table of contents – bridge layout chapter 8bridge layout introduction part 2 date: 31oct2018 sheet...

BRIDGE LAYOUT TABLE OF CONTENTS – CHAPTER 8

PART 2 DATE: 30Apr2019 SHEET 1 of 2

FILE NO. 08.TOC-1

TABLE OF CONTENTS – BRIDGE LAYOUT

CHAPTER 8

FILE NO. TITLE DATE

TABLE OF CONTENTS AND INTRODUCTION 08.TOC-1 Table of Contents ................................................................................... 30Apr2019 08.TOC-2 Table of Contents ................................................................................... 31Oct2018 08.00-1 Introduction ............................................................................................ 31Oct2018

CURVED BRIDGE LAYOUT 08.01-1 Layout on Chords End-to-End Spans ................................................... 31Oct2018 08.01-2 Layout on Common Chord ..................................................................... 31Oct2018 08.01-3 Layout on Tangent and Curve ............................................................... 31Oct2018 08.01-4 Layout on Compound Curve .................................................................. 31Oct2018 08.01-5 Checklist for Curved Bridge Layout ....................................................... 31Oct2018 08.01-6 Checklist for Curved Bridge Layout ....................................................... 31Oct2018

* 08.01-7 Sample Sheet for Layout on Chords ...................................................... 31Oct2018 * 08.01-8 Sample Sheet for Layout on Common Chord ........................................ 31Oct2018 * 08.01-9 Sample Sheet for Layout on Tangent and Curve .................................. 31Oct2018 * 08.01-10 Sample Sheet for Layout on Compound Curve ..................................... 31Oct2018

SUBSTRUCTURE LAYOUT 08.02-1 Checklist for Substructure Layout ......................................................... 31Oct2018 08.02-2 Checklist for Substructure Layout .......................................................... 31Oct2018

* 08.02-3 Sample Sheet for Full Integral Abutments ............................................. 30Apr2019 * 08.02-4 Sample Sheet for Semi-Integral Abutments .......................................... 30Apr2019 * 08.02-5 Sample Sheet for Deck Extensions ....................................................... 30Apr2019 * 08.02-6 Sample Sheet for Virginia Abutments .................................................... 31Oct2018 * 08.02-7 Sample Sheet for Temporary Railroad Shoring ..................................... 31Oct2018

SLOPE PROTECTION AND SCOUR COUNTERMEASURES 08.03-1 Concrete Slab Slope Protection ............................................................. 30Apr2019 08.03-2 Concrete Slab Slope Protection ............................................................. 30Apr2019 08.03-3 Concrete Slab Riprap ............................................................................. 30Apr2019 08.03-4 Concrete Slab Riprap ............................................................................. 30Apr2019 08.03-5 Articulated Concrete Block Revetment System ..................................... 30Apr2019 08.03-6 Articulated Concrete Block Revetment System ..................................... 30Apr2019 08.03-7 Riprap Selection Algorithm .................................................................... 30Apr2019 08.03-8 Riprap Slope Protection ......................................................................... 30Apr2019 08.03-9 Riprap Slope Protection ......................................................................... 30Apr2019 08.03-10 Riprap Scour Countermeasures ............................................................ 30Apr2019 08.03-11 Riprap Scour Countermeasures ............................................................ 30Apr2019 *Indicates 11 x 17 sheet; all others are 8½ x 11.

GEOMETRICS TABLE OF CONTENTS – CHAPTER 6

PART 2 DATE: 31Oct2018 SHEET 2 of 2

FILE NO. 08.TOC-2

TABLE OF CONTENTS – BRIDGE LAYOUT

CHAPTER 8

FILE NO. TITLE DATE

BRIDGE STAKEOUT 08.04-1 General Information ............................................................................... 31Oct2018 08.04-2 Checklist for Bridge Stakeout ................................................................. 31Oct2018

* 08.04-3 Sample Sheet for Bridge Stakeout......................................................... 31Oct2018

* Indicates 11 x 17 sheet; all others are 8½ x 11.

BRIDGE LAYOUT INTRODUCTION


FILE NO. 08.00-1

INTRODUCTION

It is the intent of this chapter to establish the practices and specific requirements of the Structure and Bridge Division for developing a bridge layout. A bridge layout encompasses geometric and substructure placement relative to the established baseline of construction. A bridge layout forms the base geometry for developing the substructure layout. Consequently, bridge and substructure layouts should share common features and parameters. The chapter also provides slope protection requirements and guidelines for different bridge crossings and limits of protection along wing walls. Different construction materials used for slope protection provide different levels of protection to the substructure and foundation. The limits of termination for slope protection for different substructure types and wingwall configurations have been identified in this chapter.

Additionally, information is provided in this chapter for bridge stakeout. The stakeout identifies specific survey points and markers along the bridge substructure necessary for the construction of the bridge. Checklists for developing the layout for curved bridge geometry, substructure, and bridge stakeout have been developed for this chapter, and are included with the respective sections discussed above. A typical project should generally have one sheet dedicated to the bridge layout and substructure layout.

NOTE: Due to various restrictions on placing files in this manual onto the Internet, portions of the drawings shown do not necessarily reflect the correct line weights, line types, fonts, arrowheads, etc. Wherever discrepancies occur, the written text shall take precedence over any of the drawn view.

BRIDGE LAYOUT CURVED BRIDGE LAYOUT

LAYOUT ON CHORDS END-TO-END SPANS


FILE NO. 08.01-1

LAYOUT ON CHORDS END-TO-END OF SPANS

Layo

ut o

n C

hord

s


LAYOUT ON COMMON CHORD


FILE NO. 08.01-2

LAYOUT ON COMMON CHORD

Layo

ut o

n C

omm

on C

hord

Note: Layout on common chord is to be used whenever the middle ordinate of the Construction Baseline or Centerline is equal to or less than one-fourth the width of the superstructure. Dimensions and elevations are to be referenced to the Construction Baseline or Centerline.


LAYOUT ON TANGENT AND CURVE


FILE NO. 08.01-3

LAYOUT ON TANGENT AND CURVE

Layo

ut o

n Ta

ngen

t and

Cur

ve


LAYOUT ON COMPOUND CURVE


FILE NO. 08.01-4

LAYOUT ON COMPOUND CURVE

Layo

ut o

n C

ompo

und

Cur

ve


CHECKLIST FOR CURVED BRIDGE LAYOUT


FILE NO. 08.01-5

CHECKLIST FOR CURVED BRIDGE LAYOUT: 1 Show title and scale.

2 For semi-integral abutments, conventional cantilever abutments with deck slab extension and

Virginia Abutments, label: Line thru center of bearings Abutment A or B Station of line thru center of bearings

3 For full integral abutments, label: Line thru center of piles

Abutment A or B Station of line thru center of piles

4 Dimension span length(s) measured along C / B of bridge and label span(s).

5 Label / of bridge. This designation shall match that shown on the roadway plans. Do not include the word “proposed”.

6 Provide bearing for tangent portions of / beyond Point of Curvature (PC) or Point of

Tangency (PT) (if applicable).

7 Label skew angles(s) (if applicable). For a 0° skew, show as 90° to / . Do not label as normal to / . At abutments, the skew angle shall be shown between bearings (or C piles for full integral abutments) and a chord or working line. At pier/bent, the skew angle shall be shown between chord(s) or/and working line(s) except for layout on Common Chord where the skew shall be shown between pier/bent and a chord or working line.

8 Label C pier(s)/bent(s) and show station(s).

9 Show North Arrow.

10 Label tie stations and delta angle of / of roadway/track under bridge (if applicable).

11 Show C / B radius.

12 Provide traffic direction for all roadways to a town or intersection of prominent roadways, e.g.,

To Route 150, To Town of Farmville, etc. Arrow and text shall be placed outside of the view area and in the direction of traffic flow.

13 Label / of the intersected roadway or railroad.

14 Label radial (if applicable).

15 Label PC, Point of Compound Curvature (PCC) , PT etc. and show station(s) (if applicable).

16 Label chord(s)/common chord(s) to Constr. and dimension length of chord(s).

17 Label existing railroad R/W (if applicable).

18 Label the alignment used to measure the span lengths if other than tangent.

L

L L

L L

L C

L C L B

L C L B

L C L B L B L C L C

L C

L B

L C L B

L B

L


CHECKLIST FOR CURVED BRIDGE LAYOUT


FILE NO. 08.01-6

CHECKLIST FOR CURVED BRIDGE LAYOUT: (cont’d)

19 Show applicable notes as required. Add appropriate sheet numbers(s). For instructions on completing the notes, see File No. 04.03.

20 For instructions on completing the title block, see File No. 04.02-1.

21 For instructions on completing the project block, see File No. 04.01.

22 For instructions on developing the CADD sheet number, see File Nos. 01.01-6 and 01.14-4.

23 For instructions on completing the block for sealing, signing, and dating, see File No. 01.16.

CURVED BRIDGE LAYOUT

DateDesigned: ...........

Drawn: ................

Checked: ............2018, Commonwealth of Virginiac

No. Description Date

STRUCTURE AND BRIDGE DIVISION

COMMONWEALTH OF VIRGINIA

DEPARTMENT OF TRANSPORTATION

Revisions

ROUTE

FEDERAL AID

PROJECT ROUTE PROJECT

STATE SHEET

NO.

VA.

STATE

STRUCTURAL ENGINEER

RICHMOND, VA

VDOT S&B DIVISION

o

o

o

10

13

L Rte. 17 (Bus.) NBLC

L Rte. 17 (Bus.) SBLC

To Rte.

690

12

Radial

8

12

a napS b napS

4 4

Rte. 17 SBL Constr. L

Measured alongB

2

11

2 .

et

R

oT

Chord

12

R = 1273.24'

11

Rte. 17 SBL Constr. LB

5

9

19

1


1 Scale: 1" = 20'

Plan

999

POC Sta. 303+04.91 Rte. 17 SBL Constr. LB

A

B


10

22

23

AB

10

21

20

999-99_003.d

gn

17 3

Oct. 2018

92 dna 51 .etR oT

= 48 -04'-57" Rt.

o

= 41 -50'-43" Rt.

o

13

LC

LC

C

8

7

7

7

2

of bearings

Line thru center

Sta. 305+33.00

Abutment B

2

of bearings

Line thru center

Tie stations:

SAMPLE SHEET FOR LAYOUT ON CHORDS


BRIDGE LAYOUT

2

Sta. 302+11.00

Abutment A

Radial

14

14

18

Sta. 303+72.00

Radial14

16

160'-11†"

16

160'-11†"

16

Chord16

PI Sta. 83+26.68 NBL Rte. 17 (Bus.)


FILE NO. 08.01-7

SHEET 7 of 10

DATE: 31Oct2018

PART 2

161'-0"161'-0"

12To Rte. 130

"9

3-'

14

-

84

"51-'33

-

8

31

"5-'54- 271

L Pier 1

for substructure.

This layout is to be used only for the purpose of locating supports

Notes:



Drawn: ................






Revisions

ROUTE

FEDERAL AID


STATE SHEET

NO.

VA.

STATE

STRUCTURAL ENGINEER

RICHMOND, VA

VDOT S&B DIVISION

19

1


1 Scale: 1" = 20'

Plan

999

22

23

21

20

999-99_003.d

gn

17 3

Oct. 2018

SAMPLE SHEET FOR LAYOUT ON COMMON CHORD


BRIDGE LAYOUT


A

B


= 48 -04'-57" Rt.

o

= 41 -50'-43" Rt.

o

LC

LC

9

o

o

10

13

L Rte. 17 (Bus.) NBLC

L Rte. 17 (Bus.) SBLC

To Rte.

690

12

Radial

8

12

"0-'551

a napS

"0-'551

b napS

4 4


Measured alongB

2

11

2 .

et

R

oT

12

R = 1273.24'

11

Rte. 17 SBL Constr. LB

5

A

B10

92 dna 51 .etR oT

13

C

8

7

7

2

of bearings

Line thru center

Sta. 305+27.00

Abutment B

2of bearings

Line thru center

2

Sta. 302+17.00

Abutment A

Radial

14

14

18

Sta. 303+72.00

Radial14

16

"ƒ

3-'

31

"2

1-'

40-

54

o

7

"2

1-'

40-

54

164'-‚" 145'-2†"

BConstr. L

Common chord to

"84-'55-

4

31



16 16

FILE NO. 08.01-8

SHEET 8 of 10

DATE: 31Oct2018

PART 2

L Pier 1

031 .etR

oT

12

10

for substructure.


Notes:

c

Date




ROUTE

FEDERAL AID


STATE SHEET

NO.

VA.

STATE

Plan

999Designed: ...........

Drawn: ................

Checked: ............


RevisionsSTRUCTURAL ENGINEER

RICHMOND, VA

VDOT S&B DIVISION

0058-965-107, B605164

1

90 90

N49 -57'-49"Eo

o

Scale: ˆ" = 1'-0" unless otherwise noted

LBRamp EN Constr.

Measured along

LC

o o

R = 720.00'

o

LBRamp EN Constr.

Existing RR R/W

of bearings

Line thru center

of bearings

Line thru center

Sta. 342+25.00

Pier 1 LC

Sta. 343+63.00

Pier 2

trackLC

C

o

LB

= 55 -09'-00" Lt.

L existing NPBL track

POT Sta. 341+49.64 Ramp EN Constr.


SAMPLE SHEET FOR LAYOUT ON TANGENT AND CURVE


BRIDGE LAYOUT

2

1


4 4

5

7 7

8

7

2

2

10

18

13

8

21

4

17

7

6

9

22

23

20

Chord

tangent

90 to local

2018, Commonwealth of Virginia

Sta. 345+13.67

Abutment B

Sta. 340+67.33

Abutment A

2

Oct. 2018

3

999-99_003.d

gn

"3

3

-'9

4-

38

o

157'-8"

Span a

138'-0"

Span b

19

14 Radial

16

15

1116

Span c

150'-8"

150'-4ƒ"

PC Sta. 343+63.00

FILE NO. 08.01-9

SHEET 9 of 10

DATE: 31Oct2018

PART 2

14

Radial

o90

"3

3-'

0

0- 48

7

for substructure.


Notes:

12

To Rte. 17

12

To Rte. 22



Drawn: ................






Revisions

ROUTE

FEDERAL AID


STATE SHEET

NO.

VA.

STATE

STRUCTURAL ENGINEER

RICHMOND, VA

VDOT S&B DIVISION

o

o

o

10

13

C

C

To Rte.

690

12

Radial

8

12

"0-'551

a napS

"0-'551

b napS

4 4

B

2

Chord

12

R = 1273.24'

11

B

5

9

1


1 Scale: 1" = 20'

Plan

999

LB

A

B

LB

10

AB

10

999-99_003.d

gn

3

Oct. 2018

= 48 -04'-57" Rt.

o

= 41 -50'-43" Rt.

o

13

LC

LC

C

8

7

7

7

2

of bearings

Line thru center

Sta. 305+27.00

Abutment B

2of bearings

Line thru center

Tie stations:

2

Sta. 302+17.00

Abutment A

RadialRadial

154'-10‡"154'-10‡"

Chord

7

"7

5-'

43-

14

o

"30-'52

-

83

1

11

2 .

et

R

oT

15

Sta. 303+72.00

PCC

1R = 1283.00'

2


Measured along


L Rte. 130 NBL

L Rte. 130 SBL

92 .etR oT51 .e

tR .oT

SAMPLE SHEET FOR LAYOUT ON COMPOUND CURVE


BRIDGE LAYOUT

"2

0-'

53-

84

"75-'42-

1

31

12

11

PI Sta. 83+26.68 NBL Rte. 130

POC Sta. 304+42.75 Rte. 18 SBL Constr.

PI Sta. 84+39.55 SBL Rte. 130

POC Sta. 303+04.91 Rte. 18 SBL Constr.

Sta. 303+72.00

18

18

23

22

20

21

1416

14

14 16

1616

FILE NO. 08.01-10

SHEET 10 of 10

DATE: 31Oct2018

PART 2

L Pier 1

19

for substructure.


Notes:

BRIDGE LAYOUT SUBSTRUCTURE LAYOUT

CHECKLIST FOR SUBSTRUCTURE LAYOUT


FILE NO. 08.02-1

CHECKLIST FOR SUBSTRUCTURE LAYOUT 1 Label plan view as Substructure Layout.

2 Substructure Layout shall be drawn to scale. 3 Label Abutment A or B and stationing. 4 For semi-integral abutments, conventional cantilever abutments with deck slab extension and

Virginia Abutments, label: Line thru center of bearings

For full integral abutments, label: Station of line thru center of piles

5 Label pier(s) / bent(s) and show stations.

6 Label / of bridge.

7 Label tie stations and delta angle of / of roadway / track under bridge (if applicable).

8 Label bearing of / (if applicable). 9 Label and show radius of curved alignment (if applicable).

10 Label chords, common chord or working line (if applicable). Dimension chord lengths.

11 Label skew angle(s) (if applicable). For 0 degree skew, show as 90 degrees to / . Curved

alignments require the skew angle to be shown between bearings (or piles for full integral abutments) and a radial line passing through the intersection of these lines with / of the bridge. For curved radial alignments, the skew angle shall be shown between bearings (or C piles for full integral abutments) and the chord(s) or working line(s).

12 Label and show PC / PT station of beginning / ending of curved alignment (if applicable).

13 Dimension span lengths and label spans.

14 Dimension from Abutment A reference line to Abutment B reference line along L / L.

15 Label the alignment used to measure the span lengths if other than tangent alignment. Label

radial.

16 Dimension plan of footings for abutments, wingwalls and piers. Dimension location of drilled shafts / piles for bent cap (if applicable). Provide tie dimension from intersection of / to common chord (if applicable). Label all angles that are not 90 degrees.

17 Label construction joint(s) in footing and dimension from / (if applicable).

C

L B

L C

L C L B

L B L C

L C L B

L B L C

L C L C L C L B

L C

L C

L C L B

B

L

BRIDGE LAYOUT SUBSTRUCTURE LAYOUT

CHECKLIST FOR SUBSTRUCTURE LAYOUT


FILE NO. 08.02-2

18 Label temporary shoring (if applicable). For temporary shoring requirements adjacent to railroads, see File No. 06.06-1. The shoring shall be designed and detailed during the design phase so that railroad approval can be obtained prior to advertisement. The designer shall coordinate with the VDOT Rail Section during the scoping phase to determine project specific requirements.

19 Label and dimension and station inside face of retaining wall(s) (if applicable)

20 Label C / B of roadway / track under bridge.

21 Label Railroad R/W (if applicable).

22 Label edge of berm, provide stations and elevations (if applicable).

23 Include select backfill and slope protection details and notes (if applicable).

24 Show location of borings.

25 Show North arrow above plan.

26 Include applicable notes as required. For instructions, see File No. 04.03.

27 For instructions on completing the title block, see File No. 04.02-1.

28 For instructions on completing the project block, see File No. 04.01.

29 For instructions on developing the CADD sheet number, see File Nos. 01.01-10 and 01.14-4.

30 For instructions on completing the block for sealing, signing, and dating, see File No. 01.16.

L L

SUBSTRUCTURE LAYOUT

A

A

A

A

SECTION A-A

c

0029-005-132, B64629

Date




ROUTE

FEDERAL AID


STATE SHEET

NO.

VA.

STATE

2'-6"

2'-6•" typ.

2'-6"

28

30

2

27

25

Sta. 115+26.00

Pier 1

Sta. 116+16.00

Pier 2


3

24

16

22

16

5 5

6

24

24

24

8

16

13 13 13

14

3

26

11

22

1

23

12'-6"

12'-6"

12'-6"

12'-6"

Scale: „" = 1'-0" unless noted otherwise

Plan

999

Not to scale

Abutment drainage not shown

structure excavation

To be paid for asSECTION THROUGH ABUTMENT23

SAMPLE SHEET FOR FULL INTEGRAL ABUTMENTS

SUBSTRUCTURE LAYOUT

BRIDGE LAYOUT

Designed: ...........

Drawn: ................

Checked: ............



RICHMOND, VA

VDOT S&B DIVISION

Limits of ro

ad

way

appro

ach fill

Subgrade

of the Specifications

as per Section 305.03(a)

Minimum density for top 6"

the VTM-10 test method.

accordance with Table I of

Minimum density 95% or in

Zone of select backfill material.

End of slab

Benched

16'-0"13'-6"

Varie

s

29

999-99_003.d

gn

3

24

16

LC

footing

Pier 2 and

LCLC

footing

Pier 1 and

LC

16

1616

Boring 4Boring 3

Boring 6

= Boring locations, for details see sheets 20 thru 22.

Boring 5

1'-3"1'-3"

1'-3"

1'-3"

11typ.

8"

1'-3"

o10

1'-3"

16

Apr. 2019

24

16

of piles

Line thru center

SELECT MATERIAL DETAIL

SLOPE PROTECTION AND

SUBSTRUCTURE LAYOUT

Sta. 114+56.00

Abutment A

Sta. 116+86.00

Abutment B

4

of piles

center

Line thru

CBR 30, at no additional cost to the Department.

21A or 21B may be substituted for Select Material Type 1, minimum

Sections 303 and 305 of the VDOT Road and Bridge Specifications.

Type 1, minimum CBR 30, and shall be compacted in accordance with

Material in the abutment select backfill zone shall be Select Material

and footings. For details not shown, see abutment and pier details.

This layout is to be used only for the purpose of locating fill slopes

Notes:

4of piles

center

Line thru

19'-

9"

24'-

3"

20'-

2‚

"

23'-

9ƒ

"

1'-3"

1'-6"

Normal to abutment

Boring 1

Boring 2

Edge of berm

Elev. 566.40

70'-0"

Span a

10'-

5†

"

14'-

6…

"

25'-0"

Rte. 29 NBL

230'-0"

90'-0"

Span b

N41 -52'-52"Eo

10'-

5†

"

14'-

6…

"

25'-0"

10 typ.o

Edge of berm

Elev. 569.50

70'-0"

Span c

2'-6•" typ.

1616

16

16

16

16

16

FILE NO. 08.02-3

SHEET 3 of 7

DATE: 30Apr2019

PART 2

25'-

0"

25'-

0"

5

5

LB Constr.

Scale: •" = 1'-0"

9"

crusher run aggregate

6" no. 25 or 26

by the Engineer

placed as directed

dry riprap to be

38" deep Class II

3'-2"min.

ground

Exist.

1

1

12

1

1

2

Geotextile bedding

material

1'-3"1'-3"

Edge of berm

of piles

Line thru center

footing

Top of abutment4'-0"

Sta. 114+61.33

Sta. 116+80.67

9" extension

min.

9" extension

3'-0"

28

30

2

27

Scale: ˆ" = 1'-0" unless noted otherwise

Plan

999FILE NO. 08.02-4

SHEET 4 of 7

DATE: 30Apr2019

PART 2

SAMPLE SHEET FOR SEMI-INTEGRAL ABUTMENTS

SUBSTRUCTURE LAYOUT

BRIDGE LAYOUT

SUBSTRUCTURE LAYOUT


29

999-99_003.d

gn

o

o

A A A AN08 -20'-50"E

= Boring locations, for details see sheets 24 thru 26.

SUBSTRUCTURE LAYOUT

C C

Sta. 23+53.00

L Pier 1 and L drilled shaftsC

Sta. 24+63.00

L Pier 2 and L drilled shaftsC

B-1

B-2

B-3

B-4

B-5

B-6

B-7

B-8

109'-1"

Span a

110'-0"

Span b

109'-1"

Span c

26'-

6"

26'-

6"

6'-

0"

20'-

6"

20'-

6"

6'-

0"

6'-

0"

6'-

0"

26'-

6"

26'-

6"

90 typ.

20'-

6"

17'-

0"

6'-0" typ.

12" typ.

6'-0" typ.

12" typ.

25'-

8"

25'-

8"

25'-

8"

25'-

8"

25

26

3

328'-2"

16

2222

11

5

13 13 13

14

5

6

8

24

3

1

24

C

Limits of ro

ad

way appro

ach fill

SECTION THROUGH ABUTMENT

Not to scale

the Specifications

as per Section 305.03(a) of



Subgrade

Benched


accordance with Table II of



10'-0"

Varie

s

22'-4"

3'-0"

1'-6"

23

17'-

0"

17'-

0"

17'-

0"

16Edge of berm

Elev. 224.71

0609-004-627, B628609 3

1'-2•"

Back of stem

16

End of slab

24

24

Rte. 609 Constr. LB

DETAIL

1'-3"1'-3"

2'-6"

2'-6"

typ.Drilled shaft

2'-6"

2'-6"

typ.Drilled shaft

L Drilled shaft typ.

2'-6" 2'-6"

16

16

Apr. 2019

of bearings

Line thru center

1'-3"1'-3"






and pier details.

fill slopes and footings. For details not shown, see abutment

This layout is to be used only for the purpose of locating

Notes:

Sta. 25+72.08

Abutment B

Sta. 22+43.92

Abutment A

of bearings

Line thru center

of bearings

Line thru center

44


To be paid for as

20'-

6"

16

16

16

16

16

16

Normal to abutment

SECTION A-A23

C

drilled shaft

L 54" dia.

aggregate

runcrusher

6" no. 25 or 26

min.

material

Geotextile bedding

ground

Exist.

1'-3" 1'-3"1'-3"1'-3"

1

12

1

1

1

1•

Edge of berm

of bearings

Line thru center

footing

Top of abutment

2'-6" 2'-6"

C

drilled shaft

L 54" dia.

Scale: •" = 1'-0"


Drawn: ................






Revisions

ROUTE

FEDERAL AID


STATE SHEET

NO.

VA.

STATEROUTE

FEDERAL AID


STATE SHEET

NO.

VA.

STATE

STRUCTURAL ENGINEER

RICHMOND, VA

VDOT S&B DIVISION

3'-2"

3'-2"

by the Engineer

placed as directed

dry riprap to be

38" deep Class II

4'-5"

Elev. 222.71

Sta. 22+49.59

Edge of berm Sta. 25+66.41

9" extension

min.

9" extension

c

Date




ROUTE

FEDERAL AID


STATE SHEET

NO.

VA.

STATE

28

30

2

27

2019, Commonwealth of VirginiaScale: ˆ" = 1'-0" unless noted otherwise

Plan

999FILE NO. 08.02-5

SHEET 5 of 7

DATE: 30Apr2019

PART 2

SUBSTRUCTURE LAYOUT


Designed: ...........

Drawn: ................

Checked: ............



RICHMOND, VA

VDOT S&B DIVISION

29

999-99_003.d

gn

3

SAMPLE SHEET FOR DECK EXTENSIONS

SUBSTRUCTURE LAYOUT

BRIDGE LAYOUT

A

A

122 0122-033-106, B601

N15 -12'-57"E°

°

SUBSTRUCTURE LAYOUT

Boring B-5Boring B-7

°

B

B

25

3

17

17

16

24

22

13 13 13

14

Sta. 17+58.00

Pier 15

11

17

31'-0"

6

17

17

Sta. 18+73.00

Pier 25

8

22

24

16

17

3

1

23

16

24'-1

0†"

24'-1

0†"

26

45

8'-

3"

CL footing

L Pier 1 and

8'-3"

3'-6"

4'-9"

6'-6"

10'-0"



To be paid for as

23

7'-6"

.pyt

54

C

CL footing

L Pier 2 andC

17

2424

Rte. 122 Constr.

DETAIL

SECTION THROUGH ABUTMENT A

3'-0"

4'-9"

16

2424

Apr. 2019

24

24

16

16

24

24

16

16 16

16

17

16

16

274'-0ƒ"

7'-

3"

Sta. 16+78.47

Abutment A

Sta. 19+52.53

Abutment B

= Boring locations, for details see sheet 26 thru 30.

greater than the select backfill may be left in place.

In cut situations, material with strength characteristics

to the Department.

Select Material Type 1, minimum CBR 30, at no additional cost

Bridge Specifications. 21A or 21B may be substituted for

accordance with Sections 303 and 305 of the VDOT Road and

Material Type 1, minimum CBR 30, and shall be compacted in

Material in the abutment select backfill zone shall be Select

and pier details.

fill slopes and footings. For details not shown, see abutment

This layout is to be used only for the purpose of locating

Notes:

of bearings

Line thru center of bearings

Line thru center

44

5'-7"

13'-1

0‡"

9'-8

…"

35'-6‚"

47'-1‚"

4'-0"

37'-6"

37'-6"

29'-6"

4'-0"

4'-1†"

37'-8‚"

28'-5"

5'-

5•

"

8'-

11"

Boring B-8

Phase 2

Elev. 900.60

Sta. 17+08.88

Edge of berm

Phase 1

Phase 2

47'-1‚"

34'-0†"

Phase 1

Boring B-6

3'-3"

joint

Constr.

Span a

79'-6…"

joint

Constr.

Phase 1

Phase 2

3'-3"

Boring B-10

Boring B-9

Span b

115'-0"

5'-0"

5'-0"

Boring B-12

Phase 2

Phase 1

joint

Constr.

79'-6…"

Span c

Boring B-11

Phase 2

Phase 1

Boring B-13

25'-7„"

joint

Constr.

Boring B-14

34'-10"

Normal to abutment

SECTION A-A

°20

°20

16

16

5

5

LB

16

16

ground

Exist.

by the Engineer

placed as directed

dry riprap to be

26" deep Class I


4" no. 25 or 26

4'-9" 3'-6"

18'-0"

Edge of berm

2

1

1

1

2'-2"

min.

of bearings

Line thru center

material

bedding

Geotextile

Scale: •" = 1'-0"

Scale = ‰" = 1'-0"

23 SECTION B-BScale: •" = 1'-0"

Normal to abutment

2'-2"

min.

Edge of berm

by the Engineer

placed as directed

dry riprap to be

26" deep Class I

4'-0"

12

1

min.

9" extension


4" no. 25 or 26

3'-0" 4'-9"

of bearings

Line thru center

12

1

Limits of ro

ad

way appro

ach cut

Zone of select backfill

material. Minimum density

95% or in accordance

with Table I of the

VTM-10 test method.

the Specifications



Subgrade

Back of backwall

Existing ground

Benched

of bearings

Line thru center

22'-0" 10'-0"4'-9" 3'-6"

1'-6"

Varie

s

1'-2•"

2

1

Elev. 901.00

Sta. 19+44.40

Edge of berm

material

Geotextile bedding

1

1

ground

Exist.

9" extension

min.

9" extension

9" extension

c

Date




ROUTE

FEDERAL AID


STATE SHEET

NO.

VA.

STATE

28

30

27


Plan

999FILE NO. 08.02-6

SHEET 6 of 7

DATE: 31Oct2018

PART 2

SUBSTRUCTURE LAYOUT


Designed: ...........

Drawn: ................

Checked: ............



RICHMOND, VA

VDOT S&B DIVISION

29

999-99_004.d

gn

4

SAMPLE SHEET FOR VIRGINIA ABUTMENTS

SUBSTRUCTURE LAYOUT

BRIDGE LAYOUT

Scale: 1" = 10' unless noted otherwise2

SUBSTRUCTURE LAYOUT

36'-5•"

15'-7„"

o

9'-

11"

4'-6‚"1'-6"

27'-

11•

"

34'-

11

…"

24'-3„"

32'-3†"

9'-

2"

o

208'-0"

12'-3‡"

30'-

4‚

"

25'-

0„

"o

o

o

26'-

2…

"

16'-

7†

"

24'-

0‚

"

27'-

10ƒ

"

2'-3„"

12'-11ƒ"

o130 -57'-38"

38 -05'-23"

Not to scale

Normal to abutment

Detail A

2'-0"

Toe of fill

12"

B

1

12

1

B

Edge of berm4'-0"

Top of footing

6"4"

6"

4"

3'-0"

SECTION B-B

•"

R = 2"

DETAIL A

4" min.

•"

2

CL Rte. 632

CL Track

L�

L

o = 54 -37'-41" Lt.

C Rte. 632

Rte. 58 Constr. B

POC Sta. 119+51.37

L�

L

o = 57 -31'-29" Lt.

C track

Rte. 58 Constr. B

POC Sta. 120+24.76Common chord

Rte. 58 Constr. LB

129 -57'-38"

29 -39'-18"

118 -22'-

29"12'-2"

4'-0"

8'-2"

8'-4"

3'-7"

11'-11"

Span a93'-6"

Span b

114'-6"

Elev. 80.00

Sta. 118+87.72

Edge of berm

for payment

measurement

Limit of

4'-

6"

4'-

6"

9'-

0"

typ.

4'-6"

4'-6"

9'-0"typ.

15'-

6"

7'-

9"

7'-

9"

5'-

7ƒ

"

C

typ.L Footing

38'-

3"

44'-

7"

Elev. 80.00

Elev. 80.00

RadialRadial

5'-1"

Sta. 120+73.61

of MSE wall

Inside face

for payment

limit of measurement

Face of abutment stem

1'-0†"2'-4"

14BH-03

14BH-04

14BH-05

14BH-06

0058-046-262, B62658

25

24

11

16

7

9

20

13

11

24

10

6

5

14

13

7

19

11

16

24

3

Rte. 58 Constr. L

Measured alongB

15

23

22

20

1

23

23

26

SLOPE PROTECTION

ABUTMENT A

16L footing

L Pier and

Limits of ro

ad

way appro

ach fill

Not to scale


Benched

Varie

s

the Specifications




accordance with Table II of



Back of backwall

Subgrade Top of existing ground

3'-0"

8'-2"10'-0"25'-3" Abutment B

44'-2" Abutment A

23

abutment footing.

are measured normal to

All horizontal dimensions

Note:

1'-3"

C

C

SECTION THROUGH ABUTMENT

4'-0"

DETAIL

= Boring locations, for details see sheets 25 and 26.

footings. For details not shown, see abutment and pier details.

This layout is to be used for the purpose of locating fill slopes and

Notes:

16

24

16

Oct. 2018

16

16

16

16

Sta. 118+80.00

Abutment A

Sta. 120+85.00

Abutment B

3

of bearings

Line thru center

of bearings

Line thru center

4

4

90'-2" 117'-6†"

55 -31'-23"o

Sta. 119+73.50

o

Radial

123 -49'-6"

R = 1,150.00'

15'-

6"

26'-

3‚

"

30'-

11‡

"

55 -43'-8"

1'-6"

16

5

15

15

15

1010

16

fabric

Welded wire

Retaining Structure (MSE wall).

shall be included in the price bid for

Abutment A. All excavation at Abutment B

To be paid for as structure excavation atof bearings

Line thru center

bearings

center of

Line thru

Preformed joint sealer

Hot poured joint sealer

adequate support

Earth bed to provide

8"

No. 17.13-8 at no additional cost when utilizing this option.

located in VDOT's Manual of the Structure and Division, Part 2, File

of the Specifications or in accordance with the Special Provision

punched, non-woven geotextile in accordance with Section 245.03 (d)2

approach roadway cut or fill. The separator fabric shall be needle-

fill and roadway subgrade, and between the select backfill and the

coarser, a separator fabric shall be used between the MSE wall back-

the abutment select backfill zone. If the MSE wall backfill is #8 or

minimum CBR 30 excluding #10 screenings, which may not be used in

select backfill zone at Abutment B in lieu of Select Material Type 1,

ment, the MSE wall backfill may be used for the entire abutment

At the Contractor's option and at no additional cost to the Depart-

the zone.

has been reduced by the estimated quantity of MSE wall backfill in

The estimated quantity given for the abutment select backfill zone

embankment material placed and finished as required.

The final depth A of the embankment side slopes shall be regular

than the select backfill may be left in place.

In cut situations, material with strength characteristics greater






c

Date




ROUTE

FEDERAL AID


STATE SHEET

NO.

VA.

STATE

28

30

27


S&B Div

S&B Div

S&B Div

Plan

999FILE NO. 08.02-7

SHEET 7 of 7

DATE: 31Oct2018

PART 2

SUBSTRUCTURE LAYOUT

Designed: ...........

Drawn: ................

Checked: ............



RICHMOND, VA

VDOT S&B DIVISION

29

999-99_004.d

gn

4

2

SUBSTRUCTURE LAYOUT

0058-965-107, B605164

25

26

3

16 16

16

16

11

15

6

20

7

13

24

5

11

8

12

24

11

9

3

1

9'-6"

33'-

4"

23'-

8"

9'-

8"

90

5'-0"

4'-6"

10BH-037

= 55 -09'-00" Lt.

L existing NPBL track

POT Sta. 341+49.64 Ramp EN Constr. LB

C

o

Span a

157'-8"

5'-6"

5'-6"

26'-

0"

20'-

0"

90

6'-

0"

N49 -57'-49"E

Span b

138'-0"

typ.

12'-0"

6'-0" typ.

6'-0" typ.

5'-

0" ty

p.

5'-

0" ty

p.

ty

p.

10'-

0"

16'-

6"

2'-6"

10BH-045

PC Sta. 343+63.00

Sta. 343+63.00

L footing

Span c

148'-10"

8'-0"

23'-

8"

33'-

4"

9'-

8"

Sta. 345+13.67

3'-3"

444'-6"

14

o

o

5

18

23

Scale: ˆ" = 1'-0" unless otherwise noted

LBRamp EN Constr.

Measured along

LC

LC

o o

LC

footing

Pier 2 and

LC

22

R = 720.00'

chord = 148'-6‡"

tangent

90 to local

o

o

1111

10

Elev. 115.55

Sta.340+73.83

Edge of berm 22

Elev. 114.56

Sta.345+08.42

Edge of berm

13

13

LBRamp EN Constr.

LCfooting

"9

1-'

00-

48

"

75-'

35-

38

LC track

4'-9

Sta. 342+25.00

footing

Pier 1 and

Oct. 2018

Scale: „" = 1'-0" Scale: „" = 1'-0"

A

A

BB

Scale: ‚" = 1'-0"

26'-

0"

14'-0"26'-0"

Elev. @ top of

sheeting = 116.00 +

Existing grade

Elev. 96.00 Elev. 96.00

2'-0"

10•

"10•

"

W21x62

Waler typ.12'-

0"

1.

2.

3.

4.

5.

6.

7.

8.

Elev. @ top of

sheeting = 116.00 +

12'-

1•

"12'-

1•

"

LSheeting

Min. S = 33.5 in /LF3

Scale: •" = 1'-0"

DETAIL CScale: •" = 1'-0"

DETAIL D

Detail C

E

L

E

…

EE

PLATE STIFFENER DETAIL

•" Stiffener Plate

…

SECTION E-E

Not to scale

typ.

Waler

Excavate to Elev. 113.00 and place first set of walers/struts

at Elev 114.00.

grade (Elev. 112.00 max).

Remove walers/struts from Elev. 114.00.

…

ƒ"

Stiffener

Stiffener

14'-0"

Detail D

C Pier 1

W6x25 strut

railroad shoring

Temporary

TEMPORAY RAILROAD SHORINGPLAN

Drive sheeting to refusal (assumed to be Elev. 96.00).

Excavate to Elev. 96.00, and cast concrete footing.

Backfill to top of footing at Elev. 100.50.

Remove walers/struts from Elev. 102.00.

at Elev. 102.00.

Excavate to Elev. 101.00, and place second set of walers/struts

Cast pier to Elev. 113.00 and backfill to 3 feet below existing

12 x 12 X ƒ" P

Sequence of construction for Pier 1:

TEMPORARY RAILROAD SHORING

SAMPLE SHEET FOR TEMPORARY RAILROAD SHORING

SUBSTRUCTURE LAYOUT

BRIDGE LAYOUT

Radial

Existing RR R/W

Sta. 340+67.33

Abutment A

Abutment B

4of bearings

Line thru center

4 of bearings

Line thru center

21

11'-0"

2'-0"

12'-

0"

SECTION B-BSECTION A-A

15

Radial15

o90

Existing grade

16

16

C

See sheet 5 for slope protection and select backfill details and notes.

abutment sheets.

of piers and abutments. For details of neatwork, see pier and

This layout is to be used only for the purpose of locating footings

Notes:

= Boring locations, for details see sheets 25 and 26.

BRIDGE LAYOUT SLOPE PROTECTION AND SCOUR COUNTERMEASURES

CONCRETE SLAB SLOPE PROTECTION


FILE NO. 08.03-1

Notes to Designer:

1. Information in boxes is for designer information only and is not to be placed on plans.

2. For use at highway grade separation structures and at railroad overpasses when requested by railroad company.

3. Length of slope protection for estimating to be measured along top surface between limits shown. Limits are to be shown on plans.

4. For parallel overpasses, slope protection between structures shall be considered when the edges of road pavements are 50 feet or less apart.

5. Slope Spread Footing Footing on Piles 1½ : 1 8’ minimum 6’ minimum 2 : 1 10’ minimum 8’ minimum

6. For alternate details, see File No. 08.03-2.


CONCRETE SLAB SLOPE PROTECTION


FILE NO. 08.03-2

For notes to designer, see File No. 08.03-1.


CONCRETE SLAB RIPRAP


FILE NO. 08.03-3

Notes to Designer: 1. Information in boxes is for designer information only and is not to be placed on plans.

2. For use at stream crossings. Class I dry riprap over Geotextile fabric is an acceptable alternate.




6. For Detail A, Detail B and Section B-B, see File No. 08.03-4.

Section A-A (Normal to Abutment)


CONCRETE SLAB RIPRAP


FILE NO. 08.03-4


BRIDGE LAYOUT SLOPE PROTECTION AND SCOUR COUNTERMEASURES ARTICULATED CONCRETE BLOCK REVETMENT SYSTEM


FILE NO. 08.03-5

Notes to Designer:


2. For use at stream crossings with approval from the District Structure and Bridge Engineer. Class I dry riprap over Geotextile fabric is an acceptable alternate.




6. For Detail A and Section B-B, see File No. 08.03-6.

7. Sample of the Special Provision is available in the Engineering Services Program Area in the Structure and Bridge Division.

BRIDGE LAYOUT SLOPE PROTECTION AND SCOUR COUNTERMEASURES ARTICULATED CONCRETE BLOCK REVETMENT SYSTEM


FILE NO. 08.03-6



RIPRAP SELECTION ALGORITHM


FILE NO. 08.03-7

RIPRAP DETAIL SELECTION ALGORITHM FOR SLOPE PROTECTION

AND SCOUR COUNTERMEASURES

Riprap Detail Selection Algorithm

VDOT Major Stream Crossing Report

Hydraulically equivalent to existing structure in all parameters (with the concurrence of the Department) or reasonable conclusion there is no increase to flood elevations and a scoured bed profile is not needed (with the Hydraulic Section’s approval)?

Perform detailed H&HA Analysis HERS (No detailed hydraulic study required)

Yes No

Riprap Scour Countermeasures adopted?

Yes No

Cost-effective to design abutment and its foundation to transfer loads to suitable soil/rock layers so it will be fully self-supporting under design scour event conditions, and only provide Riprap Slope Protection?

Does the limit of slope protection fall outside the main channel (i.e. located within the existing floodplain)?

Yes

Use Riprap details shown on File No. 08.03-8. Complete SECTION A-A with DETAIL A, Toe Termination in Floodplain

Use Riprap details shown on File No. 08.03-10

No Use Riprap details shown on File No. 08.03-8. Complete SECTION A-A with DETAIL A, Toe Termination in Main Channel

Design the abutment and its foundation to transfer loads to suitable soil/rock layers, and only provide Riprap Slope Protection

Yes

No

Revise Bridge TSL by considering other options (e.g. increasing bridge length by moving abutments further back) in consultation with the project team members


RIPRAP SLOPE PROTECTION


FILE NO. 08.03-8

RIPRAP SLOPE PROTECTION (NOT FOR SCOUR COUNTERMEASURES)


RIPRAP SLOPE PROTECTION


FILE NO. 08.03-9

RIPRAP SLOPE PROTECTION (CONT’D)

Notes to Designer:


2. For use at stream crossings.

3. Length of riprap for estimating to be measured along top surface between limits shown. Limits are to be shown on plans.



6. Riprap Class and depth, and aggregate cushion layer thickness as noted on Form LD-293 or as directed by the District Structure and Bridge Engineer.

7. Where depth of riprap encroaches on footing or top of riprap aligns with top of footing, minimum dimension is equal to riprap depth. A longer length may be required to obtain Note 5 minimum distance.

8. Geotextile fabric at the toe shall only be extended 9 inches. Permeation of fines into the toe area and potential settling of riprap in the toe area is not a concern.

9. The minimum dimension is equal to the riprap depth.

10. Complete SECTION A-A with applicable toe termination from DETAIL A at match lines. Remove match lines when complete.

11. Length of substructure wingwall but not more than 15’ (3’-0” behind elephant ears where applicable).


RIPRAP SCOUR COUNTERMEASURES


FILE NO. 08.03-10





FILE NO. 08.03-11

RIPRAP SCOUR COUNTERMEASURES (CONT’D)

Notes to Designer:


2. For use at stream crossings.

3. Length of riprap for estimating to be measured along top surface between limits shown. Limits are to be shown on plans.

4. For parallel overpasses, slope protection between structures is required when the edges of road pavements are 50 feet or less apart.


6. Riprap depth and Class, and aggregate cushion layer thickness as noted on Form LD-293 (or Scour Analysis report).

7. Where depth of riprap encroaches on footing or top of riprap aligns with top of footing, minimum dimension is equal to riprap depth. A longer length may be required to obtain Note 5 minimum distance.

8. Geotextile fabric at the toe shall only be extended 9 inches to allow uninhibited launching of the termination riprap mass into potential future voids in the toe area due to floodplain or channel bed erosion.

9. Twice the Design Scour Event flow depth in the overbank area (or main channel) but not more than 25’, as noted on Form LD-293 (or Scour Analysis report).

10. Twice the Design Scour Event flow depth in the overbank area (or main channel) but not less than 25’, as noted on Form LD-293 (or Scour Analysis report).

11. Length of substructure wingwall but not more than 15’ (3’-0” behind elephant ears where applicable). Riprap apron may be extended along upstream wingwall, back to the limit of riprap slope protection.

12. Show Ordinary High Water (OHW) as applicable.

BRIDGE LAYOUT BRIDGE STAKEOUT

GENERAL INFORMATION


FILE NO. 08.04-1

GENERAL INFORMATION

This section of the chapter includes a sample Bridge Stakeout plan with a checklist. The sample plan represents a typical Bridge Stakeout plan, some projects may require additional information. It is the responsibility of the Land Surveyor to include enough information in order to accurately layout the bridge foundations. The bridge stakeout also shall comply with the current VDOT Survey Manual. It should be noted that this information is not the responsibility of the designer and is not to be included with the plans. This information shall be provided by the Contractor for the purpose of construction and shall be reviewed by the Department.

BRIDGE LAYOUT BRIDGE STAKEOUT

CHECKLIST FOR BRIDGE STAKEOUT


FILE NO. 08.04-2

CHECKLIST FOR BRIDGE STAKEOUT 1 Label Bridge Stakeout.

2 Provide scale.

3 Label Construction Baseline.

4 Label Line thru center of bearings.

5 Label Pier.

6 Show stationing of intersection of Pier and Construction Baseline or Centerline.

7 Show stationing of intersection of Line thru center of bearings or line thru center of piles and

Construction Baseline or Centerline.

8 Show Hub, tack and stake.

9 Label angles.

10 Dimension span lengths.

11 Dimension distance between stakes.

12 Show north arrow.

13 Provide benchmarks.

14 Include applicable notes. 15 Show legend.

16 Provide explanation of guard stake marking.

17 Show Seal of the Land Surveyor.

18 Provide certification.

L C

L C

125.0'

125.0'

125.0'

125.0' 125.0'

125.0'

125.0'

125.0'

125.0'

125.0'

125.0'

125.0'

125.0'

125.0'

125.0'

125.0'

50.0

0'

50.0

0'

50.0

0'

50.0

0'

50.0

0'

50.0

0'

50.0

0'

50.0

0'

50.0

0'

50.0

0'

50.0

0'

50.0

0'

50.0

0'

50.0

0'

50.0

0'

50.0

0'

50.0

0'

50.0

0'

50.0

0'

50.0

0'

234

+29.5

6

Lin

e thru ce

nter of bearin

gs

LC LC LC

239

+29.5

6

Lin

e thru ce

nter of bearin

gs

235

240

Lin

e thru center of bearin

gs

Lin

e thru center of bearin

gs

60 00' 00"

60 00' 00"o

o

o

oo o

o

o

o

CO

MM

ON

WEALTH OF

VIR

GIN

IA

Lic. No. 00000

NAME HERE

Land Surveyor Reg.# Date

All Offset Points Staked in The Field.

Was Conducted Under My Direct Supervision And This Sketch Correctly Represents The Location Of

1. Licensed Land Surveyor, Hereby State The Stake Out of Bridge # , Project #

Certification

Elevation = 429+22

Benchmark #2 - Railroad Spike Set in The Top Of A 48" Stump 105' Rt. Sta. 240+50 Construction Baseline

Elevation = 433.99

Benchmark #1-3 Nail Set in The Base Of A 36" Oak, 85' Lt. Of Sta. 232+00 Construction Baseline

120 00' 00"

120 00' 00"

FACE OF STAKE FACING BASE LINE (FRONT)

& TACK, MEASURED ALONG THE CENTERLINE OF THE PIER.

DISTANCE IN FEET BETWEEN THE BASE LINE AND THE HUB

THE HORIZONTAL NUMBER (50.0) AT TOP OF STAKE IS THE

INTERSECTION BETWEEN THE BASE LINE AND THE CENTERLINE.

THE VERTICAL NUMBER IS THE STATION NUMBER AT THE POINT OF

DENOTES HUB, TACK, AND STAKE

R.P.

Pier 1

L C

LC

FACE OF STAKE FACING AWAY FROM BASE LINE (BACK)

Distances Are Provided For Checking Purposes Only.

5. All Reestabilishing Of Line Thru Center of Bearings And Centerlines Of Piers Will Be Intersection Only.

The Bridge Stake Out Sketch.

The Descriptions And Station And Offset From The Construction Baseline Shall Be Shown On

4. A Minimum Of Two Benchmarks Shall Be in The Immediate Vicinity Of The Bridge.

3. Angles And Distances Shall Be Checked At Ends of All Offset Lines.

2. Offsets When Possible Will Be Set Equal Distance From Line Thru Center of Bearings and Centerline Of Piers.

1. At Least Two Offset Points Shall Be Set On Each of The Abutments And Piers.

Notes

LA

NDSUR

EYO

R

V

235

+54.5

6

50.0'

FILE NO. 08.04-3

SHEET 3 of 3

DATE: 31Oct2018

PART 2

SAMPLE SHEET FOR BRIDGE STAKEOUT

BRIDGE STAKEOUT

BRIDGE LAYOUT

2 Not to scale

BRIDGE STAKEOUT1

Constr. BL

3

4

5

C Pier 1L C Pier 2L C Pier 3L

6

235

+54.5

6

Pier 1

236

+79.5

6

Pier 2

238

+04.5

6

Pier 3

7

8

9

10

11

14

15

16

17

18

13

12

OF PIER 1

R.P. PIER 1 DENOTES REFERENCE POINT ON CENTERLINE

EXPLANATION OF GUARD STAKE MARKING:

60 -00'-00" 60 -00'-00"60 -00'-00" 60 -00'-00" 60 -00'-00"

table of contents – bridge layout chapter 8bridge layout introduction part 2 date: 31oct2018 sheet...

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