsquoLONrsquo Design Tool (Excel)hellip
Answerhellip
Guardrail Index 536-001
Approach Terminals Any issue hereYES
Fourth issuehellipldquoTrailing Anchoragerdquo not properly extended downstream of hazard
25-foot Requirement SPI C1 amp lsquoLONrsquo Design Tool (Excel)hellip
AnswerhellipFrom lsquoLength of Needrsquo Excel Sheethellip
Guardrail Index 536-001 Crash Cushion Index 544-001
Approach Terminals Solution 1lsquoCrash Cushionrsquobull ldquoSystem Widthrdquo ndash
lsquoWidersquo per SPI 544-001 Part C
bull ldquoLength Restrictionrdquo - per SPI 544-001 Part F
bull Contact Central Office for guidance
Note Define Crash Cushion with provided CADD cellhellipldquoSummary of Permanent Crash Cushions Tablerdquo
Guardrail Index 536-001 Crash Cushion Index 544-001
Approach Terminals Solution 1lsquoCrash Cushionrsquobull Guardrail ldquoreduced
post spacingrdquo to reduce required hazard setback per FDM Table 21542
bull Again contact Central Office for guidance for such limited space
Concrete Barrier Index 521-001 Crash Cushion 544-001
Approach Terminals Solution 2lsquoConcrete Barrierrsquo amp lsquoCrash Cushionrsquo
bull Requires project-specific design
bull Contact Central Office for guidance for such limited space
Questions
Richard Stepp PEStandard Plans Engineer
Central Office Roadway Design(850) 414-4313
richardsteppdotstateflus
Standard Plans Single-Slope Barriers
Guardrail Index 536-001 Sheets 7-8 13-14
Rigid Barrier End Shielding Min Length TL-3
lsquoLArsquo 306rsquo
+lsquoLErsquo 531rsquo
=
84rsquoNOTE If these lengths are not possible due to limited space consider the use of a Crash Cushion or a project-specific lsquovariationrsquo to fit the best barrier system possible
Contact Central Office for assistance
Guardrail Index 536-001 Sheets 7-8
Approach Terminals
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Any issues hereAnswerhellip YES
1 Flared terminals not permitted per RDB18-02
2 Curbed conditions require parallel Approach Terminals per Standard Plans ampSPI Part C3 Approach Terminals require lsquoType Ersquo Curb
Guardrail Index 536-001 Sheets 7-8
Approach Terminals
From Standard Planshellip
Answerhellip YES
1 Flared terminals not permitted per RDB18-02
2 Curbed conditions require parallel Approach Terminals per Standard Plans ampSPI Part C3 Approach Terminals require lsquoType Ersquo Curb
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Solution
1 Flared terminals not permitted per RDB18-02
2 Curbed conditions require parallel Approach Terminals per Standard Plans
3 Approach Terminals require lsquoType Ersquo Curb
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Any issues hereYES Wrong
First issuehellipFront slope break should be 6 feet behind guardrail face at post 1 per the Standards (110 Max)
Second issuehellipMisc Asphalt should extend 10 feet upstream of post 1 per Standards
Answerhellip
Guardrail Index 536-001 Sheets 7-8
Approach TerminalsYES Wrong
First issuehellipFront slope break should be 6 feet behind guardrail face at post 1 per the Standards (110 Min)
Second issuehellipMisc Asphalt should extend 10 feet upstream of post 1 per Standards
Answerhellip
From Standard Planshellip
Guardrail Index 536-001 Sheets 7-8
Approach TerminalsYES Wrong
First issuehellipFront slope break should be 6 feet behind guardrail face at post 1 per the Standards (110 Min)
Second issuehellipMisc Asphalt should extend 10 feet upstream of post 1 per Standards
Answerhellip
Example of Poor Slope Break Location (and steep slope not shielded)
Photo Credit Bill Fitzgerald PE
Guardrail Index 536-001 Sheets 7-8
Approach TerminalsYES Wrong
First issuehellipFront slope break should be 6 feet behind guardrail face at post 1 per the Standards (110 Min)
Second issuehellipMisc Asphalt should extend 10 feet upstream of post 1 per Standards
Answerhellip
Example of Poor Grading (The reason for Misc Asphalt requirement)
Photo Credit Bill Fitzgerald PE
Guardrail Index 536-001 Sheets 7-8
Approach Terminals SolutionYES Wrong
First issuehellipFront slope break should be 6 feet behind guardrail face at post 1 per the Standards (110 Min)
Second issuehellipMisc Asphalt should extend 10 feet upstream of post 1 per Standards
Answerhellip
Correctedhellip
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Any issues hereYES Wrong
First issuehellipTrees are within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
Second issuehellipTree violates barrier setback per FDM Table 21542
Answerhellip
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Any issues hereYES Wrong
First issuehellipTrees are within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
Second issuehellipTree violates barrier setback per FDM Table 21542
Answerhellip
Guardrail Index 536-001 Sheets 7-8
Approach TerminalsYES Wrong
First issuehellipTrees are within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
From Standard Planshellip
Guardrail Index 536-001 Sheets 7-8
Approach Terminals
CREDIT VIRGINIA DOT ndash SKT Crash Test Published October 2016
httpswwwyoutubecomwatchv=OsKlfatcjogampfeature=youtube
httpswwwyoutubecomwatchv=h7tct7Oo9-8ampfeature=youtube
YES Wrong
First issuehellipTrees are within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
Guardrail Index 536-001 Sheets 7-8
Approach Terminals
CREDIT VIRGINIA DOT ndash SKT Crash Test Published October 2016
httpswwwyoutubecomwatchv=74ImLTY-PhUampfeature=youtube
YES Wrong
First issuehellipTrees are within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
Guardrail Index 536-001 Sheets 7-8
Approach TerminalsYES Wrong
First issuehellipTrees are within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
From Standard Planshellip
Guardrail Index 536-001
YES Wrong
Second issuehellipTree violates barrier setback per FDM Table 21542
Guardrail Index 536-001
YES Wrong
Second issuehellipTree violates barrier setback per FDM Table 21542
From FDMhellip
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Any issue hereYES Wrong
First issuehellipPerpendicular guardrail is not proven crashworthybull No end treatmentsbull Violates ldquotaper raterdquo
requirements of SPI Part I (big time)
bull Requires shielding if within Clear Zone
Answerhellip
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Any issue hereYES Wrong
Second issuehellipPerpendicular guardrail within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Any issue hereYES Wrong
Third issuehellipPerpendicular guardrail violates barrier setback per FDM Table 21542
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Solution 1
REMOVE theperpendicularGuardrail
Orhellip
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Solution 2
1 Extend Guardrail to meet Length of Need per SPI Part B (Excel lsquoDesign Toolrsquo) which is Roadside Design Guide Eq 5-3
2 Meet minimum barrier setback per FDM Table 21542 (5 feet for general guardrail)
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Final Case StudyAssumptionsbull Design Speed
50 mph
bull Piers designed to withstand 600 kip impact load per FDM215454(Pier Protection Barrier notRequired)
Guardrail Index 536-001
Approach Terminals Any issue hereAnswerhellip YES
First issuehellipPiers NOT shielded
ldquoLength of Needrdquo NOT met per SPI Part B (Excel Design Tool)
Guardrail Index 536-001
Approach Terminals Any issue hereAnswerhellip YES
First issuehellipPiers NOT shielded
ldquoLength of Needrdquo NOT met per SPI Part B (Excel Design Tool)
Piers are behind the ldquogatingrdquo(break-away) portion of Approach Terminal
Guardrail Index 536-001
Approach Terminals Any issue hereYES
Second issuehellipFlared Terminal usage on hold per RDB18-02
Regardlesshellip ldquoTaper Raterdquo too steep here at Approach Terminal (about 13 shown)
Guardrail requires 115 Max Taper Rate per SPI Part I
Guardrail Index 536-001
Approach Terminals Any issue hereAnswerhellip YES
Third issuehellipldquoBarrier Setbackrdquo requirement likely not satisfied
per FDM Table 21542(5 feet or greater)hellip
Guardrail Index 536-001
Approach Terminals Any issue hereYES
Fourth issuehellipldquoTrailing Anchoragerdquo not properly extended downstream of hazard
25-foot Requirement SPI C1 amp lsquoLONrsquo Design Tool (Excel)hellip
Answerhellip
Guardrail Index 536-001
Approach Terminals Any issue hereYES
Fourth issuehellipldquoTrailing Anchoragerdquo not properly extended downstream of hazard
25-foot Requirement SPI C1 amp lsquoLONrsquo Design Tool (Excel)hellip
AnswerhellipFrom lsquoLength of Needrsquo Excel Sheethellip
Guardrail Index 536-001 Crash Cushion Index 544-001
Approach Terminals Solution 1lsquoCrash Cushionrsquobull ldquoSystem Widthrdquo ndash
lsquoWidersquo per SPI 544-001 Part C
bull ldquoLength Restrictionrdquo - per SPI 544-001 Part F
bull Contact Central Office for guidance
Note Define Crash Cushion with provided CADD cellhellipldquoSummary of Permanent Crash Cushions Tablerdquo
Guardrail Index 536-001 Crash Cushion Index 544-001
Approach Terminals Solution 1lsquoCrash Cushionrsquobull Guardrail ldquoreduced
post spacingrdquo to reduce required hazard setback per FDM Table 21542
bull Again contact Central Office for guidance for such limited space
Concrete Barrier Index 521-001 Crash Cushion 544-001
Approach Terminals Solution 2lsquoConcrete Barrierrsquo amp lsquoCrash Cushionrsquo
bull Requires project-specific design
bull Contact Central Office for guidance for such limited space
Questions
Richard Stepp PEStandard Plans Engineer
Central Office Roadway Design(850) 414-4313
richardsteppdotstateflus
Standard Plans Single-Slope Barriers
Guardrail Index 536-001 Sheets 7-8
Approach Terminals
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Any issues hereAnswerhellip YES
1 Flared terminals not permitted per RDB18-02
2 Curbed conditions require parallel Approach Terminals per Standard Plans ampSPI Part C3 Approach Terminals require lsquoType Ersquo Curb
Guardrail Index 536-001 Sheets 7-8
Approach Terminals
From Standard Planshellip
Answerhellip YES
1 Flared terminals not permitted per RDB18-02
2 Curbed conditions require parallel Approach Terminals per Standard Plans ampSPI Part C3 Approach Terminals require lsquoType Ersquo Curb
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Solution
1 Flared terminals not permitted per RDB18-02
2 Curbed conditions require parallel Approach Terminals per Standard Plans
3 Approach Terminals require lsquoType Ersquo Curb
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Any issues hereYES Wrong
First issuehellipFront slope break should be 6 feet behind guardrail face at post 1 per the Standards (110 Max)
Second issuehellipMisc Asphalt should extend 10 feet upstream of post 1 per Standards
Answerhellip
Guardrail Index 536-001 Sheets 7-8
Approach TerminalsYES Wrong
First issuehellipFront slope break should be 6 feet behind guardrail face at post 1 per the Standards (110 Min)
Second issuehellipMisc Asphalt should extend 10 feet upstream of post 1 per Standards
Answerhellip
From Standard Planshellip
Guardrail Index 536-001 Sheets 7-8
Approach TerminalsYES Wrong
First issuehellipFront slope break should be 6 feet behind guardrail face at post 1 per the Standards (110 Min)
Second issuehellipMisc Asphalt should extend 10 feet upstream of post 1 per Standards
Answerhellip
Example of Poor Slope Break Location (and steep slope not shielded)
Photo Credit Bill Fitzgerald PE
Guardrail Index 536-001 Sheets 7-8
Approach TerminalsYES Wrong
First issuehellipFront slope break should be 6 feet behind guardrail face at post 1 per the Standards (110 Min)
Second issuehellipMisc Asphalt should extend 10 feet upstream of post 1 per Standards
Answerhellip
Example of Poor Grading (The reason for Misc Asphalt requirement)
Photo Credit Bill Fitzgerald PE
Guardrail Index 536-001 Sheets 7-8
Approach Terminals SolutionYES Wrong
First issuehellipFront slope break should be 6 feet behind guardrail face at post 1 per the Standards (110 Min)
Second issuehellipMisc Asphalt should extend 10 feet upstream of post 1 per Standards
Answerhellip
Correctedhellip
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Any issues hereYES Wrong
First issuehellipTrees are within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
Second issuehellipTree violates barrier setback per FDM Table 21542
Answerhellip
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Any issues hereYES Wrong
First issuehellipTrees are within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
Second issuehellipTree violates barrier setback per FDM Table 21542
Answerhellip
Guardrail Index 536-001 Sheets 7-8
Approach TerminalsYES Wrong
First issuehellipTrees are within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
From Standard Planshellip
Guardrail Index 536-001 Sheets 7-8
Approach Terminals
CREDIT VIRGINIA DOT ndash SKT Crash Test Published October 2016
httpswwwyoutubecomwatchv=OsKlfatcjogampfeature=youtube
httpswwwyoutubecomwatchv=h7tct7Oo9-8ampfeature=youtube
YES Wrong
First issuehellipTrees are within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
Guardrail Index 536-001 Sheets 7-8
Approach Terminals
CREDIT VIRGINIA DOT ndash SKT Crash Test Published October 2016
httpswwwyoutubecomwatchv=74ImLTY-PhUampfeature=youtube
YES Wrong
First issuehellipTrees are within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
Guardrail Index 536-001 Sheets 7-8
Approach TerminalsYES Wrong
First issuehellipTrees are within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
From Standard Planshellip
Guardrail Index 536-001
YES Wrong
Second issuehellipTree violates barrier setback per FDM Table 21542
Guardrail Index 536-001
YES Wrong
Second issuehellipTree violates barrier setback per FDM Table 21542
From FDMhellip
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Any issue hereYES Wrong
First issuehellipPerpendicular guardrail is not proven crashworthybull No end treatmentsbull Violates ldquotaper raterdquo
requirements of SPI Part I (big time)
bull Requires shielding if within Clear Zone
Answerhellip
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Any issue hereYES Wrong
Second issuehellipPerpendicular guardrail within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Any issue hereYES Wrong
Third issuehellipPerpendicular guardrail violates barrier setback per FDM Table 21542
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Solution 1
REMOVE theperpendicularGuardrail
Orhellip
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Solution 2
1 Extend Guardrail to meet Length of Need per SPI Part B (Excel lsquoDesign Toolrsquo) which is Roadside Design Guide Eq 5-3
2 Meet minimum barrier setback per FDM Table 21542 (5 feet for general guardrail)
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Final Case StudyAssumptionsbull Design Speed
50 mph
bull Piers designed to withstand 600 kip impact load per FDM215454(Pier Protection Barrier notRequired)
Guardrail Index 536-001
Approach Terminals Any issue hereAnswerhellip YES
First issuehellipPiers NOT shielded
ldquoLength of Needrdquo NOT met per SPI Part B (Excel Design Tool)
Guardrail Index 536-001
Approach Terminals Any issue hereAnswerhellip YES
First issuehellipPiers NOT shielded
ldquoLength of Needrdquo NOT met per SPI Part B (Excel Design Tool)
Piers are behind the ldquogatingrdquo(break-away) portion of Approach Terminal
Guardrail Index 536-001
Approach Terminals Any issue hereYES
Second issuehellipFlared Terminal usage on hold per RDB18-02
Regardlesshellip ldquoTaper Raterdquo too steep here at Approach Terminal (about 13 shown)
Guardrail requires 115 Max Taper Rate per SPI Part I
Guardrail Index 536-001
Approach Terminals Any issue hereAnswerhellip YES
Third issuehellipldquoBarrier Setbackrdquo requirement likely not satisfied
per FDM Table 21542(5 feet or greater)hellip
Guardrail Index 536-001
Approach Terminals Any issue hereYES
Fourth issuehellipldquoTrailing Anchoragerdquo not properly extended downstream of hazard
25-foot Requirement SPI C1 amp lsquoLONrsquo Design Tool (Excel)hellip
Answerhellip
Guardrail Index 536-001
Approach Terminals Any issue hereYES
Fourth issuehellipldquoTrailing Anchoragerdquo not properly extended downstream of hazard
25-foot Requirement SPI C1 amp lsquoLONrsquo Design Tool (Excel)hellip
AnswerhellipFrom lsquoLength of Needrsquo Excel Sheethellip
Guardrail Index 536-001 Crash Cushion Index 544-001
Approach Terminals Solution 1lsquoCrash Cushionrsquobull ldquoSystem Widthrdquo ndash
lsquoWidersquo per SPI 544-001 Part C
bull ldquoLength Restrictionrdquo - per SPI 544-001 Part F
bull Contact Central Office for guidance
Note Define Crash Cushion with provided CADD cellhellipldquoSummary of Permanent Crash Cushions Tablerdquo
Guardrail Index 536-001 Crash Cushion Index 544-001
Approach Terminals Solution 1lsquoCrash Cushionrsquobull Guardrail ldquoreduced
post spacingrdquo to reduce required hazard setback per FDM Table 21542
bull Again contact Central Office for guidance for such limited space
Concrete Barrier Index 521-001 Crash Cushion 544-001
Approach Terminals Solution 2lsquoConcrete Barrierrsquo amp lsquoCrash Cushionrsquo
bull Requires project-specific design
bull Contact Central Office for guidance for such limited space
Questions
Richard Stepp PEStandard Plans Engineer
Central Office Roadway Design(850) 414-4313
richardsteppdotstateflus
Standard Plans Single-Slope Barriers
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Any issues hereAnswerhellip YES
1 Flared terminals not permitted per RDB18-02
2 Curbed conditions require parallel Approach Terminals per Standard Plans ampSPI Part C3 Approach Terminals require lsquoType Ersquo Curb
Guardrail Index 536-001 Sheets 7-8
Approach Terminals
From Standard Planshellip
Answerhellip YES
1 Flared terminals not permitted per RDB18-02
2 Curbed conditions require parallel Approach Terminals per Standard Plans ampSPI Part C3 Approach Terminals require lsquoType Ersquo Curb
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Solution
1 Flared terminals not permitted per RDB18-02
2 Curbed conditions require parallel Approach Terminals per Standard Plans
3 Approach Terminals require lsquoType Ersquo Curb
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Any issues hereYES Wrong
First issuehellipFront slope break should be 6 feet behind guardrail face at post 1 per the Standards (110 Max)
Second issuehellipMisc Asphalt should extend 10 feet upstream of post 1 per Standards
Answerhellip
Guardrail Index 536-001 Sheets 7-8
Approach TerminalsYES Wrong
First issuehellipFront slope break should be 6 feet behind guardrail face at post 1 per the Standards (110 Min)
Second issuehellipMisc Asphalt should extend 10 feet upstream of post 1 per Standards
Answerhellip
From Standard Planshellip
Guardrail Index 536-001 Sheets 7-8
Approach TerminalsYES Wrong
First issuehellipFront slope break should be 6 feet behind guardrail face at post 1 per the Standards (110 Min)
Second issuehellipMisc Asphalt should extend 10 feet upstream of post 1 per Standards
Answerhellip
Example of Poor Slope Break Location (and steep slope not shielded)
Photo Credit Bill Fitzgerald PE
Guardrail Index 536-001 Sheets 7-8
Approach TerminalsYES Wrong
First issuehellipFront slope break should be 6 feet behind guardrail face at post 1 per the Standards (110 Min)
Second issuehellipMisc Asphalt should extend 10 feet upstream of post 1 per Standards
Answerhellip
Example of Poor Grading (The reason for Misc Asphalt requirement)
Photo Credit Bill Fitzgerald PE
Guardrail Index 536-001 Sheets 7-8
Approach Terminals SolutionYES Wrong
First issuehellipFront slope break should be 6 feet behind guardrail face at post 1 per the Standards (110 Min)
Second issuehellipMisc Asphalt should extend 10 feet upstream of post 1 per Standards
Answerhellip
Correctedhellip
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Any issues hereYES Wrong
First issuehellipTrees are within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
Second issuehellipTree violates barrier setback per FDM Table 21542
Answerhellip
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Any issues hereYES Wrong
First issuehellipTrees are within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
Second issuehellipTree violates barrier setback per FDM Table 21542
Answerhellip
Guardrail Index 536-001 Sheets 7-8
Approach TerminalsYES Wrong
First issuehellipTrees are within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
From Standard Planshellip
Guardrail Index 536-001 Sheets 7-8
Approach Terminals
CREDIT VIRGINIA DOT ndash SKT Crash Test Published October 2016
httpswwwyoutubecomwatchv=OsKlfatcjogampfeature=youtube
httpswwwyoutubecomwatchv=h7tct7Oo9-8ampfeature=youtube
YES Wrong
First issuehellipTrees are within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
Guardrail Index 536-001 Sheets 7-8
Approach Terminals
CREDIT VIRGINIA DOT ndash SKT Crash Test Published October 2016
httpswwwyoutubecomwatchv=74ImLTY-PhUampfeature=youtube
YES Wrong
First issuehellipTrees are within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
Guardrail Index 536-001 Sheets 7-8
Approach TerminalsYES Wrong
First issuehellipTrees are within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
From Standard Planshellip
Guardrail Index 536-001
YES Wrong
Second issuehellipTree violates barrier setback per FDM Table 21542
Guardrail Index 536-001
YES Wrong
Second issuehellipTree violates barrier setback per FDM Table 21542
From FDMhellip
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Any issue hereYES Wrong
First issuehellipPerpendicular guardrail is not proven crashworthybull No end treatmentsbull Violates ldquotaper raterdquo
requirements of SPI Part I (big time)
bull Requires shielding if within Clear Zone
Answerhellip
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Any issue hereYES Wrong
Second issuehellipPerpendicular guardrail within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Any issue hereYES Wrong
Third issuehellipPerpendicular guardrail violates barrier setback per FDM Table 21542
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Solution 1
REMOVE theperpendicularGuardrail
Orhellip
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Solution 2
1 Extend Guardrail to meet Length of Need per SPI Part B (Excel lsquoDesign Toolrsquo) which is Roadside Design Guide Eq 5-3
2 Meet minimum barrier setback per FDM Table 21542 (5 feet for general guardrail)
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Final Case StudyAssumptionsbull Design Speed
50 mph
bull Piers designed to withstand 600 kip impact load per FDM215454(Pier Protection Barrier notRequired)
Guardrail Index 536-001
Approach Terminals Any issue hereAnswerhellip YES
First issuehellipPiers NOT shielded
ldquoLength of Needrdquo NOT met per SPI Part B (Excel Design Tool)
Guardrail Index 536-001
Approach Terminals Any issue hereAnswerhellip YES
First issuehellipPiers NOT shielded
ldquoLength of Needrdquo NOT met per SPI Part B (Excel Design Tool)
Piers are behind the ldquogatingrdquo(break-away) portion of Approach Terminal
Guardrail Index 536-001
Approach Terminals Any issue hereYES
Second issuehellipFlared Terminal usage on hold per RDB18-02
Regardlesshellip ldquoTaper Raterdquo too steep here at Approach Terminal (about 13 shown)
Guardrail requires 115 Max Taper Rate per SPI Part I
Guardrail Index 536-001
Approach Terminals Any issue hereAnswerhellip YES
Third issuehellipldquoBarrier Setbackrdquo requirement likely not satisfied
per FDM Table 21542(5 feet or greater)hellip
Guardrail Index 536-001
Approach Terminals Any issue hereYES
Fourth issuehellipldquoTrailing Anchoragerdquo not properly extended downstream of hazard
25-foot Requirement SPI C1 amp lsquoLONrsquo Design Tool (Excel)hellip
Answerhellip
Guardrail Index 536-001
Approach Terminals Any issue hereYES
Fourth issuehellipldquoTrailing Anchoragerdquo not properly extended downstream of hazard
25-foot Requirement SPI C1 amp lsquoLONrsquo Design Tool (Excel)hellip
AnswerhellipFrom lsquoLength of Needrsquo Excel Sheethellip
Guardrail Index 536-001 Crash Cushion Index 544-001
Approach Terminals Solution 1lsquoCrash Cushionrsquobull ldquoSystem Widthrdquo ndash
lsquoWidersquo per SPI 544-001 Part C
bull ldquoLength Restrictionrdquo - per SPI 544-001 Part F
bull Contact Central Office for guidance
Note Define Crash Cushion with provided CADD cellhellipldquoSummary of Permanent Crash Cushions Tablerdquo
Guardrail Index 536-001 Crash Cushion Index 544-001
Approach Terminals Solution 1lsquoCrash Cushionrsquobull Guardrail ldquoreduced
post spacingrdquo to reduce required hazard setback per FDM Table 21542
bull Again contact Central Office for guidance for such limited space
Concrete Barrier Index 521-001 Crash Cushion 544-001
Approach Terminals Solution 2lsquoConcrete Barrierrsquo amp lsquoCrash Cushionrsquo
bull Requires project-specific design
bull Contact Central Office for guidance for such limited space
Questions
Richard Stepp PEStandard Plans Engineer
Central Office Roadway Design(850) 414-4313
richardsteppdotstateflus
Standard Plans Single-Slope Barriers
Guardrail Index 536-001 Sheets 7-8
Approach Terminals
From Standard Planshellip
Answerhellip YES
1 Flared terminals not permitted per RDB18-02
2 Curbed conditions require parallel Approach Terminals per Standard Plans ampSPI Part C3 Approach Terminals require lsquoType Ersquo Curb
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Solution
1 Flared terminals not permitted per RDB18-02
2 Curbed conditions require parallel Approach Terminals per Standard Plans
3 Approach Terminals require lsquoType Ersquo Curb
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Any issues hereYES Wrong
First issuehellipFront slope break should be 6 feet behind guardrail face at post 1 per the Standards (110 Max)
Second issuehellipMisc Asphalt should extend 10 feet upstream of post 1 per Standards
Answerhellip
Guardrail Index 536-001 Sheets 7-8
Approach TerminalsYES Wrong
First issuehellipFront slope break should be 6 feet behind guardrail face at post 1 per the Standards (110 Min)
Second issuehellipMisc Asphalt should extend 10 feet upstream of post 1 per Standards
Answerhellip
From Standard Planshellip
Guardrail Index 536-001 Sheets 7-8
Approach TerminalsYES Wrong
First issuehellipFront slope break should be 6 feet behind guardrail face at post 1 per the Standards (110 Min)
Second issuehellipMisc Asphalt should extend 10 feet upstream of post 1 per Standards
Answerhellip
Example of Poor Slope Break Location (and steep slope not shielded)
Photo Credit Bill Fitzgerald PE
Guardrail Index 536-001 Sheets 7-8
Approach TerminalsYES Wrong
First issuehellipFront slope break should be 6 feet behind guardrail face at post 1 per the Standards (110 Min)
Second issuehellipMisc Asphalt should extend 10 feet upstream of post 1 per Standards
Answerhellip
Example of Poor Grading (The reason for Misc Asphalt requirement)
Photo Credit Bill Fitzgerald PE
Guardrail Index 536-001 Sheets 7-8
Approach Terminals SolutionYES Wrong
First issuehellipFront slope break should be 6 feet behind guardrail face at post 1 per the Standards (110 Min)
Second issuehellipMisc Asphalt should extend 10 feet upstream of post 1 per Standards
Answerhellip
Correctedhellip
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Any issues hereYES Wrong
First issuehellipTrees are within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
Second issuehellipTree violates barrier setback per FDM Table 21542
Answerhellip
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Any issues hereYES Wrong
First issuehellipTrees are within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
Second issuehellipTree violates barrier setback per FDM Table 21542
Answerhellip
Guardrail Index 536-001 Sheets 7-8
Approach TerminalsYES Wrong
First issuehellipTrees are within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
From Standard Planshellip
Guardrail Index 536-001 Sheets 7-8
Approach Terminals
CREDIT VIRGINIA DOT ndash SKT Crash Test Published October 2016
httpswwwyoutubecomwatchv=OsKlfatcjogampfeature=youtube
httpswwwyoutubecomwatchv=h7tct7Oo9-8ampfeature=youtube
YES Wrong
First issuehellipTrees are within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
Guardrail Index 536-001 Sheets 7-8
Approach Terminals
CREDIT VIRGINIA DOT ndash SKT Crash Test Published October 2016
httpswwwyoutubecomwatchv=74ImLTY-PhUampfeature=youtube
YES Wrong
First issuehellipTrees are within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
Guardrail Index 536-001 Sheets 7-8
Approach TerminalsYES Wrong
First issuehellipTrees are within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
From Standard Planshellip
Guardrail Index 536-001
YES Wrong
Second issuehellipTree violates barrier setback per FDM Table 21542
Guardrail Index 536-001
YES Wrong
Second issuehellipTree violates barrier setback per FDM Table 21542
From FDMhellip
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Any issue hereYES Wrong
First issuehellipPerpendicular guardrail is not proven crashworthybull No end treatmentsbull Violates ldquotaper raterdquo
requirements of SPI Part I (big time)
bull Requires shielding if within Clear Zone
Answerhellip
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Any issue hereYES Wrong
Second issuehellipPerpendicular guardrail within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Any issue hereYES Wrong
Third issuehellipPerpendicular guardrail violates barrier setback per FDM Table 21542
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Solution 1
REMOVE theperpendicularGuardrail
Orhellip
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Solution 2
1 Extend Guardrail to meet Length of Need per SPI Part B (Excel lsquoDesign Toolrsquo) which is Roadside Design Guide Eq 5-3
2 Meet minimum barrier setback per FDM Table 21542 (5 feet for general guardrail)
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Final Case StudyAssumptionsbull Design Speed
50 mph
bull Piers designed to withstand 600 kip impact load per FDM215454(Pier Protection Barrier notRequired)
Guardrail Index 536-001
Approach Terminals Any issue hereAnswerhellip YES
First issuehellipPiers NOT shielded
ldquoLength of Needrdquo NOT met per SPI Part B (Excel Design Tool)
Guardrail Index 536-001
Approach Terminals Any issue hereAnswerhellip YES
First issuehellipPiers NOT shielded
ldquoLength of Needrdquo NOT met per SPI Part B (Excel Design Tool)
Piers are behind the ldquogatingrdquo(break-away) portion of Approach Terminal
Guardrail Index 536-001
Approach Terminals Any issue hereYES
Second issuehellipFlared Terminal usage on hold per RDB18-02
Regardlesshellip ldquoTaper Raterdquo too steep here at Approach Terminal (about 13 shown)
Guardrail requires 115 Max Taper Rate per SPI Part I
Guardrail Index 536-001
Approach Terminals Any issue hereAnswerhellip YES
Third issuehellipldquoBarrier Setbackrdquo requirement likely not satisfied
per FDM Table 21542(5 feet or greater)hellip
Guardrail Index 536-001
Approach Terminals Any issue hereYES
Fourth issuehellipldquoTrailing Anchoragerdquo not properly extended downstream of hazard
25-foot Requirement SPI C1 amp lsquoLONrsquo Design Tool (Excel)hellip
Answerhellip
Guardrail Index 536-001
Approach Terminals Any issue hereYES
Fourth issuehellipldquoTrailing Anchoragerdquo not properly extended downstream of hazard
25-foot Requirement SPI C1 amp lsquoLONrsquo Design Tool (Excel)hellip
AnswerhellipFrom lsquoLength of Needrsquo Excel Sheethellip
Guardrail Index 536-001 Crash Cushion Index 544-001
Approach Terminals Solution 1lsquoCrash Cushionrsquobull ldquoSystem Widthrdquo ndash
lsquoWidersquo per SPI 544-001 Part C
bull ldquoLength Restrictionrdquo - per SPI 544-001 Part F
bull Contact Central Office for guidance
Note Define Crash Cushion with provided CADD cellhellipldquoSummary of Permanent Crash Cushions Tablerdquo
Guardrail Index 536-001 Crash Cushion Index 544-001
Approach Terminals Solution 1lsquoCrash Cushionrsquobull Guardrail ldquoreduced
post spacingrdquo to reduce required hazard setback per FDM Table 21542
bull Again contact Central Office for guidance for such limited space
Concrete Barrier Index 521-001 Crash Cushion 544-001
Approach Terminals Solution 2lsquoConcrete Barrierrsquo amp lsquoCrash Cushionrsquo
bull Requires project-specific design
bull Contact Central Office for guidance for such limited space
Questions
Richard Stepp PEStandard Plans Engineer
Central Office Roadway Design(850) 414-4313
richardsteppdotstateflus
Standard Plans Single-Slope Barriers
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Solution
1 Flared terminals not permitted per RDB18-02
2 Curbed conditions require parallel Approach Terminals per Standard Plans
3 Approach Terminals require lsquoType Ersquo Curb
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Any issues hereYES Wrong
First issuehellipFront slope break should be 6 feet behind guardrail face at post 1 per the Standards (110 Max)
Second issuehellipMisc Asphalt should extend 10 feet upstream of post 1 per Standards
Answerhellip
Guardrail Index 536-001 Sheets 7-8
Approach TerminalsYES Wrong
First issuehellipFront slope break should be 6 feet behind guardrail face at post 1 per the Standards (110 Min)
Second issuehellipMisc Asphalt should extend 10 feet upstream of post 1 per Standards
Answerhellip
From Standard Planshellip
Guardrail Index 536-001 Sheets 7-8
Approach TerminalsYES Wrong
First issuehellipFront slope break should be 6 feet behind guardrail face at post 1 per the Standards (110 Min)
Second issuehellipMisc Asphalt should extend 10 feet upstream of post 1 per Standards
Answerhellip
Example of Poor Slope Break Location (and steep slope not shielded)
Photo Credit Bill Fitzgerald PE
Guardrail Index 536-001 Sheets 7-8
Approach TerminalsYES Wrong
First issuehellipFront slope break should be 6 feet behind guardrail face at post 1 per the Standards (110 Min)
Second issuehellipMisc Asphalt should extend 10 feet upstream of post 1 per Standards
Answerhellip
Example of Poor Grading (The reason for Misc Asphalt requirement)
Photo Credit Bill Fitzgerald PE
Guardrail Index 536-001 Sheets 7-8
Approach Terminals SolutionYES Wrong
First issuehellipFront slope break should be 6 feet behind guardrail face at post 1 per the Standards (110 Min)
Second issuehellipMisc Asphalt should extend 10 feet upstream of post 1 per Standards
Answerhellip
Correctedhellip
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Any issues hereYES Wrong
First issuehellipTrees are within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
Second issuehellipTree violates barrier setback per FDM Table 21542
Answerhellip
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Any issues hereYES Wrong
First issuehellipTrees are within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
Second issuehellipTree violates barrier setback per FDM Table 21542
Answerhellip
Guardrail Index 536-001 Sheets 7-8
Approach TerminalsYES Wrong
First issuehellipTrees are within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
From Standard Planshellip
Guardrail Index 536-001 Sheets 7-8
Approach Terminals
CREDIT VIRGINIA DOT ndash SKT Crash Test Published October 2016
httpswwwyoutubecomwatchv=OsKlfatcjogampfeature=youtube
httpswwwyoutubecomwatchv=h7tct7Oo9-8ampfeature=youtube
YES Wrong
First issuehellipTrees are within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
Guardrail Index 536-001 Sheets 7-8
Approach Terminals
CREDIT VIRGINIA DOT ndash SKT Crash Test Published October 2016
httpswwwyoutubecomwatchv=74ImLTY-PhUampfeature=youtube
YES Wrong
First issuehellipTrees are within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
Guardrail Index 536-001 Sheets 7-8
Approach TerminalsYES Wrong
First issuehellipTrees are within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
From Standard Planshellip
Guardrail Index 536-001
YES Wrong
Second issuehellipTree violates barrier setback per FDM Table 21542
Guardrail Index 536-001
YES Wrong
Second issuehellipTree violates barrier setback per FDM Table 21542
From FDMhellip
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Any issue hereYES Wrong
First issuehellipPerpendicular guardrail is not proven crashworthybull No end treatmentsbull Violates ldquotaper raterdquo
requirements of SPI Part I (big time)
bull Requires shielding if within Clear Zone
Answerhellip
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Any issue hereYES Wrong
Second issuehellipPerpendicular guardrail within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Any issue hereYES Wrong
Third issuehellipPerpendicular guardrail violates barrier setback per FDM Table 21542
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Solution 1
REMOVE theperpendicularGuardrail
Orhellip
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Solution 2
1 Extend Guardrail to meet Length of Need per SPI Part B (Excel lsquoDesign Toolrsquo) which is Roadside Design Guide Eq 5-3
2 Meet minimum barrier setback per FDM Table 21542 (5 feet for general guardrail)
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Final Case StudyAssumptionsbull Design Speed
50 mph
bull Piers designed to withstand 600 kip impact load per FDM215454(Pier Protection Barrier notRequired)
Guardrail Index 536-001
Approach Terminals Any issue hereAnswerhellip YES
First issuehellipPiers NOT shielded
ldquoLength of Needrdquo NOT met per SPI Part B (Excel Design Tool)
Guardrail Index 536-001
Approach Terminals Any issue hereAnswerhellip YES
First issuehellipPiers NOT shielded
ldquoLength of Needrdquo NOT met per SPI Part B (Excel Design Tool)
Piers are behind the ldquogatingrdquo(break-away) portion of Approach Terminal
Guardrail Index 536-001
Approach Terminals Any issue hereYES
Second issuehellipFlared Terminal usage on hold per RDB18-02
Regardlesshellip ldquoTaper Raterdquo too steep here at Approach Terminal (about 13 shown)
Guardrail requires 115 Max Taper Rate per SPI Part I
Guardrail Index 536-001
Approach Terminals Any issue hereAnswerhellip YES
Third issuehellipldquoBarrier Setbackrdquo requirement likely not satisfied
per FDM Table 21542(5 feet or greater)hellip
Guardrail Index 536-001
Approach Terminals Any issue hereYES
Fourth issuehellipldquoTrailing Anchoragerdquo not properly extended downstream of hazard
25-foot Requirement SPI C1 amp lsquoLONrsquo Design Tool (Excel)hellip
Answerhellip
Guardrail Index 536-001
Approach Terminals Any issue hereYES
Fourth issuehellipldquoTrailing Anchoragerdquo not properly extended downstream of hazard
25-foot Requirement SPI C1 amp lsquoLONrsquo Design Tool (Excel)hellip
AnswerhellipFrom lsquoLength of Needrsquo Excel Sheethellip
Guardrail Index 536-001 Crash Cushion Index 544-001
Approach Terminals Solution 1lsquoCrash Cushionrsquobull ldquoSystem Widthrdquo ndash
lsquoWidersquo per SPI 544-001 Part C
bull ldquoLength Restrictionrdquo - per SPI 544-001 Part F
bull Contact Central Office for guidance
Note Define Crash Cushion with provided CADD cellhellipldquoSummary of Permanent Crash Cushions Tablerdquo
Guardrail Index 536-001 Crash Cushion Index 544-001
Approach Terminals Solution 1lsquoCrash Cushionrsquobull Guardrail ldquoreduced
post spacingrdquo to reduce required hazard setback per FDM Table 21542
bull Again contact Central Office for guidance for such limited space
Concrete Barrier Index 521-001 Crash Cushion 544-001
Approach Terminals Solution 2lsquoConcrete Barrierrsquo amp lsquoCrash Cushionrsquo
bull Requires project-specific design
bull Contact Central Office for guidance for such limited space
Questions
Richard Stepp PEStandard Plans Engineer
Central Office Roadway Design(850) 414-4313
richardsteppdotstateflus
Standard Plans Single-Slope Barriers
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Any issues hereYES Wrong
First issuehellipFront slope break should be 6 feet behind guardrail face at post 1 per the Standards (110 Max)
Second issuehellipMisc Asphalt should extend 10 feet upstream of post 1 per Standards
Answerhellip
Guardrail Index 536-001 Sheets 7-8
Approach TerminalsYES Wrong
First issuehellipFront slope break should be 6 feet behind guardrail face at post 1 per the Standards (110 Min)
Second issuehellipMisc Asphalt should extend 10 feet upstream of post 1 per Standards
Answerhellip
From Standard Planshellip
Guardrail Index 536-001 Sheets 7-8
Approach TerminalsYES Wrong
First issuehellipFront slope break should be 6 feet behind guardrail face at post 1 per the Standards (110 Min)
Second issuehellipMisc Asphalt should extend 10 feet upstream of post 1 per Standards
Answerhellip
Example of Poor Slope Break Location (and steep slope not shielded)
Photo Credit Bill Fitzgerald PE
Guardrail Index 536-001 Sheets 7-8
Approach TerminalsYES Wrong
First issuehellipFront slope break should be 6 feet behind guardrail face at post 1 per the Standards (110 Min)
Second issuehellipMisc Asphalt should extend 10 feet upstream of post 1 per Standards
Answerhellip
Example of Poor Grading (The reason for Misc Asphalt requirement)
Photo Credit Bill Fitzgerald PE
Guardrail Index 536-001 Sheets 7-8
Approach Terminals SolutionYES Wrong
First issuehellipFront slope break should be 6 feet behind guardrail face at post 1 per the Standards (110 Min)
Second issuehellipMisc Asphalt should extend 10 feet upstream of post 1 per Standards
Answerhellip
Correctedhellip
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Any issues hereYES Wrong
First issuehellipTrees are within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
Second issuehellipTree violates barrier setback per FDM Table 21542
Answerhellip
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Any issues hereYES Wrong
First issuehellipTrees are within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
Second issuehellipTree violates barrier setback per FDM Table 21542
Answerhellip
Guardrail Index 536-001 Sheets 7-8
Approach TerminalsYES Wrong
First issuehellipTrees are within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
From Standard Planshellip
Guardrail Index 536-001 Sheets 7-8
Approach Terminals
CREDIT VIRGINIA DOT ndash SKT Crash Test Published October 2016
httpswwwyoutubecomwatchv=OsKlfatcjogampfeature=youtube
httpswwwyoutubecomwatchv=h7tct7Oo9-8ampfeature=youtube
YES Wrong
First issuehellipTrees are within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
Guardrail Index 536-001 Sheets 7-8
Approach Terminals
CREDIT VIRGINIA DOT ndash SKT Crash Test Published October 2016
httpswwwyoutubecomwatchv=74ImLTY-PhUampfeature=youtube
YES Wrong
First issuehellipTrees are within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
Guardrail Index 536-001 Sheets 7-8
Approach TerminalsYES Wrong
First issuehellipTrees are within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
From Standard Planshellip
Guardrail Index 536-001
YES Wrong
Second issuehellipTree violates barrier setback per FDM Table 21542
Guardrail Index 536-001
YES Wrong
Second issuehellipTree violates barrier setback per FDM Table 21542
From FDMhellip
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Any issue hereYES Wrong
First issuehellipPerpendicular guardrail is not proven crashworthybull No end treatmentsbull Violates ldquotaper raterdquo
requirements of SPI Part I (big time)
bull Requires shielding if within Clear Zone
Answerhellip
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Any issue hereYES Wrong
Second issuehellipPerpendicular guardrail within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Any issue hereYES Wrong
Third issuehellipPerpendicular guardrail violates barrier setback per FDM Table 21542
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Solution 1
REMOVE theperpendicularGuardrail
Orhellip
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Solution 2
1 Extend Guardrail to meet Length of Need per SPI Part B (Excel lsquoDesign Toolrsquo) which is Roadside Design Guide Eq 5-3
2 Meet minimum barrier setback per FDM Table 21542 (5 feet for general guardrail)
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Final Case StudyAssumptionsbull Design Speed
50 mph
bull Piers designed to withstand 600 kip impact load per FDM215454(Pier Protection Barrier notRequired)
Guardrail Index 536-001
Approach Terminals Any issue hereAnswerhellip YES
First issuehellipPiers NOT shielded
ldquoLength of Needrdquo NOT met per SPI Part B (Excel Design Tool)
Guardrail Index 536-001
Approach Terminals Any issue hereAnswerhellip YES
First issuehellipPiers NOT shielded
ldquoLength of Needrdquo NOT met per SPI Part B (Excel Design Tool)
Piers are behind the ldquogatingrdquo(break-away) portion of Approach Terminal
Guardrail Index 536-001
Approach Terminals Any issue hereYES
Second issuehellipFlared Terminal usage on hold per RDB18-02
Regardlesshellip ldquoTaper Raterdquo too steep here at Approach Terminal (about 13 shown)
Guardrail requires 115 Max Taper Rate per SPI Part I
Guardrail Index 536-001
Approach Terminals Any issue hereAnswerhellip YES
Third issuehellipldquoBarrier Setbackrdquo requirement likely not satisfied
per FDM Table 21542(5 feet or greater)hellip
Guardrail Index 536-001
Approach Terminals Any issue hereYES
Fourth issuehellipldquoTrailing Anchoragerdquo not properly extended downstream of hazard
25-foot Requirement SPI C1 amp lsquoLONrsquo Design Tool (Excel)hellip
Answerhellip
Guardrail Index 536-001
Approach Terminals Any issue hereYES
Fourth issuehellipldquoTrailing Anchoragerdquo not properly extended downstream of hazard
25-foot Requirement SPI C1 amp lsquoLONrsquo Design Tool (Excel)hellip
AnswerhellipFrom lsquoLength of Needrsquo Excel Sheethellip
Guardrail Index 536-001 Crash Cushion Index 544-001
Approach Terminals Solution 1lsquoCrash Cushionrsquobull ldquoSystem Widthrdquo ndash
lsquoWidersquo per SPI 544-001 Part C
bull ldquoLength Restrictionrdquo - per SPI 544-001 Part F
bull Contact Central Office for guidance
Note Define Crash Cushion with provided CADD cellhellipldquoSummary of Permanent Crash Cushions Tablerdquo
Guardrail Index 536-001 Crash Cushion Index 544-001
Approach Terminals Solution 1lsquoCrash Cushionrsquobull Guardrail ldquoreduced
post spacingrdquo to reduce required hazard setback per FDM Table 21542
bull Again contact Central Office for guidance for such limited space
Concrete Barrier Index 521-001 Crash Cushion 544-001
Approach Terminals Solution 2lsquoConcrete Barrierrsquo amp lsquoCrash Cushionrsquo
bull Requires project-specific design
bull Contact Central Office for guidance for such limited space
Questions
Richard Stepp PEStandard Plans Engineer
Central Office Roadway Design(850) 414-4313
richardsteppdotstateflus
Standard Plans Single-Slope Barriers
Guardrail Index 536-001 Sheets 7-8
Approach TerminalsYES Wrong
First issuehellipFront slope break should be 6 feet behind guardrail face at post 1 per the Standards (110 Min)
Second issuehellipMisc Asphalt should extend 10 feet upstream of post 1 per Standards
Answerhellip
From Standard Planshellip
Guardrail Index 536-001 Sheets 7-8
Approach TerminalsYES Wrong
First issuehellipFront slope break should be 6 feet behind guardrail face at post 1 per the Standards (110 Min)
Second issuehellipMisc Asphalt should extend 10 feet upstream of post 1 per Standards
Answerhellip
Example of Poor Slope Break Location (and steep slope not shielded)
Photo Credit Bill Fitzgerald PE
Guardrail Index 536-001 Sheets 7-8
Approach TerminalsYES Wrong
First issuehellipFront slope break should be 6 feet behind guardrail face at post 1 per the Standards (110 Min)
Second issuehellipMisc Asphalt should extend 10 feet upstream of post 1 per Standards
Answerhellip
Example of Poor Grading (The reason for Misc Asphalt requirement)
Photo Credit Bill Fitzgerald PE
Guardrail Index 536-001 Sheets 7-8
Approach Terminals SolutionYES Wrong
First issuehellipFront slope break should be 6 feet behind guardrail face at post 1 per the Standards (110 Min)
Second issuehellipMisc Asphalt should extend 10 feet upstream of post 1 per Standards
Answerhellip
Correctedhellip
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Any issues hereYES Wrong
First issuehellipTrees are within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
Second issuehellipTree violates barrier setback per FDM Table 21542
Answerhellip
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Any issues hereYES Wrong
First issuehellipTrees are within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
Second issuehellipTree violates barrier setback per FDM Table 21542
Answerhellip
Guardrail Index 536-001 Sheets 7-8
Approach TerminalsYES Wrong
First issuehellipTrees are within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
From Standard Planshellip
Guardrail Index 536-001 Sheets 7-8
Approach Terminals
CREDIT VIRGINIA DOT ndash SKT Crash Test Published October 2016
httpswwwyoutubecomwatchv=OsKlfatcjogampfeature=youtube
httpswwwyoutubecomwatchv=h7tct7Oo9-8ampfeature=youtube
YES Wrong
First issuehellipTrees are within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
Guardrail Index 536-001 Sheets 7-8
Approach Terminals
CREDIT VIRGINIA DOT ndash SKT Crash Test Published October 2016
httpswwwyoutubecomwatchv=74ImLTY-PhUampfeature=youtube
YES Wrong
First issuehellipTrees are within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
Guardrail Index 536-001 Sheets 7-8
Approach TerminalsYES Wrong
First issuehellipTrees are within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
From Standard Planshellip
Guardrail Index 536-001
YES Wrong
Second issuehellipTree violates barrier setback per FDM Table 21542
Guardrail Index 536-001
YES Wrong
Second issuehellipTree violates barrier setback per FDM Table 21542
From FDMhellip
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Any issue hereYES Wrong
First issuehellipPerpendicular guardrail is not proven crashworthybull No end treatmentsbull Violates ldquotaper raterdquo
requirements of SPI Part I (big time)
bull Requires shielding if within Clear Zone
Answerhellip
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Any issue hereYES Wrong
Second issuehellipPerpendicular guardrail within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Any issue hereYES Wrong
Third issuehellipPerpendicular guardrail violates barrier setback per FDM Table 21542
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Solution 1
REMOVE theperpendicularGuardrail
Orhellip
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Solution 2
1 Extend Guardrail to meet Length of Need per SPI Part B (Excel lsquoDesign Toolrsquo) which is Roadside Design Guide Eq 5-3
2 Meet minimum barrier setback per FDM Table 21542 (5 feet for general guardrail)
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Final Case StudyAssumptionsbull Design Speed
50 mph
bull Piers designed to withstand 600 kip impact load per FDM215454(Pier Protection Barrier notRequired)
Guardrail Index 536-001
Approach Terminals Any issue hereAnswerhellip YES
First issuehellipPiers NOT shielded
ldquoLength of Needrdquo NOT met per SPI Part B (Excel Design Tool)
Guardrail Index 536-001
Approach Terminals Any issue hereAnswerhellip YES
First issuehellipPiers NOT shielded
ldquoLength of Needrdquo NOT met per SPI Part B (Excel Design Tool)
Piers are behind the ldquogatingrdquo(break-away) portion of Approach Terminal
Guardrail Index 536-001
Approach Terminals Any issue hereYES
Second issuehellipFlared Terminal usage on hold per RDB18-02
Regardlesshellip ldquoTaper Raterdquo too steep here at Approach Terminal (about 13 shown)
Guardrail requires 115 Max Taper Rate per SPI Part I
Guardrail Index 536-001
Approach Terminals Any issue hereAnswerhellip YES
Third issuehellipldquoBarrier Setbackrdquo requirement likely not satisfied
per FDM Table 21542(5 feet or greater)hellip
Guardrail Index 536-001
Approach Terminals Any issue hereYES
Fourth issuehellipldquoTrailing Anchoragerdquo not properly extended downstream of hazard
25-foot Requirement SPI C1 amp lsquoLONrsquo Design Tool (Excel)hellip
Answerhellip
Guardrail Index 536-001
Approach Terminals Any issue hereYES
Fourth issuehellipldquoTrailing Anchoragerdquo not properly extended downstream of hazard
25-foot Requirement SPI C1 amp lsquoLONrsquo Design Tool (Excel)hellip
AnswerhellipFrom lsquoLength of Needrsquo Excel Sheethellip
Guardrail Index 536-001 Crash Cushion Index 544-001
Approach Terminals Solution 1lsquoCrash Cushionrsquobull ldquoSystem Widthrdquo ndash
lsquoWidersquo per SPI 544-001 Part C
bull ldquoLength Restrictionrdquo - per SPI 544-001 Part F
bull Contact Central Office for guidance
Note Define Crash Cushion with provided CADD cellhellipldquoSummary of Permanent Crash Cushions Tablerdquo
Guardrail Index 536-001 Crash Cushion Index 544-001
Approach Terminals Solution 1lsquoCrash Cushionrsquobull Guardrail ldquoreduced
post spacingrdquo to reduce required hazard setback per FDM Table 21542
bull Again contact Central Office for guidance for such limited space
Concrete Barrier Index 521-001 Crash Cushion 544-001
Approach Terminals Solution 2lsquoConcrete Barrierrsquo amp lsquoCrash Cushionrsquo
bull Requires project-specific design
bull Contact Central Office for guidance for such limited space
Questions
Richard Stepp PEStandard Plans Engineer
Central Office Roadway Design(850) 414-4313
richardsteppdotstateflus
Standard Plans Single-Slope Barriers
Guardrail Index 536-001 Sheets 7-8
Approach TerminalsYES Wrong
First issuehellipFront slope break should be 6 feet behind guardrail face at post 1 per the Standards (110 Min)
Second issuehellipMisc Asphalt should extend 10 feet upstream of post 1 per Standards
Answerhellip
Example of Poor Slope Break Location (and steep slope not shielded)
Photo Credit Bill Fitzgerald PE
Guardrail Index 536-001 Sheets 7-8
Approach TerminalsYES Wrong
First issuehellipFront slope break should be 6 feet behind guardrail face at post 1 per the Standards (110 Min)
Second issuehellipMisc Asphalt should extend 10 feet upstream of post 1 per Standards
Answerhellip
Example of Poor Grading (The reason for Misc Asphalt requirement)
Photo Credit Bill Fitzgerald PE
Guardrail Index 536-001 Sheets 7-8
Approach Terminals SolutionYES Wrong
First issuehellipFront slope break should be 6 feet behind guardrail face at post 1 per the Standards (110 Min)
Second issuehellipMisc Asphalt should extend 10 feet upstream of post 1 per Standards
Answerhellip
Correctedhellip
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Any issues hereYES Wrong
First issuehellipTrees are within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
Second issuehellipTree violates barrier setback per FDM Table 21542
Answerhellip
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Any issues hereYES Wrong
First issuehellipTrees are within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
Second issuehellipTree violates barrier setback per FDM Table 21542
Answerhellip
Guardrail Index 536-001 Sheets 7-8
Approach TerminalsYES Wrong
First issuehellipTrees are within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
From Standard Planshellip
Guardrail Index 536-001 Sheets 7-8
Approach Terminals
CREDIT VIRGINIA DOT ndash SKT Crash Test Published October 2016
httpswwwyoutubecomwatchv=OsKlfatcjogampfeature=youtube
httpswwwyoutubecomwatchv=h7tct7Oo9-8ampfeature=youtube
YES Wrong
First issuehellipTrees are within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
Guardrail Index 536-001 Sheets 7-8
Approach Terminals
CREDIT VIRGINIA DOT ndash SKT Crash Test Published October 2016
httpswwwyoutubecomwatchv=74ImLTY-PhUampfeature=youtube
YES Wrong
First issuehellipTrees are within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
Guardrail Index 536-001 Sheets 7-8
Approach TerminalsYES Wrong
First issuehellipTrees are within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
From Standard Planshellip
Guardrail Index 536-001
YES Wrong
Second issuehellipTree violates barrier setback per FDM Table 21542
Guardrail Index 536-001
YES Wrong
Second issuehellipTree violates barrier setback per FDM Table 21542
From FDMhellip
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Any issue hereYES Wrong
First issuehellipPerpendicular guardrail is not proven crashworthybull No end treatmentsbull Violates ldquotaper raterdquo
requirements of SPI Part I (big time)
bull Requires shielding if within Clear Zone
Answerhellip
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Any issue hereYES Wrong
Second issuehellipPerpendicular guardrail within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Any issue hereYES Wrong
Third issuehellipPerpendicular guardrail violates barrier setback per FDM Table 21542
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Solution 1
REMOVE theperpendicularGuardrail
Orhellip
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Solution 2
1 Extend Guardrail to meet Length of Need per SPI Part B (Excel lsquoDesign Toolrsquo) which is Roadside Design Guide Eq 5-3
2 Meet minimum barrier setback per FDM Table 21542 (5 feet for general guardrail)
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Final Case StudyAssumptionsbull Design Speed
50 mph
bull Piers designed to withstand 600 kip impact load per FDM215454(Pier Protection Barrier notRequired)
Guardrail Index 536-001
Approach Terminals Any issue hereAnswerhellip YES
First issuehellipPiers NOT shielded
ldquoLength of Needrdquo NOT met per SPI Part B (Excel Design Tool)
Guardrail Index 536-001
Approach Terminals Any issue hereAnswerhellip YES
First issuehellipPiers NOT shielded
ldquoLength of Needrdquo NOT met per SPI Part B (Excel Design Tool)
Piers are behind the ldquogatingrdquo(break-away) portion of Approach Terminal
Guardrail Index 536-001
Approach Terminals Any issue hereYES
Second issuehellipFlared Terminal usage on hold per RDB18-02
Regardlesshellip ldquoTaper Raterdquo too steep here at Approach Terminal (about 13 shown)
Guardrail requires 115 Max Taper Rate per SPI Part I
Guardrail Index 536-001
Approach Terminals Any issue hereAnswerhellip YES
Third issuehellipldquoBarrier Setbackrdquo requirement likely not satisfied
per FDM Table 21542(5 feet or greater)hellip
Guardrail Index 536-001
Approach Terminals Any issue hereYES
Fourth issuehellipldquoTrailing Anchoragerdquo not properly extended downstream of hazard
25-foot Requirement SPI C1 amp lsquoLONrsquo Design Tool (Excel)hellip
Answerhellip
Guardrail Index 536-001
Approach Terminals Any issue hereYES
Fourth issuehellipldquoTrailing Anchoragerdquo not properly extended downstream of hazard
25-foot Requirement SPI C1 amp lsquoLONrsquo Design Tool (Excel)hellip
AnswerhellipFrom lsquoLength of Needrsquo Excel Sheethellip
Guardrail Index 536-001 Crash Cushion Index 544-001
Approach Terminals Solution 1lsquoCrash Cushionrsquobull ldquoSystem Widthrdquo ndash
lsquoWidersquo per SPI 544-001 Part C
bull ldquoLength Restrictionrdquo - per SPI 544-001 Part F
bull Contact Central Office for guidance
Note Define Crash Cushion with provided CADD cellhellipldquoSummary of Permanent Crash Cushions Tablerdquo
Guardrail Index 536-001 Crash Cushion Index 544-001
Approach Terminals Solution 1lsquoCrash Cushionrsquobull Guardrail ldquoreduced
post spacingrdquo to reduce required hazard setback per FDM Table 21542
bull Again contact Central Office for guidance for such limited space
Concrete Barrier Index 521-001 Crash Cushion 544-001
Approach Terminals Solution 2lsquoConcrete Barrierrsquo amp lsquoCrash Cushionrsquo
bull Requires project-specific design
bull Contact Central Office for guidance for such limited space
Questions
Richard Stepp PEStandard Plans Engineer
Central Office Roadway Design(850) 414-4313
richardsteppdotstateflus
Standard Plans Single-Slope Barriers
Guardrail Index 536-001 Sheets 7-8
Approach TerminalsYES Wrong
First issuehellipFront slope break should be 6 feet behind guardrail face at post 1 per the Standards (110 Min)
Second issuehellipMisc Asphalt should extend 10 feet upstream of post 1 per Standards
Answerhellip
Example of Poor Grading (The reason for Misc Asphalt requirement)
Photo Credit Bill Fitzgerald PE
Guardrail Index 536-001 Sheets 7-8
Approach Terminals SolutionYES Wrong
First issuehellipFront slope break should be 6 feet behind guardrail face at post 1 per the Standards (110 Min)
Second issuehellipMisc Asphalt should extend 10 feet upstream of post 1 per Standards
Answerhellip
Correctedhellip
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Any issues hereYES Wrong
First issuehellipTrees are within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
Second issuehellipTree violates barrier setback per FDM Table 21542
Answerhellip
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Any issues hereYES Wrong
First issuehellipTrees are within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
Second issuehellipTree violates barrier setback per FDM Table 21542
Answerhellip
Guardrail Index 536-001 Sheets 7-8
Approach TerminalsYES Wrong
First issuehellipTrees are within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
From Standard Planshellip
Guardrail Index 536-001 Sheets 7-8
Approach Terminals
CREDIT VIRGINIA DOT ndash SKT Crash Test Published October 2016
httpswwwyoutubecomwatchv=OsKlfatcjogampfeature=youtube
httpswwwyoutubecomwatchv=h7tct7Oo9-8ampfeature=youtube
YES Wrong
First issuehellipTrees are within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
Guardrail Index 536-001 Sheets 7-8
Approach Terminals
CREDIT VIRGINIA DOT ndash SKT Crash Test Published October 2016
httpswwwyoutubecomwatchv=74ImLTY-PhUampfeature=youtube
YES Wrong
First issuehellipTrees are within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
Guardrail Index 536-001 Sheets 7-8
Approach TerminalsYES Wrong
First issuehellipTrees are within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
From Standard Planshellip
Guardrail Index 536-001
YES Wrong
Second issuehellipTree violates barrier setback per FDM Table 21542
Guardrail Index 536-001
YES Wrong
Second issuehellipTree violates barrier setback per FDM Table 21542
From FDMhellip
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Any issue hereYES Wrong
First issuehellipPerpendicular guardrail is not proven crashworthybull No end treatmentsbull Violates ldquotaper raterdquo
requirements of SPI Part I (big time)
bull Requires shielding if within Clear Zone
Answerhellip
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Any issue hereYES Wrong
Second issuehellipPerpendicular guardrail within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Any issue hereYES Wrong
Third issuehellipPerpendicular guardrail violates barrier setback per FDM Table 21542
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Solution 1
REMOVE theperpendicularGuardrail
Orhellip
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Solution 2
1 Extend Guardrail to meet Length of Need per SPI Part B (Excel lsquoDesign Toolrsquo) which is Roadside Design Guide Eq 5-3
2 Meet minimum barrier setback per FDM Table 21542 (5 feet for general guardrail)
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Final Case StudyAssumptionsbull Design Speed
50 mph
bull Piers designed to withstand 600 kip impact load per FDM215454(Pier Protection Barrier notRequired)
Guardrail Index 536-001
Approach Terminals Any issue hereAnswerhellip YES
First issuehellipPiers NOT shielded
ldquoLength of Needrdquo NOT met per SPI Part B (Excel Design Tool)
Guardrail Index 536-001
Approach Terminals Any issue hereAnswerhellip YES
First issuehellipPiers NOT shielded
ldquoLength of Needrdquo NOT met per SPI Part B (Excel Design Tool)
Piers are behind the ldquogatingrdquo(break-away) portion of Approach Terminal
Guardrail Index 536-001
Approach Terminals Any issue hereYES
Second issuehellipFlared Terminal usage on hold per RDB18-02
Regardlesshellip ldquoTaper Raterdquo too steep here at Approach Terminal (about 13 shown)
Guardrail requires 115 Max Taper Rate per SPI Part I
Guardrail Index 536-001
Approach Terminals Any issue hereAnswerhellip YES
Third issuehellipldquoBarrier Setbackrdquo requirement likely not satisfied
per FDM Table 21542(5 feet or greater)hellip
Guardrail Index 536-001
Approach Terminals Any issue hereYES
Fourth issuehellipldquoTrailing Anchoragerdquo not properly extended downstream of hazard
25-foot Requirement SPI C1 amp lsquoLONrsquo Design Tool (Excel)hellip
Answerhellip
Guardrail Index 536-001
Approach Terminals Any issue hereYES
Fourth issuehellipldquoTrailing Anchoragerdquo not properly extended downstream of hazard
25-foot Requirement SPI C1 amp lsquoLONrsquo Design Tool (Excel)hellip
AnswerhellipFrom lsquoLength of Needrsquo Excel Sheethellip
Guardrail Index 536-001 Crash Cushion Index 544-001
Approach Terminals Solution 1lsquoCrash Cushionrsquobull ldquoSystem Widthrdquo ndash
lsquoWidersquo per SPI 544-001 Part C
bull ldquoLength Restrictionrdquo - per SPI 544-001 Part F
bull Contact Central Office for guidance
Note Define Crash Cushion with provided CADD cellhellipldquoSummary of Permanent Crash Cushions Tablerdquo
Guardrail Index 536-001 Crash Cushion Index 544-001
Approach Terminals Solution 1lsquoCrash Cushionrsquobull Guardrail ldquoreduced
post spacingrdquo to reduce required hazard setback per FDM Table 21542
bull Again contact Central Office for guidance for such limited space
Concrete Barrier Index 521-001 Crash Cushion 544-001
Approach Terminals Solution 2lsquoConcrete Barrierrsquo amp lsquoCrash Cushionrsquo
bull Requires project-specific design
bull Contact Central Office for guidance for such limited space
Questions
Richard Stepp PEStandard Plans Engineer
Central Office Roadway Design(850) 414-4313
richardsteppdotstateflus
Standard Plans Single-Slope Barriers
Guardrail Index 536-001 Sheets 7-8
Approach Terminals SolutionYES Wrong
First issuehellipFront slope break should be 6 feet behind guardrail face at post 1 per the Standards (110 Min)
Second issuehellipMisc Asphalt should extend 10 feet upstream of post 1 per Standards
Answerhellip
Correctedhellip
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Any issues hereYES Wrong
First issuehellipTrees are within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
Second issuehellipTree violates barrier setback per FDM Table 21542
Answerhellip
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Any issues hereYES Wrong
First issuehellipTrees are within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
Second issuehellipTree violates barrier setback per FDM Table 21542
Answerhellip
Guardrail Index 536-001 Sheets 7-8
Approach TerminalsYES Wrong
First issuehellipTrees are within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
From Standard Planshellip
Guardrail Index 536-001 Sheets 7-8
Approach Terminals
CREDIT VIRGINIA DOT ndash SKT Crash Test Published October 2016
httpswwwyoutubecomwatchv=OsKlfatcjogampfeature=youtube
httpswwwyoutubecomwatchv=h7tct7Oo9-8ampfeature=youtube
YES Wrong
First issuehellipTrees are within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
Guardrail Index 536-001 Sheets 7-8
Approach Terminals
CREDIT VIRGINIA DOT ndash SKT Crash Test Published October 2016
httpswwwyoutubecomwatchv=74ImLTY-PhUampfeature=youtube
YES Wrong
First issuehellipTrees are within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
Guardrail Index 536-001 Sheets 7-8
Approach TerminalsYES Wrong
First issuehellipTrees are within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
From Standard Planshellip
Guardrail Index 536-001
YES Wrong
Second issuehellipTree violates barrier setback per FDM Table 21542
Guardrail Index 536-001
YES Wrong
Second issuehellipTree violates barrier setback per FDM Table 21542
From FDMhellip
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Any issue hereYES Wrong
First issuehellipPerpendicular guardrail is not proven crashworthybull No end treatmentsbull Violates ldquotaper raterdquo
requirements of SPI Part I (big time)
bull Requires shielding if within Clear Zone
Answerhellip
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Any issue hereYES Wrong
Second issuehellipPerpendicular guardrail within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Any issue hereYES Wrong
Third issuehellipPerpendicular guardrail violates barrier setback per FDM Table 21542
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Solution 1
REMOVE theperpendicularGuardrail
Orhellip
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Solution 2
1 Extend Guardrail to meet Length of Need per SPI Part B (Excel lsquoDesign Toolrsquo) which is Roadside Design Guide Eq 5-3
2 Meet minimum barrier setback per FDM Table 21542 (5 feet for general guardrail)
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Final Case StudyAssumptionsbull Design Speed
50 mph
bull Piers designed to withstand 600 kip impact load per FDM215454(Pier Protection Barrier notRequired)
Guardrail Index 536-001
Approach Terminals Any issue hereAnswerhellip YES
First issuehellipPiers NOT shielded
ldquoLength of Needrdquo NOT met per SPI Part B (Excel Design Tool)
Guardrail Index 536-001
Approach Terminals Any issue hereAnswerhellip YES
First issuehellipPiers NOT shielded
ldquoLength of Needrdquo NOT met per SPI Part B (Excel Design Tool)
Piers are behind the ldquogatingrdquo(break-away) portion of Approach Terminal
Guardrail Index 536-001
Approach Terminals Any issue hereYES
Second issuehellipFlared Terminal usage on hold per RDB18-02
Regardlesshellip ldquoTaper Raterdquo too steep here at Approach Terminal (about 13 shown)
Guardrail requires 115 Max Taper Rate per SPI Part I
Guardrail Index 536-001
Approach Terminals Any issue hereAnswerhellip YES
Third issuehellipldquoBarrier Setbackrdquo requirement likely not satisfied
per FDM Table 21542(5 feet or greater)hellip
Guardrail Index 536-001
Approach Terminals Any issue hereYES
Fourth issuehellipldquoTrailing Anchoragerdquo not properly extended downstream of hazard
25-foot Requirement SPI C1 amp lsquoLONrsquo Design Tool (Excel)hellip
Answerhellip
Guardrail Index 536-001
Approach Terminals Any issue hereYES
Fourth issuehellipldquoTrailing Anchoragerdquo not properly extended downstream of hazard
25-foot Requirement SPI C1 amp lsquoLONrsquo Design Tool (Excel)hellip
AnswerhellipFrom lsquoLength of Needrsquo Excel Sheethellip
Guardrail Index 536-001 Crash Cushion Index 544-001
Approach Terminals Solution 1lsquoCrash Cushionrsquobull ldquoSystem Widthrdquo ndash
lsquoWidersquo per SPI 544-001 Part C
bull ldquoLength Restrictionrdquo - per SPI 544-001 Part F
bull Contact Central Office for guidance
Note Define Crash Cushion with provided CADD cellhellipldquoSummary of Permanent Crash Cushions Tablerdquo
Guardrail Index 536-001 Crash Cushion Index 544-001
Approach Terminals Solution 1lsquoCrash Cushionrsquobull Guardrail ldquoreduced
post spacingrdquo to reduce required hazard setback per FDM Table 21542
bull Again contact Central Office for guidance for such limited space
Concrete Barrier Index 521-001 Crash Cushion 544-001
Approach Terminals Solution 2lsquoConcrete Barrierrsquo amp lsquoCrash Cushionrsquo
bull Requires project-specific design
bull Contact Central Office for guidance for such limited space
Questions
Richard Stepp PEStandard Plans Engineer
Central Office Roadway Design(850) 414-4313
richardsteppdotstateflus
Standard Plans Single-Slope Barriers
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Any issues hereYES Wrong
First issuehellipTrees are within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
Second issuehellipTree violates barrier setback per FDM Table 21542
Answerhellip
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Any issues hereYES Wrong
First issuehellipTrees are within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
Second issuehellipTree violates barrier setback per FDM Table 21542
Answerhellip
Guardrail Index 536-001 Sheets 7-8
Approach TerminalsYES Wrong
First issuehellipTrees are within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
From Standard Planshellip
Guardrail Index 536-001 Sheets 7-8
Approach Terminals
CREDIT VIRGINIA DOT ndash SKT Crash Test Published October 2016
httpswwwyoutubecomwatchv=OsKlfatcjogampfeature=youtube
httpswwwyoutubecomwatchv=h7tct7Oo9-8ampfeature=youtube
YES Wrong
First issuehellipTrees are within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
Guardrail Index 536-001 Sheets 7-8
Approach Terminals
CREDIT VIRGINIA DOT ndash SKT Crash Test Published October 2016
httpswwwyoutubecomwatchv=74ImLTY-PhUampfeature=youtube
YES Wrong
First issuehellipTrees are within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
Guardrail Index 536-001 Sheets 7-8
Approach TerminalsYES Wrong
First issuehellipTrees are within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
From Standard Planshellip
Guardrail Index 536-001
YES Wrong
Second issuehellipTree violates barrier setback per FDM Table 21542
Guardrail Index 536-001
YES Wrong
Second issuehellipTree violates barrier setback per FDM Table 21542
From FDMhellip
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Any issue hereYES Wrong
First issuehellipPerpendicular guardrail is not proven crashworthybull No end treatmentsbull Violates ldquotaper raterdquo
requirements of SPI Part I (big time)
bull Requires shielding if within Clear Zone
Answerhellip
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Any issue hereYES Wrong
Second issuehellipPerpendicular guardrail within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Any issue hereYES Wrong
Third issuehellipPerpendicular guardrail violates barrier setback per FDM Table 21542
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Solution 1
REMOVE theperpendicularGuardrail
Orhellip
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Solution 2
1 Extend Guardrail to meet Length of Need per SPI Part B (Excel lsquoDesign Toolrsquo) which is Roadside Design Guide Eq 5-3
2 Meet minimum barrier setback per FDM Table 21542 (5 feet for general guardrail)
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Final Case StudyAssumptionsbull Design Speed
50 mph
bull Piers designed to withstand 600 kip impact load per FDM215454(Pier Protection Barrier notRequired)
Guardrail Index 536-001
Approach Terminals Any issue hereAnswerhellip YES
First issuehellipPiers NOT shielded
ldquoLength of Needrdquo NOT met per SPI Part B (Excel Design Tool)
Guardrail Index 536-001
Approach Terminals Any issue hereAnswerhellip YES
First issuehellipPiers NOT shielded
ldquoLength of Needrdquo NOT met per SPI Part B (Excel Design Tool)
Piers are behind the ldquogatingrdquo(break-away) portion of Approach Terminal
Guardrail Index 536-001
Approach Terminals Any issue hereYES
Second issuehellipFlared Terminal usage on hold per RDB18-02
Regardlesshellip ldquoTaper Raterdquo too steep here at Approach Terminal (about 13 shown)
Guardrail requires 115 Max Taper Rate per SPI Part I
Guardrail Index 536-001
Approach Terminals Any issue hereAnswerhellip YES
Third issuehellipldquoBarrier Setbackrdquo requirement likely not satisfied
per FDM Table 21542(5 feet or greater)hellip
Guardrail Index 536-001
Approach Terminals Any issue hereYES
Fourth issuehellipldquoTrailing Anchoragerdquo not properly extended downstream of hazard
25-foot Requirement SPI C1 amp lsquoLONrsquo Design Tool (Excel)hellip
Answerhellip
Guardrail Index 536-001
Approach Terminals Any issue hereYES
Fourth issuehellipldquoTrailing Anchoragerdquo not properly extended downstream of hazard
25-foot Requirement SPI C1 amp lsquoLONrsquo Design Tool (Excel)hellip
AnswerhellipFrom lsquoLength of Needrsquo Excel Sheethellip
Guardrail Index 536-001 Crash Cushion Index 544-001
Approach Terminals Solution 1lsquoCrash Cushionrsquobull ldquoSystem Widthrdquo ndash
lsquoWidersquo per SPI 544-001 Part C
bull ldquoLength Restrictionrdquo - per SPI 544-001 Part F
bull Contact Central Office for guidance
Note Define Crash Cushion with provided CADD cellhellipldquoSummary of Permanent Crash Cushions Tablerdquo
Guardrail Index 536-001 Crash Cushion Index 544-001
Approach Terminals Solution 1lsquoCrash Cushionrsquobull Guardrail ldquoreduced
post spacingrdquo to reduce required hazard setback per FDM Table 21542
bull Again contact Central Office for guidance for such limited space
Concrete Barrier Index 521-001 Crash Cushion 544-001
Approach Terminals Solution 2lsquoConcrete Barrierrsquo amp lsquoCrash Cushionrsquo
bull Requires project-specific design
bull Contact Central Office for guidance for such limited space
Questions
Richard Stepp PEStandard Plans Engineer
Central Office Roadway Design(850) 414-4313
richardsteppdotstateflus
Standard Plans Single-Slope Barriers
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Any issues hereYES Wrong
First issuehellipTrees are within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
Second issuehellipTree violates barrier setback per FDM Table 21542
Answerhellip
Guardrail Index 536-001 Sheets 7-8
Approach TerminalsYES Wrong
First issuehellipTrees are within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
From Standard Planshellip
Guardrail Index 536-001 Sheets 7-8
Approach Terminals
CREDIT VIRGINIA DOT ndash SKT Crash Test Published October 2016
httpswwwyoutubecomwatchv=OsKlfatcjogampfeature=youtube
httpswwwyoutubecomwatchv=h7tct7Oo9-8ampfeature=youtube
YES Wrong
First issuehellipTrees are within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
Guardrail Index 536-001 Sheets 7-8
Approach Terminals
CREDIT VIRGINIA DOT ndash SKT Crash Test Published October 2016
httpswwwyoutubecomwatchv=74ImLTY-PhUampfeature=youtube
YES Wrong
First issuehellipTrees are within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
Guardrail Index 536-001 Sheets 7-8
Approach TerminalsYES Wrong
First issuehellipTrees are within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
From Standard Planshellip
Guardrail Index 536-001
YES Wrong
Second issuehellipTree violates barrier setback per FDM Table 21542
Guardrail Index 536-001
YES Wrong
Second issuehellipTree violates barrier setback per FDM Table 21542
From FDMhellip
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Any issue hereYES Wrong
First issuehellipPerpendicular guardrail is not proven crashworthybull No end treatmentsbull Violates ldquotaper raterdquo
requirements of SPI Part I (big time)
bull Requires shielding if within Clear Zone
Answerhellip
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Any issue hereYES Wrong
Second issuehellipPerpendicular guardrail within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Any issue hereYES Wrong
Third issuehellipPerpendicular guardrail violates barrier setback per FDM Table 21542
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Solution 1
REMOVE theperpendicularGuardrail
Orhellip
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Solution 2
1 Extend Guardrail to meet Length of Need per SPI Part B (Excel lsquoDesign Toolrsquo) which is Roadside Design Guide Eq 5-3
2 Meet minimum barrier setback per FDM Table 21542 (5 feet for general guardrail)
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Final Case StudyAssumptionsbull Design Speed
50 mph
bull Piers designed to withstand 600 kip impact load per FDM215454(Pier Protection Barrier notRequired)
Guardrail Index 536-001
Approach Terminals Any issue hereAnswerhellip YES
First issuehellipPiers NOT shielded
ldquoLength of Needrdquo NOT met per SPI Part B (Excel Design Tool)
Guardrail Index 536-001
Approach Terminals Any issue hereAnswerhellip YES
First issuehellipPiers NOT shielded
ldquoLength of Needrdquo NOT met per SPI Part B (Excel Design Tool)
Piers are behind the ldquogatingrdquo(break-away) portion of Approach Terminal
Guardrail Index 536-001
Approach Terminals Any issue hereYES
Second issuehellipFlared Terminal usage on hold per RDB18-02
Regardlesshellip ldquoTaper Raterdquo too steep here at Approach Terminal (about 13 shown)
Guardrail requires 115 Max Taper Rate per SPI Part I
Guardrail Index 536-001
Approach Terminals Any issue hereAnswerhellip YES
Third issuehellipldquoBarrier Setbackrdquo requirement likely not satisfied
per FDM Table 21542(5 feet or greater)hellip
Guardrail Index 536-001
Approach Terminals Any issue hereYES
Fourth issuehellipldquoTrailing Anchoragerdquo not properly extended downstream of hazard
25-foot Requirement SPI C1 amp lsquoLONrsquo Design Tool (Excel)hellip
Answerhellip
Guardrail Index 536-001
Approach Terminals Any issue hereYES
Fourth issuehellipldquoTrailing Anchoragerdquo not properly extended downstream of hazard
25-foot Requirement SPI C1 amp lsquoLONrsquo Design Tool (Excel)hellip
AnswerhellipFrom lsquoLength of Needrsquo Excel Sheethellip
Guardrail Index 536-001 Crash Cushion Index 544-001
Approach Terminals Solution 1lsquoCrash Cushionrsquobull ldquoSystem Widthrdquo ndash
lsquoWidersquo per SPI 544-001 Part C
bull ldquoLength Restrictionrdquo - per SPI 544-001 Part F
bull Contact Central Office for guidance
Note Define Crash Cushion with provided CADD cellhellipldquoSummary of Permanent Crash Cushions Tablerdquo
Guardrail Index 536-001 Crash Cushion Index 544-001
Approach Terminals Solution 1lsquoCrash Cushionrsquobull Guardrail ldquoreduced
post spacingrdquo to reduce required hazard setback per FDM Table 21542
bull Again contact Central Office for guidance for such limited space
Concrete Barrier Index 521-001 Crash Cushion 544-001
Approach Terminals Solution 2lsquoConcrete Barrierrsquo amp lsquoCrash Cushionrsquo
bull Requires project-specific design
bull Contact Central Office for guidance for such limited space
Questions
Richard Stepp PEStandard Plans Engineer
Central Office Roadway Design(850) 414-4313
richardsteppdotstateflus
Standard Plans Single-Slope Barriers
Guardrail Index 536-001 Sheets 7-8
Approach TerminalsYES Wrong
First issuehellipTrees are within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
From Standard Planshellip
Guardrail Index 536-001 Sheets 7-8
Approach Terminals
CREDIT VIRGINIA DOT ndash SKT Crash Test Published October 2016
httpswwwyoutubecomwatchv=OsKlfatcjogampfeature=youtube
httpswwwyoutubecomwatchv=h7tct7Oo9-8ampfeature=youtube
YES Wrong
First issuehellipTrees are within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
Guardrail Index 536-001 Sheets 7-8
Approach Terminals
CREDIT VIRGINIA DOT ndash SKT Crash Test Published October 2016
httpswwwyoutubecomwatchv=74ImLTY-PhUampfeature=youtube
YES Wrong
First issuehellipTrees are within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
Guardrail Index 536-001 Sheets 7-8
Approach TerminalsYES Wrong
First issuehellipTrees are within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
From Standard Planshellip
Guardrail Index 536-001
YES Wrong
Second issuehellipTree violates barrier setback per FDM Table 21542
Guardrail Index 536-001
YES Wrong
Second issuehellipTree violates barrier setback per FDM Table 21542
From FDMhellip
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Any issue hereYES Wrong
First issuehellipPerpendicular guardrail is not proven crashworthybull No end treatmentsbull Violates ldquotaper raterdquo
requirements of SPI Part I (big time)
bull Requires shielding if within Clear Zone
Answerhellip
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Any issue hereYES Wrong
Second issuehellipPerpendicular guardrail within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Any issue hereYES Wrong
Third issuehellipPerpendicular guardrail violates barrier setback per FDM Table 21542
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Solution 1
REMOVE theperpendicularGuardrail
Orhellip
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Solution 2
1 Extend Guardrail to meet Length of Need per SPI Part B (Excel lsquoDesign Toolrsquo) which is Roadside Design Guide Eq 5-3
2 Meet minimum barrier setback per FDM Table 21542 (5 feet for general guardrail)
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Final Case StudyAssumptionsbull Design Speed
50 mph
bull Piers designed to withstand 600 kip impact load per FDM215454(Pier Protection Barrier notRequired)
Guardrail Index 536-001
Approach Terminals Any issue hereAnswerhellip YES
First issuehellipPiers NOT shielded
ldquoLength of Needrdquo NOT met per SPI Part B (Excel Design Tool)
Guardrail Index 536-001
Approach Terminals Any issue hereAnswerhellip YES
First issuehellipPiers NOT shielded
ldquoLength of Needrdquo NOT met per SPI Part B (Excel Design Tool)
Piers are behind the ldquogatingrdquo(break-away) portion of Approach Terminal
Guardrail Index 536-001
Approach Terminals Any issue hereYES
Second issuehellipFlared Terminal usage on hold per RDB18-02
Regardlesshellip ldquoTaper Raterdquo too steep here at Approach Terminal (about 13 shown)
Guardrail requires 115 Max Taper Rate per SPI Part I
Guardrail Index 536-001
Approach Terminals Any issue hereAnswerhellip YES
Third issuehellipldquoBarrier Setbackrdquo requirement likely not satisfied
per FDM Table 21542(5 feet or greater)hellip
Guardrail Index 536-001
Approach Terminals Any issue hereYES
Fourth issuehellipldquoTrailing Anchoragerdquo not properly extended downstream of hazard
25-foot Requirement SPI C1 amp lsquoLONrsquo Design Tool (Excel)hellip
Answerhellip
Guardrail Index 536-001
Approach Terminals Any issue hereYES
Fourth issuehellipldquoTrailing Anchoragerdquo not properly extended downstream of hazard
25-foot Requirement SPI C1 amp lsquoLONrsquo Design Tool (Excel)hellip
AnswerhellipFrom lsquoLength of Needrsquo Excel Sheethellip
Guardrail Index 536-001 Crash Cushion Index 544-001
Approach Terminals Solution 1lsquoCrash Cushionrsquobull ldquoSystem Widthrdquo ndash
lsquoWidersquo per SPI 544-001 Part C
bull ldquoLength Restrictionrdquo - per SPI 544-001 Part F
bull Contact Central Office for guidance
Note Define Crash Cushion with provided CADD cellhellipldquoSummary of Permanent Crash Cushions Tablerdquo
Guardrail Index 536-001 Crash Cushion Index 544-001
Approach Terminals Solution 1lsquoCrash Cushionrsquobull Guardrail ldquoreduced
post spacingrdquo to reduce required hazard setback per FDM Table 21542
bull Again contact Central Office for guidance for such limited space
Concrete Barrier Index 521-001 Crash Cushion 544-001
Approach Terminals Solution 2lsquoConcrete Barrierrsquo amp lsquoCrash Cushionrsquo
bull Requires project-specific design
bull Contact Central Office for guidance for such limited space
Questions
Richard Stepp PEStandard Plans Engineer
Central Office Roadway Design(850) 414-4313
richardsteppdotstateflus
Standard Plans Single-Slope Barriers
Guardrail Index 536-001 Sheets 7-8
Approach Terminals
CREDIT VIRGINIA DOT ndash SKT Crash Test Published October 2016
httpswwwyoutubecomwatchv=OsKlfatcjogampfeature=youtube
httpswwwyoutubecomwatchv=h7tct7Oo9-8ampfeature=youtube
YES Wrong
First issuehellipTrees are within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
Guardrail Index 536-001 Sheets 7-8
Approach Terminals
CREDIT VIRGINIA DOT ndash SKT Crash Test Published October 2016
httpswwwyoutubecomwatchv=74ImLTY-PhUampfeature=youtube
YES Wrong
First issuehellipTrees are within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
Guardrail Index 536-001 Sheets 7-8
Approach TerminalsYES Wrong
First issuehellipTrees are within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
From Standard Planshellip
Guardrail Index 536-001
YES Wrong
Second issuehellipTree violates barrier setback per FDM Table 21542
Guardrail Index 536-001
YES Wrong
Second issuehellipTree violates barrier setback per FDM Table 21542
From FDMhellip
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Any issue hereYES Wrong
First issuehellipPerpendicular guardrail is not proven crashworthybull No end treatmentsbull Violates ldquotaper raterdquo
requirements of SPI Part I (big time)
bull Requires shielding if within Clear Zone
Answerhellip
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Any issue hereYES Wrong
Second issuehellipPerpendicular guardrail within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Any issue hereYES Wrong
Third issuehellipPerpendicular guardrail violates barrier setback per FDM Table 21542
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Solution 1
REMOVE theperpendicularGuardrail
Orhellip
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Solution 2
1 Extend Guardrail to meet Length of Need per SPI Part B (Excel lsquoDesign Toolrsquo) which is Roadside Design Guide Eq 5-3
2 Meet minimum barrier setback per FDM Table 21542 (5 feet for general guardrail)
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Final Case StudyAssumptionsbull Design Speed
50 mph
bull Piers designed to withstand 600 kip impact load per FDM215454(Pier Protection Barrier notRequired)
Guardrail Index 536-001
Approach Terminals Any issue hereAnswerhellip YES
First issuehellipPiers NOT shielded
ldquoLength of Needrdquo NOT met per SPI Part B (Excel Design Tool)
Guardrail Index 536-001
Approach Terminals Any issue hereAnswerhellip YES
First issuehellipPiers NOT shielded
ldquoLength of Needrdquo NOT met per SPI Part B (Excel Design Tool)
Piers are behind the ldquogatingrdquo(break-away) portion of Approach Terminal
Guardrail Index 536-001
Approach Terminals Any issue hereYES
Second issuehellipFlared Terminal usage on hold per RDB18-02
Regardlesshellip ldquoTaper Raterdquo too steep here at Approach Terminal (about 13 shown)
Guardrail requires 115 Max Taper Rate per SPI Part I
Guardrail Index 536-001
Approach Terminals Any issue hereAnswerhellip YES
Third issuehellipldquoBarrier Setbackrdquo requirement likely not satisfied
per FDM Table 21542(5 feet or greater)hellip
Guardrail Index 536-001
Approach Terminals Any issue hereYES
Fourth issuehellipldquoTrailing Anchoragerdquo not properly extended downstream of hazard
25-foot Requirement SPI C1 amp lsquoLONrsquo Design Tool (Excel)hellip
Answerhellip
Guardrail Index 536-001
Approach Terminals Any issue hereYES
Fourth issuehellipldquoTrailing Anchoragerdquo not properly extended downstream of hazard
25-foot Requirement SPI C1 amp lsquoLONrsquo Design Tool (Excel)hellip
AnswerhellipFrom lsquoLength of Needrsquo Excel Sheethellip
Guardrail Index 536-001 Crash Cushion Index 544-001
Approach Terminals Solution 1lsquoCrash Cushionrsquobull ldquoSystem Widthrdquo ndash
lsquoWidersquo per SPI 544-001 Part C
bull ldquoLength Restrictionrdquo - per SPI 544-001 Part F
bull Contact Central Office for guidance
Note Define Crash Cushion with provided CADD cellhellipldquoSummary of Permanent Crash Cushions Tablerdquo
Guardrail Index 536-001 Crash Cushion Index 544-001
Approach Terminals Solution 1lsquoCrash Cushionrsquobull Guardrail ldquoreduced
post spacingrdquo to reduce required hazard setback per FDM Table 21542
bull Again contact Central Office for guidance for such limited space
Concrete Barrier Index 521-001 Crash Cushion 544-001
Approach Terminals Solution 2lsquoConcrete Barrierrsquo amp lsquoCrash Cushionrsquo
bull Requires project-specific design
bull Contact Central Office for guidance for such limited space
Questions
Richard Stepp PEStandard Plans Engineer
Central Office Roadway Design(850) 414-4313
richardsteppdotstateflus
Standard Plans Single-Slope Barriers
Guardrail Index 536-001 Sheets 7-8
Approach Terminals
CREDIT VIRGINIA DOT ndash SKT Crash Test Published October 2016
httpswwwyoutubecomwatchv=74ImLTY-PhUampfeature=youtube
YES Wrong
First issuehellipTrees are within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
Guardrail Index 536-001 Sheets 7-8
Approach TerminalsYES Wrong
First issuehellipTrees are within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
From Standard Planshellip
Guardrail Index 536-001
YES Wrong
Second issuehellipTree violates barrier setback per FDM Table 21542
Guardrail Index 536-001
YES Wrong
Second issuehellipTree violates barrier setback per FDM Table 21542
From FDMhellip
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Any issue hereYES Wrong
First issuehellipPerpendicular guardrail is not proven crashworthybull No end treatmentsbull Violates ldquotaper raterdquo
requirements of SPI Part I (big time)
bull Requires shielding if within Clear Zone
Answerhellip
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Any issue hereYES Wrong
Second issuehellipPerpendicular guardrail within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Any issue hereYES Wrong
Third issuehellipPerpendicular guardrail violates barrier setback per FDM Table 21542
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Solution 1
REMOVE theperpendicularGuardrail
Orhellip
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Solution 2
1 Extend Guardrail to meet Length of Need per SPI Part B (Excel lsquoDesign Toolrsquo) which is Roadside Design Guide Eq 5-3
2 Meet minimum barrier setback per FDM Table 21542 (5 feet for general guardrail)
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Final Case StudyAssumptionsbull Design Speed
50 mph
bull Piers designed to withstand 600 kip impact load per FDM215454(Pier Protection Barrier notRequired)
Guardrail Index 536-001
Approach Terminals Any issue hereAnswerhellip YES
First issuehellipPiers NOT shielded
ldquoLength of Needrdquo NOT met per SPI Part B (Excel Design Tool)
Guardrail Index 536-001
Approach Terminals Any issue hereAnswerhellip YES
First issuehellipPiers NOT shielded
ldquoLength of Needrdquo NOT met per SPI Part B (Excel Design Tool)
Piers are behind the ldquogatingrdquo(break-away) portion of Approach Terminal
Guardrail Index 536-001
Approach Terminals Any issue hereYES
Second issuehellipFlared Terminal usage on hold per RDB18-02
Regardlesshellip ldquoTaper Raterdquo too steep here at Approach Terminal (about 13 shown)
Guardrail requires 115 Max Taper Rate per SPI Part I
Guardrail Index 536-001
Approach Terminals Any issue hereAnswerhellip YES
Third issuehellipldquoBarrier Setbackrdquo requirement likely not satisfied
per FDM Table 21542(5 feet or greater)hellip
Guardrail Index 536-001
Approach Terminals Any issue hereYES
Fourth issuehellipldquoTrailing Anchoragerdquo not properly extended downstream of hazard
25-foot Requirement SPI C1 amp lsquoLONrsquo Design Tool (Excel)hellip
Answerhellip
Guardrail Index 536-001
Approach Terminals Any issue hereYES
Fourth issuehellipldquoTrailing Anchoragerdquo not properly extended downstream of hazard
25-foot Requirement SPI C1 amp lsquoLONrsquo Design Tool (Excel)hellip
AnswerhellipFrom lsquoLength of Needrsquo Excel Sheethellip
Guardrail Index 536-001 Crash Cushion Index 544-001
Approach Terminals Solution 1lsquoCrash Cushionrsquobull ldquoSystem Widthrdquo ndash
lsquoWidersquo per SPI 544-001 Part C
bull ldquoLength Restrictionrdquo - per SPI 544-001 Part F
bull Contact Central Office for guidance
Note Define Crash Cushion with provided CADD cellhellipldquoSummary of Permanent Crash Cushions Tablerdquo
Guardrail Index 536-001 Crash Cushion Index 544-001
Approach Terminals Solution 1lsquoCrash Cushionrsquobull Guardrail ldquoreduced
post spacingrdquo to reduce required hazard setback per FDM Table 21542
bull Again contact Central Office for guidance for such limited space
Concrete Barrier Index 521-001 Crash Cushion 544-001
Approach Terminals Solution 2lsquoConcrete Barrierrsquo amp lsquoCrash Cushionrsquo
bull Requires project-specific design
bull Contact Central Office for guidance for such limited space
Questions
Richard Stepp PEStandard Plans Engineer
Central Office Roadway Design(850) 414-4313
richardsteppdotstateflus
Standard Plans Single-Slope Barriers
Guardrail Index 536-001 Sheets 7-8
Approach TerminalsYES Wrong
First issuehellipTrees are within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
From Standard Planshellip
Guardrail Index 536-001
YES Wrong
Second issuehellipTree violates barrier setback per FDM Table 21542
Guardrail Index 536-001
YES Wrong
Second issuehellipTree violates barrier setback per FDM Table 21542
From FDMhellip
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Any issue hereYES Wrong
First issuehellipPerpendicular guardrail is not proven crashworthybull No end treatmentsbull Violates ldquotaper raterdquo
requirements of SPI Part I (big time)
bull Requires shielding if within Clear Zone
Answerhellip
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Any issue hereYES Wrong
Second issuehellipPerpendicular guardrail within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Any issue hereYES Wrong
Third issuehellipPerpendicular guardrail violates barrier setback per FDM Table 21542
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Solution 1
REMOVE theperpendicularGuardrail
Orhellip
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Solution 2
1 Extend Guardrail to meet Length of Need per SPI Part B (Excel lsquoDesign Toolrsquo) which is Roadside Design Guide Eq 5-3
2 Meet minimum barrier setback per FDM Table 21542 (5 feet for general guardrail)
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Final Case StudyAssumptionsbull Design Speed
50 mph
bull Piers designed to withstand 600 kip impact load per FDM215454(Pier Protection Barrier notRequired)
Guardrail Index 536-001
Approach Terminals Any issue hereAnswerhellip YES
First issuehellipPiers NOT shielded
ldquoLength of Needrdquo NOT met per SPI Part B (Excel Design Tool)
Guardrail Index 536-001
Approach Terminals Any issue hereAnswerhellip YES
First issuehellipPiers NOT shielded
ldquoLength of Needrdquo NOT met per SPI Part B (Excel Design Tool)
Piers are behind the ldquogatingrdquo(break-away) portion of Approach Terminal
Guardrail Index 536-001
Approach Terminals Any issue hereYES
Second issuehellipFlared Terminal usage on hold per RDB18-02
Regardlesshellip ldquoTaper Raterdquo too steep here at Approach Terminal (about 13 shown)
Guardrail requires 115 Max Taper Rate per SPI Part I
Guardrail Index 536-001
Approach Terminals Any issue hereAnswerhellip YES
Third issuehellipldquoBarrier Setbackrdquo requirement likely not satisfied
per FDM Table 21542(5 feet or greater)hellip
Guardrail Index 536-001
Approach Terminals Any issue hereYES
Fourth issuehellipldquoTrailing Anchoragerdquo not properly extended downstream of hazard
25-foot Requirement SPI C1 amp lsquoLONrsquo Design Tool (Excel)hellip
Answerhellip
Guardrail Index 536-001
Approach Terminals Any issue hereYES
Fourth issuehellipldquoTrailing Anchoragerdquo not properly extended downstream of hazard
25-foot Requirement SPI C1 amp lsquoLONrsquo Design Tool (Excel)hellip
AnswerhellipFrom lsquoLength of Needrsquo Excel Sheethellip
Guardrail Index 536-001 Crash Cushion Index 544-001
Approach Terminals Solution 1lsquoCrash Cushionrsquobull ldquoSystem Widthrdquo ndash
lsquoWidersquo per SPI 544-001 Part C
bull ldquoLength Restrictionrdquo - per SPI 544-001 Part F
bull Contact Central Office for guidance
Note Define Crash Cushion with provided CADD cellhellipldquoSummary of Permanent Crash Cushions Tablerdquo
Guardrail Index 536-001 Crash Cushion Index 544-001
Approach Terminals Solution 1lsquoCrash Cushionrsquobull Guardrail ldquoreduced
post spacingrdquo to reduce required hazard setback per FDM Table 21542
bull Again contact Central Office for guidance for such limited space
Concrete Barrier Index 521-001 Crash Cushion 544-001
Approach Terminals Solution 2lsquoConcrete Barrierrsquo amp lsquoCrash Cushionrsquo
bull Requires project-specific design
bull Contact Central Office for guidance for such limited space
Questions
Richard Stepp PEStandard Plans Engineer
Central Office Roadway Design(850) 414-4313
richardsteppdotstateflus
Standard Plans Single-Slope Barriers
Guardrail Index 536-001
YES Wrong
Second issuehellipTree violates barrier setback per FDM Table 21542
Guardrail Index 536-001
YES Wrong
Second issuehellipTree violates barrier setback per FDM Table 21542
From FDMhellip
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Any issue hereYES Wrong
First issuehellipPerpendicular guardrail is not proven crashworthybull No end treatmentsbull Violates ldquotaper raterdquo
requirements of SPI Part I (big time)
bull Requires shielding if within Clear Zone
Answerhellip
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Any issue hereYES Wrong
Second issuehellipPerpendicular guardrail within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Any issue hereYES Wrong
Third issuehellipPerpendicular guardrail violates barrier setback per FDM Table 21542
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Solution 1
REMOVE theperpendicularGuardrail
Orhellip
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Solution 2
1 Extend Guardrail to meet Length of Need per SPI Part B (Excel lsquoDesign Toolrsquo) which is Roadside Design Guide Eq 5-3
2 Meet minimum barrier setback per FDM Table 21542 (5 feet for general guardrail)
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Final Case StudyAssumptionsbull Design Speed
50 mph
bull Piers designed to withstand 600 kip impact load per FDM215454(Pier Protection Barrier notRequired)
Guardrail Index 536-001
Approach Terminals Any issue hereAnswerhellip YES
First issuehellipPiers NOT shielded
ldquoLength of Needrdquo NOT met per SPI Part B (Excel Design Tool)
Guardrail Index 536-001
Approach Terminals Any issue hereAnswerhellip YES
First issuehellipPiers NOT shielded
ldquoLength of Needrdquo NOT met per SPI Part B (Excel Design Tool)
Piers are behind the ldquogatingrdquo(break-away) portion of Approach Terminal
Guardrail Index 536-001
Approach Terminals Any issue hereYES
Second issuehellipFlared Terminal usage on hold per RDB18-02
Regardlesshellip ldquoTaper Raterdquo too steep here at Approach Terminal (about 13 shown)
Guardrail requires 115 Max Taper Rate per SPI Part I
Guardrail Index 536-001
Approach Terminals Any issue hereAnswerhellip YES
Third issuehellipldquoBarrier Setbackrdquo requirement likely not satisfied
per FDM Table 21542(5 feet or greater)hellip
Guardrail Index 536-001
Approach Terminals Any issue hereYES
Fourth issuehellipldquoTrailing Anchoragerdquo not properly extended downstream of hazard
25-foot Requirement SPI C1 amp lsquoLONrsquo Design Tool (Excel)hellip
Answerhellip
Guardrail Index 536-001
Approach Terminals Any issue hereYES
Fourth issuehellipldquoTrailing Anchoragerdquo not properly extended downstream of hazard
25-foot Requirement SPI C1 amp lsquoLONrsquo Design Tool (Excel)hellip
AnswerhellipFrom lsquoLength of Needrsquo Excel Sheethellip
Guardrail Index 536-001 Crash Cushion Index 544-001
Approach Terminals Solution 1lsquoCrash Cushionrsquobull ldquoSystem Widthrdquo ndash
lsquoWidersquo per SPI 544-001 Part C
bull ldquoLength Restrictionrdquo - per SPI 544-001 Part F
bull Contact Central Office for guidance
Note Define Crash Cushion with provided CADD cellhellipldquoSummary of Permanent Crash Cushions Tablerdquo
Guardrail Index 536-001 Crash Cushion Index 544-001
Approach Terminals Solution 1lsquoCrash Cushionrsquobull Guardrail ldquoreduced
post spacingrdquo to reduce required hazard setback per FDM Table 21542
bull Again contact Central Office for guidance for such limited space
Concrete Barrier Index 521-001 Crash Cushion 544-001
Approach Terminals Solution 2lsquoConcrete Barrierrsquo amp lsquoCrash Cushionrsquo
bull Requires project-specific design
bull Contact Central Office for guidance for such limited space
Questions
Richard Stepp PEStandard Plans Engineer
Central Office Roadway Design(850) 414-4313
richardsteppdotstateflus
Standard Plans Single-Slope Barriers
Guardrail Index 536-001
YES Wrong
Second issuehellipTree violates barrier setback per FDM Table 21542
From FDMhellip
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Any issue hereYES Wrong
First issuehellipPerpendicular guardrail is not proven crashworthybull No end treatmentsbull Violates ldquotaper raterdquo
requirements of SPI Part I (big time)
bull Requires shielding if within Clear Zone
Answerhellip
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Any issue hereYES Wrong
Second issuehellipPerpendicular guardrail within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Any issue hereYES Wrong
Third issuehellipPerpendicular guardrail violates barrier setback per FDM Table 21542
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Solution 1
REMOVE theperpendicularGuardrail
Orhellip
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Solution 2
1 Extend Guardrail to meet Length of Need per SPI Part B (Excel lsquoDesign Toolrsquo) which is Roadside Design Guide Eq 5-3
2 Meet minimum barrier setback per FDM Table 21542 (5 feet for general guardrail)
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Final Case StudyAssumptionsbull Design Speed
50 mph
bull Piers designed to withstand 600 kip impact load per FDM215454(Pier Protection Barrier notRequired)
Guardrail Index 536-001
Approach Terminals Any issue hereAnswerhellip YES
First issuehellipPiers NOT shielded
ldquoLength of Needrdquo NOT met per SPI Part B (Excel Design Tool)
Guardrail Index 536-001
Approach Terminals Any issue hereAnswerhellip YES
First issuehellipPiers NOT shielded
ldquoLength of Needrdquo NOT met per SPI Part B (Excel Design Tool)
Piers are behind the ldquogatingrdquo(break-away) portion of Approach Terminal
Guardrail Index 536-001
Approach Terminals Any issue hereYES
Second issuehellipFlared Terminal usage on hold per RDB18-02
Regardlesshellip ldquoTaper Raterdquo too steep here at Approach Terminal (about 13 shown)
Guardrail requires 115 Max Taper Rate per SPI Part I
Guardrail Index 536-001
Approach Terminals Any issue hereAnswerhellip YES
Third issuehellipldquoBarrier Setbackrdquo requirement likely not satisfied
per FDM Table 21542(5 feet or greater)hellip
Guardrail Index 536-001
Approach Terminals Any issue hereYES
Fourth issuehellipldquoTrailing Anchoragerdquo not properly extended downstream of hazard
25-foot Requirement SPI C1 amp lsquoLONrsquo Design Tool (Excel)hellip
Answerhellip
Guardrail Index 536-001
Approach Terminals Any issue hereYES
Fourth issuehellipldquoTrailing Anchoragerdquo not properly extended downstream of hazard
25-foot Requirement SPI C1 amp lsquoLONrsquo Design Tool (Excel)hellip
AnswerhellipFrom lsquoLength of Needrsquo Excel Sheethellip
Guardrail Index 536-001 Crash Cushion Index 544-001
Approach Terminals Solution 1lsquoCrash Cushionrsquobull ldquoSystem Widthrdquo ndash
lsquoWidersquo per SPI 544-001 Part C
bull ldquoLength Restrictionrdquo - per SPI 544-001 Part F
bull Contact Central Office for guidance
Note Define Crash Cushion with provided CADD cellhellipldquoSummary of Permanent Crash Cushions Tablerdquo
Guardrail Index 536-001 Crash Cushion Index 544-001
Approach Terminals Solution 1lsquoCrash Cushionrsquobull Guardrail ldquoreduced
post spacingrdquo to reduce required hazard setback per FDM Table 21542
bull Again contact Central Office for guidance for such limited space
Concrete Barrier Index 521-001 Crash Cushion 544-001
Approach Terminals Solution 2lsquoConcrete Barrierrsquo amp lsquoCrash Cushionrsquo
bull Requires project-specific design
bull Contact Central Office for guidance for such limited space
Questions
Richard Stepp PEStandard Plans Engineer
Central Office Roadway Design(850) 414-4313
richardsteppdotstateflus
Standard Plans Single-Slope Barriers
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Any issue hereYES Wrong
First issuehellipPerpendicular guardrail is not proven crashworthybull No end treatmentsbull Violates ldquotaper raterdquo
requirements of SPI Part I (big time)
bull Requires shielding if within Clear Zone
Answerhellip
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Any issue hereYES Wrong
Second issuehellipPerpendicular guardrail within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Any issue hereYES Wrong
Third issuehellipPerpendicular guardrail violates barrier setback per FDM Table 21542
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Solution 1
REMOVE theperpendicularGuardrail
Orhellip
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Solution 2
1 Extend Guardrail to meet Length of Need per SPI Part B (Excel lsquoDesign Toolrsquo) which is Roadside Design Guide Eq 5-3
2 Meet minimum barrier setback per FDM Table 21542 (5 feet for general guardrail)
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Final Case StudyAssumptionsbull Design Speed
50 mph
bull Piers designed to withstand 600 kip impact load per FDM215454(Pier Protection Barrier notRequired)
Guardrail Index 536-001
Approach Terminals Any issue hereAnswerhellip YES
First issuehellipPiers NOT shielded
ldquoLength of Needrdquo NOT met per SPI Part B (Excel Design Tool)
Guardrail Index 536-001
Approach Terminals Any issue hereAnswerhellip YES
First issuehellipPiers NOT shielded
ldquoLength of Needrdquo NOT met per SPI Part B (Excel Design Tool)
Piers are behind the ldquogatingrdquo(break-away) portion of Approach Terminal
Guardrail Index 536-001
Approach Terminals Any issue hereYES
Second issuehellipFlared Terminal usage on hold per RDB18-02
Regardlesshellip ldquoTaper Raterdquo too steep here at Approach Terminal (about 13 shown)
Guardrail requires 115 Max Taper Rate per SPI Part I
Guardrail Index 536-001
Approach Terminals Any issue hereAnswerhellip YES
Third issuehellipldquoBarrier Setbackrdquo requirement likely not satisfied
per FDM Table 21542(5 feet or greater)hellip
Guardrail Index 536-001
Approach Terminals Any issue hereYES
Fourth issuehellipldquoTrailing Anchoragerdquo not properly extended downstream of hazard
25-foot Requirement SPI C1 amp lsquoLONrsquo Design Tool (Excel)hellip
Answerhellip
Guardrail Index 536-001
Approach Terminals Any issue hereYES
Fourth issuehellipldquoTrailing Anchoragerdquo not properly extended downstream of hazard
25-foot Requirement SPI C1 amp lsquoLONrsquo Design Tool (Excel)hellip
AnswerhellipFrom lsquoLength of Needrsquo Excel Sheethellip
Guardrail Index 536-001 Crash Cushion Index 544-001
Approach Terminals Solution 1lsquoCrash Cushionrsquobull ldquoSystem Widthrdquo ndash
lsquoWidersquo per SPI 544-001 Part C
bull ldquoLength Restrictionrdquo - per SPI 544-001 Part F
bull Contact Central Office for guidance
Note Define Crash Cushion with provided CADD cellhellipldquoSummary of Permanent Crash Cushions Tablerdquo
Guardrail Index 536-001 Crash Cushion Index 544-001
Approach Terminals Solution 1lsquoCrash Cushionrsquobull Guardrail ldquoreduced
post spacingrdquo to reduce required hazard setback per FDM Table 21542
bull Again contact Central Office for guidance for such limited space
Concrete Barrier Index 521-001 Crash Cushion 544-001
Approach Terminals Solution 2lsquoConcrete Barrierrsquo amp lsquoCrash Cushionrsquo
bull Requires project-specific design
bull Contact Central Office for guidance for such limited space
Questions
Richard Stepp PEStandard Plans Engineer
Central Office Roadway Design(850) 414-4313
richardsteppdotstateflus
Standard Plans Single-Slope Barriers
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Any issue hereYES Wrong
Second issuehellipPerpendicular guardrail within the Approach Terminalrsquos clear area in the Standard Plans (where a clear 110 slope required)
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Any issue hereYES Wrong
Third issuehellipPerpendicular guardrail violates barrier setback per FDM Table 21542
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Solution 1
REMOVE theperpendicularGuardrail
Orhellip
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Solution 2
1 Extend Guardrail to meet Length of Need per SPI Part B (Excel lsquoDesign Toolrsquo) which is Roadside Design Guide Eq 5-3
2 Meet minimum barrier setback per FDM Table 21542 (5 feet for general guardrail)
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Final Case StudyAssumptionsbull Design Speed
50 mph
bull Piers designed to withstand 600 kip impact load per FDM215454(Pier Protection Barrier notRequired)
Guardrail Index 536-001
Approach Terminals Any issue hereAnswerhellip YES
First issuehellipPiers NOT shielded
ldquoLength of Needrdquo NOT met per SPI Part B (Excel Design Tool)
Guardrail Index 536-001
Approach Terminals Any issue hereAnswerhellip YES
First issuehellipPiers NOT shielded
ldquoLength of Needrdquo NOT met per SPI Part B (Excel Design Tool)
Piers are behind the ldquogatingrdquo(break-away) portion of Approach Terminal
Guardrail Index 536-001
Approach Terminals Any issue hereYES
Second issuehellipFlared Terminal usage on hold per RDB18-02
Regardlesshellip ldquoTaper Raterdquo too steep here at Approach Terminal (about 13 shown)
Guardrail requires 115 Max Taper Rate per SPI Part I
Guardrail Index 536-001
Approach Terminals Any issue hereAnswerhellip YES
Third issuehellipldquoBarrier Setbackrdquo requirement likely not satisfied
per FDM Table 21542(5 feet or greater)hellip
Guardrail Index 536-001
Approach Terminals Any issue hereYES
Fourth issuehellipldquoTrailing Anchoragerdquo not properly extended downstream of hazard
25-foot Requirement SPI C1 amp lsquoLONrsquo Design Tool (Excel)hellip
Answerhellip
Guardrail Index 536-001
Approach Terminals Any issue hereYES
Fourth issuehellipldquoTrailing Anchoragerdquo not properly extended downstream of hazard
25-foot Requirement SPI C1 amp lsquoLONrsquo Design Tool (Excel)hellip
AnswerhellipFrom lsquoLength of Needrsquo Excel Sheethellip
Guardrail Index 536-001 Crash Cushion Index 544-001
Approach Terminals Solution 1lsquoCrash Cushionrsquobull ldquoSystem Widthrdquo ndash
lsquoWidersquo per SPI 544-001 Part C
bull ldquoLength Restrictionrdquo - per SPI 544-001 Part F
bull Contact Central Office for guidance
Note Define Crash Cushion with provided CADD cellhellipldquoSummary of Permanent Crash Cushions Tablerdquo
Guardrail Index 536-001 Crash Cushion Index 544-001
Approach Terminals Solution 1lsquoCrash Cushionrsquobull Guardrail ldquoreduced
post spacingrdquo to reduce required hazard setback per FDM Table 21542
bull Again contact Central Office for guidance for such limited space
Concrete Barrier Index 521-001 Crash Cushion 544-001
Approach Terminals Solution 2lsquoConcrete Barrierrsquo amp lsquoCrash Cushionrsquo
bull Requires project-specific design
bull Contact Central Office for guidance for such limited space
Questions
Richard Stepp PEStandard Plans Engineer
Central Office Roadway Design(850) 414-4313
richardsteppdotstateflus
Standard Plans Single-Slope Barriers
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Any issue hereYES Wrong
Third issuehellipPerpendicular guardrail violates barrier setback per FDM Table 21542
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Solution 1
REMOVE theperpendicularGuardrail
Orhellip
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Solution 2
1 Extend Guardrail to meet Length of Need per SPI Part B (Excel lsquoDesign Toolrsquo) which is Roadside Design Guide Eq 5-3
2 Meet minimum barrier setback per FDM Table 21542 (5 feet for general guardrail)
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Final Case StudyAssumptionsbull Design Speed
50 mph
bull Piers designed to withstand 600 kip impact load per FDM215454(Pier Protection Barrier notRequired)
Guardrail Index 536-001
Approach Terminals Any issue hereAnswerhellip YES
First issuehellipPiers NOT shielded
ldquoLength of Needrdquo NOT met per SPI Part B (Excel Design Tool)
Guardrail Index 536-001
Approach Terminals Any issue hereAnswerhellip YES
First issuehellipPiers NOT shielded
ldquoLength of Needrdquo NOT met per SPI Part B (Excel Design Tool)
Piers are behind the ldquogatingrdquo(break-away) portion of Approach Terminal
Guardrail Index 536-001
Approach Terminals Any issue hereYES
Second issuehellipFlared Terminal usage on hold per RDB18-02
Regardlesshellip ldquoTaper Raterdquo too steep here at Approach Terminal (about 13 shown)
Guardrail requires 115 Max Taper Rate per SPI Part I
Guardrail Index 536-001
Approach Terminals Any issue hereAnswerhellip YES
Third issuehellipldquoBarrier Setbackrdquo requirement likely not satisfied
per FDM Table 21542(5 feet or greater)hellip
Guardrail Index 536-001
Approach Terminals Any issue hereYES
Fourth issuehellipldquoTrailing Anchoragerdquo not properly extended downstream of hazard
25-foot Requirement SPI C1 amp lsquoLONrsquo Design Tool (Excel)hellip
Answerhellip
Guardrail Index 536-001
Approach Terminals Any issue hereYES
Fourth issuehellipldquoTrailing Anchoragerdquo not properly extended downstream of hazard
25-foot Requirement SPI C1 amp lsquoLONrsquo Design Tool (Excel)hellip
AnswerhellipFrom lsquoLength of Needrsquo Excel Sheethellip
Guardrail Index 536-001 Crash Cushion Index 544-001
Approach Terminals Solution 1lsquoCrash Cushionrsquobull ldquoSystem Widthrdquo ndash
lsquoWidersquo per SPI 544-001 Part C
bull ldquoLength Restrictionrdquo - per SPI 544-001 Part F
bull Contact Central Office for guidance
Note Define Crash Cushion with provided CADD cellhellipldquoSummary of Permanent Crash Cushions Tablerdquo
Guardrail Index 536-001 Crash Cushion Index 544-001
Approach Terminals Solution 1lsquoCrash Cushionrsquobull Guardrail ldquoreduced
post spacingrdquo to reduce required hazard setback per FDM Table 21542
bull Again contact Central Office for guidance for such limited space
Concrete Barrier Index 521-001 Crash Cushion 544-001
Approach Terminals Solution 2lsquoConcrete Barrierrsquo amp lsquoCrash Cushionrsquo
bull Requires project-specific design
bull Contact Central Office for guidance for such limited space
Questions
Richard Stepp PEStandard Plans Engineer
Central Office Roadway Design(850) 414-4313
richardsteppdotstateflus
Standard Plans Single-Slope Barriers
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Solution 1
REMOVE theperpendicularGuardrail
Orhellip
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Solution 2
1 Extend Guardrail to meet Length of Need per SPI Part B (Excel lsquoDesign Toolrsquo) which is Roadside Design Guide Eq 5-3
2 Meet minimum barrier setback per FDM Table 21542 (5 feet for general guardrail)
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Final Case StudyAssumptionsbull Design Speed
50 mph
bull Piers designed to withstand 600 kip impact load per FDM215454(Pier Protection Barrier notRequired)
Guardrail Index 536-001
Approach Terminals Any issue hereAnswerhellip YES
First issuehellipPiers NOT shielded
ldquoLength of Needrdquo NOT met per SPI Part B (Excel Design Tool)
Guardrail Index 536-001
Approach Terminals Any issue hereAnswerhellip YES
First issuehellipPiers NOT shielded
ldquoLength of Needrdquo NOT met per SPI Part B (Excel Design Tool)
Piers are behind the ldquogatingrdquo(break-away) portion of Approach Terminal
Guardrail Index 536-001
Approach Terminals Any issue hereYES
Second issuehellipFlared Terminal usage on hold per RDB18-02
Regardlesshellip ldquoTaper Raterdquo too steep here at Approach Terminal (about 13 shown)
Guardrail requires 115 Max Taper Rate per SPI Part I
Guardrail Index 536-001
Approach Terminals Any issue hereAnswerhellip YES
Third issuehellipldquoBarrier Setbackrdquo requirement likely not satisfied
per FDM Table 21542(5 feet or greater)hellip
Guardrail Index 536-001
Approach Terminals Any issue hereYES
Fourth issuehellipldquoTrailing Anchoragerdquo not properly extended downstream of hazard
25-foot Requirement SPI C1 amp lsquoLONrsquo Design Tool (Excel)hellip
Answerhellip
Guardrail Index 536-001
Approach Terminals Any issue hereYES
Fourth issuehellipldquoTrailing Anchoragerdquo not properly extended downstream of hazard
25-foot Requirement SPI C1 amp lsquoLONrsquo Design Tool (Excel)hellip
AnswerhellipFrom lsquoLength of Needrsquo Excel Sheethellip
Guardrail Index 536-001 Crash Cushion Index 544-001
Approach Terminals Solution 1lsquoCrash Cushionrsquobull ldquoSystem Widthrdquo ndash
lsquoWidersquo per SPI 544-001 Part C
bull ldquoLength Restrictionrdquo - per SPI 544-001 Part F
bull Contact Central Office for guidance
Note Define Crash Cushion with provided CADD cellhellipldquoSummary of Permanent Crash Cushions Tablerdquo
Guardrail Index 536-001 Crash Cushion Index 544-001
Approach Terminals Solution 1lsquoCrash Cushionrsquobull Guardrail ldquoreduced
post spacingrdquo to reduce required hazard setback per FDM Table 21542
bull Again contact Central Office for guidance for such limited space
Concrete Barrier Index 521-001 Crash Cushion 544-001
Approach Terminals Solution 2lsquoConcrete Barrierrsquo amp lsquoCrash Cushionrsquo
bull Requires project-specific design
bull Contact Central Office for guidance for such limited space
Questions
Richard Stepp PEStandard Plans Engineer
Central Office Roadway Design(850) 414-4313
richardsteppdotstateflus
Standard Plans Single-Slope Barriers
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Solution 2
1 Extend Guardrail to meet Length of Need per SPI Part B (Excel lsquoDesign Toolrsquo) which is Roadside Design Guide Eq 5-3
2 Meet minimum barrier setback per FDM Table 21542 (5 feet for general guardrail)
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Final Case StudyAssumptionsbull Design Speed
50 mph
bull Piers designed to withstand 600 kip impact load per FDM215454(Pier Protection Barrier notRequired)
Guardrail Index 536-001
Approach Terminals Any issue hereAnswerhellip YES
First issuehellipPiers NOT shielded
ldquoLength of Needrdquo NOT met per SPI Part B (Excel Design Tool)
Guardrail Index 536-001
Approach Terminals Any issue hereAnswerhellip YES
First issuehellipPiers NOT shielded
ldquoLength of Needrdquo NOT met per SPI Part B (Excel Design Tool)
Piers are behind the ldquogatingrdquo(break-away) portion of Approach Terminal
Guardrail Index 536-001
Approach Terminals Any issue hereYES
Second issuehellipFlared Terminal usage on hold per RDB18-02
Regardlesshellip ldquoTaper Raterdquo too steep here at Approach Terminal (about 13 shown)
Guardrail requires 115 Max Taper Rate per SPI Part I
Guardrail Index 536-001
Approach Terminals Any issue hereAnswerhellip YES
Third issuehellipldquoBarrier Setbackrdquo requirement likely not satisfied
per FDM Table 21542(5 feet or greater)hellip
Guardrail Index 536-001
Approach Terminals Any issue hereYES
Fourth issuehellipldquoTrailing Anchoragerdquo not properly extended downstream of hazard
25-foot Requirement SPI C1 amp lsquoLONrsquo Design Tool (Excel)hellip
Answerhellip
Guardrail Index 536-001
Approach Terminals Any issue hereYES
Fourth issuehellipldquoTrailing Anchoragerdquo not properly extended downstream of hazard
25-foot Requirement SPI C1 amp lsquoLONrsquo Design Tool (Excel)hellip
AnswerhellipFrom lsquoLength of Needrsquo Excel Sheethellip
Guardrail Index 536-001 Crash Cushion Index 544-001
Approach Terminals Solution 1lsquoCrash Cushionrsquobull ldquoSystem Widthrdquo ndash
lsquoWidersquo per SPI 544-001 Part C
bull ldquoLength Restrictionrdquo - per SPI 544-001 Part F
bull Contact Central Office for guidance
Note Define Crash Cushion with provided CADD cellhellipldquoSummary of Permanent Crash Cushions Tablerdquo
Guardrail Index 536-001 Crash Cushion Index 544-001
Approach Terminals Solution 1lsquoCrash Cushionrsquobull Guardrail ldquoreduced
post spacingrdquo to reduce required hazard setback per FDM Table 21542
bull Again contact Central Office for guidance for such limited space
Concrete Barrier Index 521-001 Crash Cushion 544-001
Approach Terminals Solution 2lsquoConcrete Barrierrsquo amp lsquoCrash Cushionrsquo
bull Requires project-specific design
bull Contact Central Office for guidance for such limited space
Questions
Richard Stepp PEStandard Plans Engineer
Central Office Roadway Design(850) 414-4313
richardsteppdotstateflus
Standard Plans Single-Slope Barriers
Guardrail Index 536-001 Sheets 7-8
Approach Terminals Final Case StudyAssumptionsbull Design Speed
50 mph
bull Piers designed to withstand 600 kip impact load per FDM215454(Pier Protection Barrier notRequired)
Guardrail Index 536-001
Approach Terminals Any issue hereAnswerhellip YES
First issuehellipPiers NOT shielded
ldquoLength of Needrdquo NOT met per SPI Part B (Excel Design Tool)
Guardrail Index 536-001
Approach Terminals Any issue hereAnswerhellip YES
First issuehellipPiers NOT shielded
ldquoLength of Needrdquo NOT met per SPI Part B (Excel Design Tool)
Piers are behind the ldquogatingrdquo(break-away) portion of Approach Terminal
Guardrail Index 536-001
Approach Terminals Any issue hereYES
Second issuehellipFlared Terminal usage on hold per RDB18-02
Regardlesshellip ldquoTaper Raterdquo too steep here at Approach Terminal (about 13 shown)
Guardrail requires 115 Max Taper Rate per SPI Part I
Guardrail Index 536-001
Approach Terminals Any issue hereAnswerhellip YES
Third issuehellipldquoBarrier Setbackrdquo requirement likely not satisfied
per FDM Table 21542(5 feet or greater)hellip
Guardrail Index 536-001
Approach Terminals Any issue hereYES
Fourth issuehellipldquoTrailing Anchoragerdquo not properly extended downstream of hazard
25-foot Requirement SPI C1 amp lsquoLONrsquo Design Tool (Excel)hellip
Answerhellip
Guardrail Index 536-001
Approach Terminals Any issue hereYES
Fourth issuehellipldquoTrailing Anchoragerdquo not properly extended downstream of hazard
25-foot Requirement SPI C1 amp lsquoLONrsquo Design Tool (Excel)hellip
AnswerhellipFrom lsquoLength of Needrsquo Excel Sheethellip
Guardrail Index 536-001 Crash Cushion Index 544-001
Approach Terminals Solution 1lsquoCrash Cushionrsquobull ldquoSystem Widthrdquo ndash
lsquoWidersquo per SPI 544-001 Part C
bull ldquoLength Restrictionrdquo - per SPI 544-001 Part F
bull Contact Central Office for guidance
Note Define Crash Cushion with provided CADD cellhellipldquoSummary of Permanent Crash Cushions Tablerdquo
Guardrail Index 536-001 Crash Cushion Index 544-001
Approach Terminals Solution 1lsquoCrash Cushionrsquobull Guardrail ldquoreduced
post spacingrdquo to reduce required hazard setback per FDM Table 21542
bull Again contact Central Office for guidance for such limited space
Concrete Barrier Index 521-001 Crash Cushion 544-001
Approach Terminals Solution 2lsquoConcrete Barrierrsquo amp lsquoCrash Cushionrsquo
bull Requires project-specific design
bull Contact Central Office for guidance for such limited space
Questions
Richard Stepp PEStandard Plans Engineer
Central Office Roadway Design(850) 414-4313
richardsteppdotstateflus
Standard Plans Single-Slope Barriers
Guardrail Index 536-001
Approach Terminals Any issue hereAnswerhellip YES
First issuehellipPiers NOT shielded
ldquoLength of Needrdquo NOT met per SPI Part B (Excel Design Tool)
Guardrail Index 536-001
Approach Terminals Any issue hereAnswerhellip YES
First issuehellipPiers NOT shielded
ldquoLength of Needrdquo NOT met per SPI Part B (Excel Design Tool)
Piers are behind the ldquogatingrdquo(break-away) portion of Approach Terminal
Guardrail Index 536-001
Approach Terminals Any issue hereYES
Second issuehellipFlared Terminal usage on hold per RDB18-02
Regardlesshellip ldquoTaper Raterdquo too steep here at Approach Terminal (about 13 shown)
Guardrail requires 115 Max Taper Rate per SPI Part I
Guardrail Index 536-001
Approach Terminals Any issue hereAnswerhellip YES
Third issuehellipldquoBarrier Setbackrdquo requirement likely not satisfied
per FDM Table 21542(5 feet or greater)hellip
Guardrail Index 536-001
Approach Terminals Any issue hereYES
Fourth issuehellipldquoTrailing Anchoragerdquo not properly extended downstream of hazard
25-foot Requirement SPI C1 amp lsquoLONrsquo Design Tool (Excel)hellip
Answerhellip
Guardrail Index 536-001
Approach Terminals Any issue hereYES
Fourth issuehellipldquoTrailing Anchoragerdquo not properly extended downstream of hazard
25-foot Requirement SPI C1 amp lsquoLONrsquo Design Tool (Excel)hellip
AnswerhellipFrom lsquoLength of Needrsquo Excel Sheethellip
Guardrail Index 536-001 Crash Cushion Index 544-001
Approach Terminals Solution 1lsquoCrash Cushionrsquobull ldquoSystem Widthrdquo ndash
lsquoWidersquo per SPI 544-001 Part C
bull ldquoLength Restrictionrdquo - per SPI 544-001 Part F
bull Contact Central Office for guidance
Note Define Crash Cushion with provided CADD cellhellipldquoSummary of Permanent Crash Cushions Tablerdquo
Guardrail Index 536-001 Crash Cushion Index 544-001
Approach Terminals Solution 1lsquoCrash Cushionrsquobull Guardrail ldquoreduced
post spacingrdquo to reduce required hazard setback per FDM Table 21542
bull Again contact Central Office for guidance for such limited space
Concrete Barrier Index 521-001 Crash Cushion 544-001
Approach Terminals Solution 2lsquoConcrete Barrierrsquo amp lsquoCrash Cushionrsquo
bull Requires project-specific design
bull Contact Central Office for guidance for such limited space
Questions
Richard Stepp PEStandard Plans Engineer
Central Office Roadway Design(850) 414-4313
richardsteppdotstateflus
Standard Plans Single-Slope Barriers
Guardrail Index 536-001
Approach Terminals Any issue hereAnswerhellip YES
First issuehellipPiers NOT shielded
ldquoLength of Needrdquo NOT met per SPI Part B (Excel Design Tool)
Piers are behind the ldquogatingrdquo(break-away) portion of Approach Terminal
Guardrail Index 536-001
Approach Terminals Any issue hereYES
Second issuehellipFlared Terminal usage on hold per RDB18-02
Regardlesshellip ldquoTaper Raterdquo too steep here at Approach Terminal (about 13 shown)
Guardrail requires 115 Max Taper Rate per SPI Part I
Guardrail Index 536-001
Approach Terminals Any issue hereAnswerhellip YES
Third issuehellipldquoBarrier Setbackrdquo requirement likely not satisfied
per FDM Table 21542(5 feet or greater)hellip
Guardrail Index 536-001
Approach Terminals Any issue hereYES
Fourth issuehellipldquoTrailing Anchoragerdquo not properly extended downstream of hazard
25-foot Requirement SPI C1 amp lsquoLONrsquo Design Tool (Excel)hellip
Answerhellip
Guardrail Index 536-001
Approach Terminals Any issue hereYES
Fourth issuehellipldquoTrailing Anchoragerdquo not properly extended downstream of hazard
25-foot Requirement SPI C1 amp lsquoLONrsquo Design Tool (Excel)hellip
AnswerhellipFrom lsquoLength of Needrsquo Excel Sheethellip
Guardrail Index 536-001 Crash Cushion Index 544-001
Approach Terminals Solution 1lsquoCrash Cushionrsquobull ldquoSystem Widthrdquo ndash
lsquoWidersquo per SPI 544-001 Part C
bull ldquoLength Restrictionrdquo - per SPI 544-001 Part F
bull Contact Central Office for guidance
Note Define Crash Cushion with provided CADD cellhellipldquoSummary of Permanent Crash Cushions Tablerdquo
Guardrail Index 536-001 Crash Cushion Index 544-001
Approach Terminals Solution 1lsquoCrash Cushionrsquobull Guardrail ldquoreduced
post spacingrdquo to reduce required hazard setback per FDM Table 21542
bull Again contact Central Office for guidance for such limited space
Concrete Barrier Index 521-001 Crash Cushion 544-001
Approach Terminals Solution 2lsquoConcrete Barrierrsquo amp lsquoCrash Cushionrsquo
bull Requires project-specific design
bull Contact Central Office for guidance for such limited space
Questions
Richard Stepp PEStandard Plans Engineer
Central Office Roadway Design(850) 414-4313
richardsteppdotstateflus
Standard Plans Single-Slope Barriers
Guardrail Index 536-001
Approach Terminals Any issue hereYES
Second issuehellipFlared Terminal usage on hold per RDB18-02
Regardlesshellip ldquoTaper Raterdquo too steep here at Approach Terminal (about 13 shown)
Guardrail requires 115 Max Taper Rate per SPI Part I
Guardrail Index 536-001
Approach Terminals Any issue hereAnswerhellip YES
Third issuehellipldquoBarrier Setbackrdquo requirement likely not satisfied
per FDM Table 21542(5 feet or greater)hellip
Guardrail Index 536-001
Approach Terminals Any issue hereYES
Fourth issuehellipldquoTrailing Anchoragerdquo not properly extended downstream of hazard
25-foot Requirement SPI C1 amp lsquoLONrsquo Design Tool (Excel)hellip
Answerhellip
Guardrail Index 536-001
Approach Terminals Any issue hereYES
Fourth issuehellipldquoTrailing Anchoragerdquo not properly extended downstream of hazard
25-foot Requirement SPI C1 amp lsquoLONrsquo Design Tool (Excel)hellip
AnswerhellipFrom lsquoLength of Needrsquo Excel Sheethellip
Guardrail Index 536-001 Crash Cushion Index 544-001
Approach Terminals Solution 1lsquoCrash Cushionrsquobull ldquoSystem Widthrdquo ndash
lsquoWidersquo per SPI 544-001 Part C
bull ldquoLength Restrictionrdquo - per SPI 544-001 Part F
bull Contact Central Office for guidance
Note Define Crash Cushion with provided CADD cellhellipldquoSummary of Permanent Crash Cushions Tablerdquo
Guardrail Index 536-001 Crash Cushion Index 544-001
Approach Terminals Solution 1lsquoCrash Cushionrsquobull Guardrail ldquoreduced
post spacingrdquo to reduce required hazard setback per FDM Table 21542
bull Again contact Central Office for guidance for such limited space
Concrete Barrier Index 521-001 Crash Cushion 544-001
Approach Terminals Solution 2lsquoConcrete Barrierrsquo amp lsquoCrash Cushionrsquo
bull Requires project-specific design
bull Contact Central Office for guidance for such limited space
Questions
Richard Stepp PEStandard Plans Engineer
Central Office Roadway Design(850) 414-4313
richardsteppdotstateflus
Standard Plans Single-Slope Barriers
Guardrail Index 536-001
Approach Terminals Any issue hereAnswerhellip YES
Third issuehellipldquoBarrier Setbackrdquo requirement likely not satisfied
per FDM Table 21542(5 feet or greater)hellip
Guardrail Index 536-001
Approach Terminals Any issue hereYES
Fourth issuehellipldquoTrailing Anchoragerdquo not properly extended downstream of hazard
25-foot Requirement SPI C1 amp lsquoLONrsquo Design Tool (Excel)hellip
Answerhellip
Guardrail Index 536-001
Approach Terminals Any issue hereYES
Fourth issuehellipldquoTrailing Anchoragerdquo not properly extended downstream of hazard
25-foot Requirement SPI C1 amp lsquoLONrsquo Design Tool (Excel)hellip
AnswerhellipFrom lsquoLength of Needrsquo Excel Sheethellip
Guardrail Index 536-001 Crash Cushion Index 544-001
Approach Terminals Solution 1lsquoCrash Cushionrsquobull ldquoSystem Widthrdquo ndash
lsquoWidersquo per SPI 544-001 Part C
bull ldquoLength Restrictionrdquo - per SPI 544-001 Part F
bull Contact Central Office for guidance
Note Define Crash Cushion with provided CADD cellhellipldquoSummary of Permanent Crash Cushions Tablerdquo
Guardrail Index 536-001 Crash Cushion Index 544-001
Approach Terminals Solution 1lsquoCrash Cushionrsquobull Guardrail ldquoreduced
post spacingrdquo to reduce required hazard setback per FDM Table 21542
bull Again contact Central Office for guidance for such limited space
Concrete Barrier Index 521-001 Crash Cushion 544-001
Approach Terminals Solution 2lsquoConcrete Barrierrsquo amp lsquoCrash Cushionrsquo
bull Requires project-specific design
bull Contact Central Office for guidance for such limited space
Questions
Richard Stepp PEStandard Plans Engineer
Central Office Roadway Design(850) 414-4313
richardsteppdotstateflus
Standard Plans Single-Slope Barriers
Guardrail Index 536-001
Approach Terminals Any issue hereYES
Fourth issuehellipldquoTrailing Anchoragerdquo not properly extended downstream of hazard
25-foot Requirement SPI C1 amp lsquoLONrsquo Design Tool (Excel)hellip
Answerhellip
Guardrail Index 536-001
Approach Terminals Any issue hereYES
Fourth issuehellipldquoTrailing Anchoragerdquo not properly extended downstream of hazard
25-foot Requirement SPI C1 amp lsquoLONrsquo Design Tool (Excel)hellip
AnswerhellipFrom lsquoLength of Needrsquo Excel Sheethellip
Guardrail Index 536-001 Crash Cushion Index 544-001
Approach Terminals Solution 1lsquoCrash Cushionrsquobull ldquoSystem Widthrdquo ndash
lsquoWidersquo per SPI 544-001 Part C
bull ldquoLength Restrictionrdquo - per SPI 544-001 Part F
bull Contact Central Office for guidance
Note Define Crash Cushion with provided CADD cellhellipldquoSummary of Permanent Crash Cushions Tablerdquo
Guardrail Index 536-001 Crash Cushion Index 544-001
Approach Terminals Solution 1lsquoCrash Cushionrsquobull Guardrail ldquoreduced
post spacingrdquo to reduce required hazard setback per FDM Table 21542
bull Again contact Central Office for guidance for such limited space
Concrete Barrier Index 521-001 Crash Cushion 544-001
Approach Terminals Solution 2lsquoConcrete Barrierrsquo amp lsquoCrash Cushionrsquo
bull Requires project-specific design
bull Contact Central Office for guidance for such limited space
Questions
Richard Stepp PEStandard Plans Engineer
Central Office Roadway Design(850) 414-4313
richardsteppdotstateflus
Standard Plans Single-Slope Barriers
Guardrail Index 536-001
Approach Terminals Any issue hereYES
Fourth issuehellipldquoTrailing Anchoragerdquo not properly extended downstream of hazard
25-foot Requirement SPI C1 amp lsquoLONrsquo Design Tool (Excel)hellip
AnswerhellipFrom lsquoLength of Needrsquo Excel Sheethellip
Guardrail Index 536-001 Crash Cushion Index 544-001
Approach Terminals Solution 1lsquoCrash Cushionrsquobull ldquoSystem Widthrdquo ndash
lsquoWidersquo per SPI 544-001 Part C
bull ldquoLength Restrictionrdquo - per SPI 544-001 Part F
bull Contact Central Office for guidance
Note Define Crash Cushion with provided CADD cellhellipldquoSummary of Permanent Crash Cushions Tablerdquo
Guardrail Index 536-001 Crash Cushion Index 544-001
Approach Terminals Solution 1lsquoCrash Cushionrsquobull Guardrail ldquoreduced
post spacingrdquo to reduce required hazard setback per FDM Table 21542
bull Again contact Central Office for guidance for such limited space
Concrete Barrier Index 521-001 Crash Cushion 544-001
Approach Terminals Solution 2lsquoConcrete Barrierrsquo amp lsquoCrash Cushionrsquo
bull Requires project-specific design
bull Contact Central Office for guidance for such limited space
Questions
Richard Stepp PEStandard Plans Engineer
Central Office Roadway Design(850) 414-4313
richardsteppdotstateflus
Standard Plans Single-Slope Barriers
Guardrail Index 536-001 Crash Cushion Index 544-001
Approach Terminals Solution 1lsquoCrash Cushionrsquobull ldquoSystem Widthrdquo ndash
lsquoWidersquo per SPI 544-001 Part C
bull ldquoLength Restrictionrdquo - per SPI 544-001 Part F
bull Contact Central Office for guidance
Note Define Crash Cushion with provided CADD cellhellipldquoSummary of Permanent Crash Cushions Tablerdquo
Guardrail Index 536-001 Crash Cushion Index 544-001
Approach Terminals Solution 1lsquoCrash Cushionrsquobull Guardrail ldquoreduced
post spacingrdquo to reduce required hazard setback per FDM Table 21542
bull Again contact Central Office for guidance for such limited space
Concrete Barrier Index 521-001 Crash Cushion 544-001
Approach Terminals Solution 2lsquoConcrete Barrierrsquo amp lsquoCrash Cushionrsquo
bull Requires project-specific design
bull Contact Central Office for guidance for such limited space
Questions
Richard Stepp PEStandard Plans Engineer
Central Office Roadway Design(850) 414-4313
richardsteppdotstateflus
Standard Plans Single-Slope Barriers
Guardrail Index 536-001 Crash Cushion Index 544-001
Approach Terminals Solution 1lsquoCrash Cushionrsquobull Guardrail ldquoreduced
post spacingrdquo to reduce required hazard setback per FDM Table 21542
bull Again contact Central Office for guidance for such limited space
Concrete Barrier Index 521-001 Crash Cushion 544-001
Approach Terminals Solution 2lsquoConcrete Barrierrsquo amp lsquoCrash Cushionrsquo
bull Requires project-specific design
bull Contact Central Office for guidance for such limited space
Questions
Richard Stepp PEStandard Plans Engineer
Central Office Roadway Design(850) 414-4313
richardsteppdotstateflus
Standard Plans Single-Slope Barriers
Concrete Barrier Index 521-001 Crash Cushion 544-001
Approach Terminals Solution 2lsquoConcrete Barrierrsquo amp lsquoCrash Cushionrsquo
bull Requires project-specific design
bull Contact Central Office for guidance for such limited space
Questions
Richard Stepp PEStandard Plans Engineer
Central Office Roadway Design(850) 414-4313
richardsteppdotstateflus
Standard Plans Single-Slope Barriers
Questions
Richard Stepp PEStandard Plans Engineer
Central Office Roadway Design(850) 414-4313
richardsteppdotstateflus
Standard Plans Single-Slope Barriers