blueprint for one of the nation’s largest scm maintenance
TRANSCRIPT
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Blueprint for One of the Nation’s Largest SCM Maintenance Programs PA Department of Transportation
Agenda
2
PennDOT Facts
• Nation’s fifth largest state maintained roadway network with 88,000+ lane miles (12’ equiv.)
• 25,000+ bridges • 120,000+ storm drain pipes • 450 stockpiles • Estimated 3,000+ SCMs*
*Includes vegetated swales
– Central Office develops overall policies – District offices provide oversight and ensure
employees are trained and have resources – County maintenance executes operations
Central Office
Regulatory Drivers
• 2010 changes to 25 Pa Code §102 – 102.8(m) – PCSM long-term operation and
maintenance requirements – All permits issued after dates below must contain a
PCSM plan w/ O&M instructions • Individual Permits after 11/2010
• General Permits (PAG-02) after 12/2012
6
Regulatory Drivers
• PennDOT’s Individual Statewide MS4 Permit – Applies to urbanized areas – “Ensure that NPDES PCSM BMPs are implemented,
operated, and maintained consistent with applicable Chapter 102 regulations.”
7
Current Practices
• 1 in 4 DOTs have a complete SCM inventory and inspection/maintenance plan
• For most DOTs, maintenance is performed on an as-needed basis for common indicators
• Typical practices: – removing excess sediment – revegetating ditches and
embankments – trash removal – emergency response when
impaired conveyance threatens roadway safety
8
What about functionality and performance?
• Requires knowledge of the SCM’s purpose and various functional elements
• Training is essential
Where are all of the SCMs (and what are they)?
• Information rich, data poor • SCM data mostly only existed on PCSM plans • Data not centralized
10
SCM Inventory
• Phase 1 – Desktop Review – Began with projects permitting circa 2006 and later – 500+ projects w/NPDES permits reviewed or
currently under review for SCMs
11
• Phase 2 – Field Reconnaissance – Additional plan/data mining (add vegetated swales) – GPS locating and information gathering
12
• Data collected for each SCM: – SCM type – Lat./Long. – District/County/Municipality – SR/Segment/Offset – Receiving water data – Urbanized/non-urbanized – NPDES permit data – Year constructed – ECMS number – Surface area, DA treated, IA treated – Access type/visibility
13
SCM Inventory
• 1,650 SCMs have been inventoried to date – Does not include vegetated swales because
substantial additional effort – Does not include other certain types of non-
structural or restoration BMPs
• Estimated 3,000 existing SCMs in total – Includes vegetated swales and SCMs that have not
yet been geo-located
SCM Inventory
SCM Inventory
0
100
200
300
400
500
600
1 2 3 4 5 6 8 9 10 11 12
SCM Totals by District and Location
SCM Totals- Urban Areas SCM Totals- Non-Urban Areas
18
Wet Basin
Basin - Other
accordance with each PCSM Plan • Standardized practices needed
– inspections – maintenance – documentation
• Adding roughly 170+ SCMs per year to the inventory*
*Not including vegetated swales and restoration BMPs
22
protocol – Regular maintenance cycles – Consistent documentation – Inventory procedure – Training!
• Long-term Plan – Improve efficiency – Expand data tracking – Analyze data to improve
practices
23
• Condition assessment – Establishes a baseline condition and uncovers any
issues that may result in reduced effectiveness or failure of the SCM
• Visual screening – Detects existing/potential problems and their
source to determine if corrective maintenance is needed and/or if further investigation is required
24
• Routine preventative maintenance
– Needs to be performed on regular cycles and can be scheduled far in advance of the work.
• Corrective maintenance – Needs are uncovered
through visual screenings, condition assessments, and preventative maintenance activities.
25
Technology Implementation
• Maintenance IQ – Visualization of database and links to documents – Accessible to all w/CWOPA account – No GIS licensing – Maintenance personnel using for other applications
26
data upload – Electronic payroll entry
27
Questions?
28
Blueprint for One of the Nation’s Largest SCM Maintenance Programs
Agenda
Blueprint for One of the Nation’s Largest SCM Maintenance Programs PA Department of Transportation
Agenda
2
PennDOT Facts
• Nation’s fifth largest state maintained roadway network with 88,000+ lane miles (12’ equiv.)
• 25,000+ bridges • 120,000+ storm drain pipes • 450 stockpiles • Estimated 3,000+ SCMs*
*Includes vegetated swales
– Central Office develops overall policies – District offices provide oversight and ensure
employees are trained and have resources – County maintenance executes operations
Central Office
Regulatory Drivers
• 2010 changes to 25 Pa Code §102 – 102.8(m) – PCSM long-term operation and
maintenance requirements – All permits issued after dates below must contain a
PCSM plan w/ O&M instructions • Individual Permits after 11/2010
• General Permits (PAG-02) after 12/2012
6
Regulatory Drivers
• PennDOT’s Individual Statewide MS4 Permit – Applies to urbanized areas – “Ensure that NPDES PCSM BMPs are implemented,
operated, and maintained consistent with applicable Chapter 102 regulations.”
7
Current Practices
• 1 in 4 DOTs have a complete SCM inventory and inspection/maintenance plan
• For most DOTs, maintenance is performed on an as-needed basis for common indicators
• Typical practices: – removing excess sediment – revegetating ditches and
embankments – trash removal – emergency response when
impaired conveyance threatens roadway safety
8
What about functionality and performance?
• Requires knowledge of the SCM’s purpose and various functional elements
• Training is essential
Where are all of the SCMs (and what are they)?
• Information rich, data poor • SCM data mostly only existed on PCSM plans • Data not centralized
10
SCM Inventory
• Phase 1 – Desktop Review – Began with projects permitting circa 2006 and later – 500+ projects w/NPDES permits reviewed or
currently under review for SCMs
11
• Phase 2 – Field Reconnaissance – Additional plan/data mining (add vegetated swales) – GPS locating and information gathering
12
• Data collected for each SCM: – SCM type – Lat./Long. – District/County/Municipality – SR/Segment/Offset – Receiving water data – Urbanized/non-urbanized – NPDES permit data – Year constructed – ECMS number – Surface area, DA treated, IA treated – Access type/visibility
13
SCM Inventory
• 1,650 SCMs have been inventoried to date – Does not include vegetated swales because
substantial additional effort – Does not include other certain types of non-
structural or restoration BMPs
• Estimated 3,000 existing SCMs in total – Includes vegetated swales and SCMs that have not
yet been geo-located
SCM Inventory
SCM Inventory
0
100
200
300
400
500
600
1 2 3 4 5 6 8 9 10 11 12
SCM Totals by District and Location
SCM Totals- Urban Areas SCM Totals- Non-Urban Areas
18
Wet Basin
Basin - Other
accordance with each PCSM Plan • Standardized practices needed
– inspections – maintenance – documentation
• Adding roughly 170+ SCMs per year to the inventory*
*Not including vegetated swales and restoration BMPs
22
protocol – Regular maintenance cycles – Consistent documentation – Inventory procedure – Training!
• Long-term Plan – Improve efficiency – Expand data tracking – Analyze data to improve
practices
23
• Condition assessment – Establishes a baseline condition and uncovers any
issues that may result in reduced effectiveness or failure of the SCM
• Visual screening – Detects existing/potential problems and their
source to determine if corrective maintenance is needed and/or if further investigation is required
24
• Routine preventative maintenance
– Needs to be performed on regular cycles and can be scheduled far in advance of the work.
• Corrective maintenance – Needs are uncovered
through visual screenings, condition assessments, and preventative maintenance activities.
25
Technology Implementation
• Maintenance IQ – Visualization of database and links to documents – Accessible to all w/CWOPA account – No GIS licensing – Maintenance personnel using for other applications
26
data upload – Electronic payroll entry
27
Questions?
28
Blueprint for One of the Nation’s Largest SCM Maintenance Programs
Agenda