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of this standard to other for

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T assu

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The use of this standard is governed by the "T

exas E

ngin

eerin

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e

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No

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SHEET 1 OF 2

GAF JRP TxDOTTxDOTgsescdse.dgn

February 2010

TYPE II ~ CROSS DRAINAGE

FOR 12" TO 60" DIA C.M.P. CULVERTS

SAFETY END TREATMENT

STEEL END SECTION

PREFABRICATED GALVANIZED

GS-ES-CD

DD

AA

D0"-

3"

0"-

3"

Ma

xMa

x

4"

10"

4"

4"

1'-

2"

1'-

6"

Riprap

4"

6"

Ma

x

H

2"

8"

W

TYPICAL INSTALLATION

ISOMETRIC VIEW OF

1

SL

Riprap

Pipe Runner

Bottom Anchor Toewall

36"

42"

48"

60"

54"

H

12"

9"

PREFABRICATED GALVANIZED STEEL END SECTION DETAILS

END ELEVATION OF END SECTIONSIDE ELEVATION OF END SECTION

PLAN OF END SECTION

SL

1

4

(Safety End Treatment & Riprap not shown for clarity)

5

6

5

4

6"24" or less

42" or greater

30"

9"

30"

36"

No

All Skews

All Skews

(Pipe Runners not shown for clarity)

SL

1

4

3'-11"

4'- 5"

4'-11"

5'- 5"

5'-11"

6'- 5"

N/A

Skew > 15°

2

24" or less

7"x SL

7

7

3:1 Side Slope

A

12"

16"

12"

9"

2

5'- 0"

6'- 7"

8'- 2"

11'- 3"

12'-10"

9'- 9"

4:1 Side Slope 6:1 Side Slope

1

N/A

10'- 0"

19'- 8"

34'- 2"

W Gage

D + 32"

D + 40"

14

12/10 3

16D + 24"

D + 32" 14

N/A N/A N/A N/A N/A N/A

2 2

7'- 1" 11'- 3"

9'- 2" 14'- 4"

11'- 2" 17'- 4"

13'- 3" 20'- 4"

15'- 4" 23'- 5"

17'- 4" 26'- 5"

11-10: Add note for synthetic fibers.

5-14: Notes; add alternate requirements.

Riprap in accordance with Item 432, "Riprap".

Riprap placed beyond the limits shown will be paid as Concrete

" dia smooth or deformed bar (pre-galvanized).83

Reinforce upper edge of Prefabricated End Section with minimum

other combinations of threaded rods and/or coupling bands.

Prefabricated End Section may be with strap and bolt as shown or

Connection between Corrugated Metal Pipe Culvert and Galvanized

vehicle safety.

recommended values. Slope of 3:1 or flatter is required for

calculations, and dimensions shown herein are based on these

Recommended values of slope are 3:1, 4:1, & 6:1. All quantities,

10 gage center panels.

Provide all 3-piece apron sections with 12 gage sides and

Values shown are minimum requirements.

the STANDARD PIPE SIZES table.

Bottom Anchor Pipe are the next smaller size pipe as shown in

is the same size as the Pipe Runner. Cross Pipe Stub Out and

Provide size of Pipe Runner as shown in the tables. Cross Pipe1

4

2

3

5

6

7

GENERAL NOTES:

MATERIAL NOTES:

End Section

Galvanized Steel

Pipe

Cross

Line

Flow

Pipe

Anchor

Bottom

of Traffic

Dire

ction

for payment)

be included with S.E.T.

Limits of Riprap (to

for payment)

be included with S.E.T.

Limits of Riprap (to

TOEWALL DETAILS

See UPPER ANCHOR

Steel End Section

Prefabricated Galvanized

CAST-IN-PLACE CONCRETE

SIDE ELEVATION OF

PIPE RUNNER LENGTHS, & REQUIRED PIPE SIZES

CROSS PIPE LENGTHS,

(Culvert I.D.)

(Nominal)

D

Length

Pipe

Cross

Length

Runner

Pipe

Size

Runner

Pipe

Length

Runner

Pipe

Size

Runner

Pipe

Length

Runner

Pipe

Size

Runner

Pipe

MAX PIPE RUNNER LENGTH

STANDARD PIPE SIZES &

INFORMATION

PREFABRICATED END SECTION

Required

Runner

Pipe

(Culvert I.D.)

(Nominal)

D

Length

Runner

Max Pipe

Size

HSS

of End Section

Reinforced Upper Edge

Top of Riprap

Varies Varies (dependent on Bottom

Anchor Pipe Option)

nominal I.D.)

intersection of

Working Point (at

of C.M.P.

Culv

ert

No

min

al I.D.

of C.M.P.

Culv

ert

No

min

al I.D.

Toe Plate

Ear Plate

Ear Plate

Toe Plate

Extension

Toe PlateLine

Flow

Flow Line

1

Payment for riprap and toewall is included in price bid for each Safety End Treatment.

to the values presented on this standard.

standard. Alternate styles of End Sections will require that appropriate adjustments be made

All Pipe Runners, calculations, and dimensions are based on the End Section shown on this

pipe runner size; H, A, W, and gage for end section; and material requirements noted.

supplied. Alternate styles must meet all of the following: design values shown in tables for

Alternate styles of End Sections, including those with pre-attached pipe runners, may be

Transportation Institute, March 1981.

by Research Report 280-1, "Safety Treatment of Roadside Cross-Drainage Structures", Texas

Pipe Runners are designed for a traversing load of 1,800 pounds at yield as recommended

the Pipe Runners.

out of control vehicles are likely to traverse the openings approximately perpendicular to

The Safety End Treatments shown herein are intended for use in those installations where

used in lieu of reinforcing steel in concrete riprap unless noted otherwise.

Synthetic fibers listed on the "Fibers for Concrete" Material Producer List (MPL) may be

for Toewall when an alternate End Section with pre-attached pipe runners is supplied.

in the Plans. Provide Concrete Riprap in accordance with Item 432, "Riprap". Use Option B1

Concrete Riprap is required only when Pipe Runners are required, unless otherwise shown

Toe Plate Extensions are required only when shown elsewhere in the Plans.

damaged during transport or construction in accordance with Item 445, "Galvanizing".

Galvanize all steel components, except reinforcement, after fabrication. Repair galvanizing

Provide bolts and nuts conforming to ASTM A307.

(Grade B), A53 (Type E or S, Grade B), or API 5LX52.

Provide Pipe Runners, Cross Pipes, and Anchor Pipes conforming to ASTM A1085, A500

Size

STD

2.375 x 0.154 2"

3"

4"

5"

3.500 x 0.216

4.500 x 0.237

5.563 x 0.258

3.500 x 0.216

3.500 x 0.216

3.500 x 0.216

3.500 x 0.216

4.500 x 0.237

4.500 x 0.237

3.500 x 0.216

3.500 x 0.216

4.500 x 0.237

4.500 x 0.237

4.500 x 0.237

4.500 x 0.237

4.500 x 0.237

4.500 x 0.237

4.500 x 0.237

5.563 x 0.258

5.563 x 0.258

5.563 x 0.258

StandardDivisionBridge

of this standard to other for

mats or for in

correct results or da

mages resultin

g fro

m its use.

kin

d is

made by Tx

DO

T for any purpose

whatsoever. Tx

DO

T assu

mes no responsibilit

y for the conversio

n

The use of this standard is governed by the "T

exas E

ngin

eerin

g Practic

e

Act".

No

warranty of any

DIS

CL

AI

ME

R:

FILE:

DA

TE:

DN: CK: DW: CK:FILE:

JOB

COUNTY

SECT

DIST

REVISIONS

HIGHWAY

SHEET NO.

C TxDOT

CONT

SHEET 2 OF 2

February 2010

gsescdse.dgn TxDOT TxDOT JRP GAF

PREFABRICATED GALVANIZED

STEEL END SECTION

SAFETY END TREATMENT

FOR 12" TO 60" DIA C.M.P. CULVERTS

TYPE II ~ CROSS DRAINAGE

GS-ES-CD

4"

12"

8" 4"

12"

A

A

3" 5"

Lap

9" Min

for payment)

be included with S.E.T.

Limits of Riprap (to

2"

L

1

SL

1'-

2"

6" 6" 3" Min

Clear12" 14"

BOTTOM ANCHOR TOEWALL DETAILS

1'-9" 2'-0"

7

9"

" Dia Hole21 10

8

11

1'-

2"

90°

10

C

SL

1

3"

8

9

C

C

" Dia Hole21 10

2"

LC Stub Out

"214

12"

C

"214

C

9"

CROSS PIPE AND CONNECTIONS DETAILS

BOTTOM ANCHOR PIPE DETAILS

Pipe Runner Length (See table)

"214

"214 Pipe Runner Length (See table)

PIPE RUNNER DETAILS

C Pipe Runner

5"

5"

L

1'-2"+-

+-

1'-2"

L Pipe Runner

L Cross PipeC L Cross PipeC

L

OPTION A2OPTION A1

OPTION B1 OPTION B2

OPTION B1 OPTION B2

4"

Riprap

4" Min

C

9

SECTION A-A

"4

11

2" Min

SHOWING TYPICAL RIPRAP

1'-6"

6

10

(End Section & Riprap not shown for clarity)

C

Upper Anchor Toewall

6

6

Toe Plate

C

Top of Riprap

5"

Pipe Runner Length (See table)

Cross Pipe Dia21 3" + +

11

12

7

10" Dia Hole21

10

Cross Pipe

UPPER ANCHOR TOEWALL DETAILS

36"

42"

48"

60"

54"

12

33"

30"

27"

24"

21"

18"

15" 0.6

12" 0.5

0.6

0.7

0.7

0.8

0.9

0.9

1.0

1.1

1.2

1.3

1.5

0.7

0.6

0.8

0.8

0.9

1.0

1.1

1.1

1.2

1.4

1.5

1.7

1.8

1.0

0.9

1.1

1.2

1.3

1.4

1.5

1.6

1.7

1.9

2.1

2.3

2.6

11-10: Add note for synthetic fibers.

5-14: Notes; add alternate requirements.

Toewall

Anchor

Bottom

information only.

need to be adjusted. Riprap quantities are for Contractor's

Pipe Culvert. For multiple Pipe Culverts quantities will

Quantities shown are for one end of one Corrugated Metal

Bottom Anchor Pipe.

may be substituted for the mitered and welded joint in the

or a manufactured elbow (of the same material as the Runner)

At fabricator's option, a heat bend to a smooth 5" radius

is adequate.

the lap of the Pipe Runner with the Bottom Anchor Pipe

" hole to ensure that83After installation, inspect the

to allow cleanout access.

Pipe so as to permit disassembly of the bolted connection

Ensure that Riprap concrete does not flow into the Cross

End Section.

from Side Slope of Riprap and upper edge of Prefabricated

Note that actual slope of Pipe Runner may vary slightly

Concrete Riprap in accordance with Item 432, "Riprap".

Riprap placed beyond the limits shown will be paid as

" dia smooth or deformed bar (pre-galvanized).83minimum

Reinforce upper edge of Prefabricated End Section with

RIPRAP QUANTITIES (CY)

ESTIMATED CONCRETE

I.D.

Culvert

Nominal

Slope

Side

3:1

Slope

Side

4:1

Slope

Side

6:1

Steel End Section

Prefabricated

Upper Edge of

Pipe Runner

Stub Out or

Hex Nut & Washer

Pipe Anchor Bolt w/

" Dia x 12" Cross43L

Connector

Strap

of End Section

widest portion

Tangent to

End Section

Galvanized Steel

Hex nut & Washer

" x 12" Bolt w/43L

with top of Riprap)

L Cross Pipe (flush

End Section

Galvanized Steel

UPPER ANCHOR TOEWALL

SHOWING CROSS PIPE &

Hex Nut & Washer

Pipe Anchor Bolt w/

" Dia x 12" Cross43L

TOEWALL DETAILS

See UPPER ANCHOR

Point

Working

Pipe

Cross

Out

Stub

End Section

Galvanized Steel

Prefabricated

Nut & 2 Washers

" Dia Bolt w/21L

Anchor Pipe

Bottom

and Anchor Pipe option B2. Riprap not shown for clarity.)

(Showing Pipe Runner with Cross Pipe Connection option A1

PIPE RUNNER INSTALLATION

SIDE ELEVATION OF

Toewall

Anchor

Bottom

Runner

C Pipe

Pipe

Anchor

Bottom

Toewall

Anchor

Bottom

Pipe

Anchor

Bottom

Runner

C Pipe

Lap

9" Min

of Pipe)

Hole (at upper end

" Dia Through85L

Through Hole

" Dia85L

" Dia Through Hole1615

Through Hole

" Dia 1615

Cross Pip

e Length

or Stub Out

Pipe Runner

Toewall

Anchor

Upper

Point

Working