Attachment_2B_-_Specification_Drawings_9706-TS-0328418-1c.pdf

PDF 10 MB Posted Oct 23, 2026

Attached to: Main Line Guardrail IFB
Solicitation number: 0000039836
Issued by: California

About this file

Written by GovTribe AI · Oct 28, 2026

This specification drawing document supports the California Department of Transportation's (Caltrans) statewide contract for main line guardrail parts used in the repair and maintenance of metal guardrail systems on California highways and freeways. The document provides comprehensive technical drawings and specifications for Midwest Guardrail System (MGS) and Thrie Beam Barrier (Type M) components, including rail elements, posts, blocks, hardware, end anchors, and transition details. The drawings reference Caltrans' 2025 Standard Plans, with supplemental drawings provided for parts not covered by existing standard plans. Key components detailed include wood and steel post installations with nominal dimensions of 6" x 8" and 6" x 12" wood blocks, W6 x 8.5 or W6 x 9 steel posts, rail element splice connections using button head bolts and hex nuts, and various end anchor assemblies. Post spacing is standardized at 6'-3" center-to-center with rail elements typically 13'-6" in length and spliced at 12'-6" intervals. The document encompasses 27 pages of detailed technical drawings with multiple callouts, notes, and references to related standard plan sheets for installation procedures and system layouts.

The specifications address both standard installations and specialized applications including buried post end anchors for steep slopes, cable anchor connections, rub rail installations, and transition details from Thrie Beam systems to MGS. All drawings are prepared by registered California civil engineers and dated September 19, 2025, with an approval date of July 1, 2025. The document establishes material gauge specifications, bolt hole dimensions, thread lengths, and installation clearances to ensure compliance with Caltrans' engineering standards. Dimensional tolerances and notes specify details such as ¾-inch diameter bolt holes, recessed nut placements, slotted holes for splice connections, and height requirements for various railing configurations. This technical specification document serves as the basis for the establishment of a statewide contract term of two years with three one-year extension options, available for mandatory use by Caltrans and other California state departments.

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Attachment_2_-_Technical_Specification_9706-TS-0328418-1a.pdf	PDF	Oct 23, 2026
Event_ID_No._0000039836.docx	DOCX document	Oct 23, 2026
Attachment_1_-_Pricing_Workbook.xlsx	XLSX spreadsheet	Oct 23, 2026
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Attachment_2A_-_Core_Part_Requirements_9706-TS-0328418-1b.xlsx	XLSX spreadsheet	Oct 23, 2026
Attachment_4_-_Technical_Questionnaire_9706-TQ-0328418.xlsx	XLSX spreadsheet	Oct 23, 2026
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Document Overview:

• This document contains drawings that form a part of the technical specification for the California statewide contract covering many of the main line guardrail parts used by the California Department of Transportation (Caltrans) when repairing metal guardrail systems on California’s highway and freeway systems.

• Most part drawings are covered by Caltrans' 2025 Standard Plans sheets. When a part drawing is necessary but isn’t part of an existing 2025 Standard Plan sheet, the drawing has either been pulled from historical Standard Plan sheet(s) or created and placed on its own sheet near the end of this document. These sheets are titled, “Supplemental 01” - “Supplemental nn”.

• When there isn’t an existing drawing for a given part, and a part drawing is not necessary, this document may include a “general system drawing” that shows how the part will be used.

• When there are multiple drawings on a page, the applicable drawing(s) have been highlighted and tagged with “Drawing Callout #s”

Legend:

Identifies "part drawings"

Identifies "general system drawings"

Flags the items that are in scope, when there are multiple items (e.g. in a table, drawing title, etc.)

State of California Drawings

Main Line Guardrail Parts

Attachment 2B 9706-TS-0328418-1c

Event ID: 0000039836

Walters, M Page 1 of 27 9/30/2026

DGS-PD_Engg Rectangle

DGS-PD_Engg Line

See Note 4

SEE NOTE 15

IN TOP OF BLOCK

2-16d Galv NAILS

TOENAIL WITH

POSTPOST

12 Ga NOMINAL

3¼" c) b) a) splice bolts and nuts are to be used.

rail element, a total of 4 of the above described

Where end cap is to be attached to the end of a in the direction of traffic, see details.

The ends of the rail elements are to be overlapped are to be used at each rail splice connection.

toward rail element. A total of 8 bolts and nuts with ?" Ø recessed hex nuts. Recess of hex nut points inserted into the ?" x 1?" slots and bolted together

?" Ø x 1¼" button head oval shoulder splice bolts

Connect the overlapped end of the rail elements with

CONNECT RAIL TO POST AND BLOCK

?" Ø BUTTON HEAD BOLT TO

TOP OF RAIL

6'-3" 6'-3"

RAIL ELEMENT LENGTH = 13'-6½"

RAIL SPLICE

IN RAIL ELEMENT

BOLT SLOT PATTERN

IN RAIL ELEMENT

BOLT SLOT PATTERN

IN RAIL ELEMENT

BOLT SLOT PATTERN

12½"

4¼" 4¼"2" 2"

SEE NOTE 13

¾" x 2½" SLOT, CONNECTION TO LINE POST

ON RAIL FACE FOR BOLTED

WITH Hex NUT. NO WASHER

?" Ø BUTTON HEAD BOLT

N O

T E

S E

WASHER

STEEL

CUT

TOP OF RAIL

SEE NOTE 3

WOOD POST,

6" x 8" x 6'-0"

POST

RAIL ELEMENTS SPLICED AT 12'-6" INTERVALS

6'-3" 6'-3"

SEE NOTE 13

UNDER RAILING

SHOULDER SURFACING

GROUND LINE OR

RAIL SPLICE

PLAN

ELEVATION

SECTION A-A

RAIL ELEMENT SPLICE DETAIL

POST INSTALLATION

TYPICAL WOOD LINE

MIDWEST GUARDRAIL SYSTEM WITH WOOD POST AND BLOCKS

SEE NOTE 16

6" x 8" x 1'-2" WOOD BLOCK, Typ, SEE NOTE 14

?" x 1?" SLOTS, SEE NOTE 14, Typ

1˜"

3?"

UNDER RAIL ELEMENT

SHOULDER SURFACING

GROUND LINE OR

1? "

PLANS APPROVAL DATE

No.

Exp.

R E

G I

S T

E R

D P

ROFESSIONA

E N

G I

N E

E R

T A

OF CALIF

ORN

REGISTERED CIVIL ENGINEER

CIVIL

Dist COUNTY ROUTE

POST MILES

TOTAL PROJECT

SHEET

No.

TOTAL

SHEETS

S T

A N

D A

R D

P L

A N

?" TOLERANCE

7-1-25

THE STATE OF CALIFORNIA OR ITS OFFICERS

OR AGENTS SHALL NOT BE RESPONSIBLE FOR

THE ACCURACY OR COMPLETENESS OF SCANNED

COPIES OF THIS PLAN SHEET.

NOTES:

17.

16.

15.

14.

13.

12.

11.

10.

Install posts in soil.

6" x 12" x 1'-2" block must be used with 6" Type A dike.

future adjustments of railing height. See Standard Plan A77N1.

Additional hole in uppermost portion of line post is for potential

Slotted holes for splice bolts to overlap ends of rail element.

block and post.

Slotted hole for bolted connection of rail element to see Standard Plan A77N4.

For typical MGS delineation and dike positioning details, see Standard Plans A79C1 and A79C2.

For MGS connection details to abutments and walls, see Standard Plans A79B1 and A79B2.

For details of MGS connection to bridge railing, (Type AGT), see Standard Plan A79A1.

For details of MGS transition to Approach Guardrail Transition

For MGS end anchor details, see Standard Plans A77S1 and A77T2.

use 31" height terminal system end treatment.

If railing is connected to terminal system end treatment, of Standard Plans.

For MGS typical layouts, see the A77P, A77Q and A77R series except as otherwise noted.

MGS post spacing to be 6'-3" center to center, For additional installation details, see Standard Plan A77N3.

see Standard Plan A77N1.

For details of wood posts and wood blocks used to construct MGS, see Standard Plan A77M1.

For details of standard hardware used to construct MGS, For details of steel post installations, see Standard Plan A77L2.

(WOOD POST WITH WOOD BLOCK)

STANDARD RAILING SECTION

MIDWEST GUARDRAIL SYSTEM

NO SCALE

DEPARTMENT OF TRANSPORTATION

STATE OF CALIFORNIA

RAIL ELEMENT

SECTION THRU

A77L1

3-31-27

Malik Rehman

September 19, 2025 C83390

1#10

State of California Drawings

Main Line Guardrail Parts

Attachment 2B 9706-TS-0328418-1c

Event ID: 0000039836

Walters, M Page 2 of 27 9/30/2026

Rectangle

CXl

2" =-------.

Typ m Typ Typ

II(,"¢ X 1/•"

DEEP RECESS

ONE OR BOTH

I +

I + _,.

3'-1½"

3/4" x 21/2" SLOT, _/ Typ

%" !1,1 RECESS NUT

BUTTON HEAD BOLT

L THREAD LENGTH

1'!.'' FULL THREAD LENGTH

2" FULL THREAD LENGTH

10" 4" Min THREAD LENGTH

18" 4" Min THREAD LENGTH

20" 4" Min THREAD LENGTH

22" 4" Min THREAD LENGTH

26" 4" Min THREAD LENGTH

36" 4" Min THREAD LENGTH

""2¾" 2" Min THREAD LENGTH

"" 19" 4" Min THREAD LENGTH ff For nested rci I applications l I

, 6\1!" 13 - 2

6'-3"

SYMMETRICAL

ABOUT il

TYPICAL RAIL ELEMENT

-�-- -T� ' ii/!

'-'�---+�-i�

%" !1,1 BUTTON HEAD BOLT

NOMINAL GAUGE THICKNESS

12 Ga is 0.108" 10 Ga is 0.138" l I

12 Ga

NOMINAL THICKNESS

SAME SHAPE AS RAIL

ELEMENT SECTION

3'-1½"

·1 I

+ I +

+ I + ,I. ,I.

SEE NOTE

�Eli- -�- ====1

1 '-0" I 1 '-0" TAPER

ELEVATION

END CAP (TYPE A)

Dist COUNTY ROUTE

/f�f.;,'rl'OIL REGISTERED cfVIL ENGINEER

September 1 9, 2025

THE STATE OF CAUFORNIA OR ITS OFFICERS

OR AGENTS SJ/All NOT 8E R£SPONS/8L£ FOR

THE ACCURACY OH r:ow>LETENESS OF SCANNED

COPIES OF THIS PLAN SHEET.

NOTE:

1. Slotted holes for splice bolts to overlap ends of rai I elemenT.

PLAN

8½" 8"

VARIES

ELEVATION

END CAP (TYPE B)

STATE OF CALIFORNIA

DEPARTMENT OF TRANSPORTATION

GUARDRAIL SYSTEM MIDWEST

STANDARD HARDWARE

NO SCALE

A77M1

-g r

1#10

1#50 1#4a0 1#20 1#3

1#4b0

State of California Drawings

Main Line Guardrail Parts

Attachment 2B 9706-TS-0328418-1c

Event ID: 0000039836

Walters, M Page 3 of 27 9/30/2026

DGS-PD_Engg Rectangle

DGS-PD_Engg Line

THE STATE OF CALIFORNIA OR ITS OFFICERS

OR AGENTS SHALL NOT BE RESPONSIBLE FOR

COPIES OF THIS PLAN SHEET.

THE ACCURACY OR COMPLETENESS OF SCANNED

PLANS APPROVAL DATE

No.

Exp.

R E

G I

S T

E R

ROFESSIONA

G I

N E

E R

T A

TE OF CALIF

ORN

REGISTERED CIVIL ENGINEER

CIVIL

Dist COUNTY ROUTE

POST MILES

TOTAL PROJECT

SHEET

No.

TOTAL

SHEETS

See Note 3 See Note 4

SEE NOTE 1

SEE NOTE 1 SEE NOTE 1

See Note 3

" 2

12"8"

6" x 12" WOOD BLOCK6" x 8" WOOD BLOCK6" x 8" WOOD POST

SIDE FRONT SIDE FRONT SIDE FRONT

WOOD BLOCK DETAILS

WOOD POST AND

MIDWEST GUARDRAIL SYSTEM

NOTES:

Must be used with 6" height Type A dike.

line post sections of MGS.

This post and block combination used for standard

Dimensions shown for wood post are nominal.

All holes in wood posts and blocks shall be ¾" Dia ±?".

3"3"

3"3" 3"3"

A N

D A

7-1-25

NO SCALE

DEPARTMENT OF TRANSPORTATION

STATE OF CALIFORNIA

A77N1

3-31-27

Malik Rehman

September 19, 2025 C83390

1#10

1#20 1#30

State of California Drawings

Main Line Guardrail Parts

Attachment 2B 9706-TS-0328418-1c

Event ID: 0000039836

Walters, M Page 4 of 27 9/30/2026

DGS-PD_Engg Rectangle

STEEL POST AND BLOCK DETAILS

MIDWEST GUARDRAIL SYSTEM

See Note 6

See Note 4

See Notes 2, 3 and 7

4¼" ?"?"

12"

SEE NOTE 1

1?"

1¾"

6" x 12" block must be used with 6" Type A dike.

on post web with 2" letters using black acrylic paint.

narrow roadways. Post longer than 6' must be labeled

This post to be used for line post sections of MGS on

The 12" block is an option to the 8" block.

the metal beam guardrail element 8" from the post.

The standard block on W8 x 6.5 or W6 x 9 steel post separates

See Standard Plan A77N3.

6'-0" length posts to be used for typical roadway installation.

Notched face of block faces steel post.

Dimensions shown for wood block are nominal.

All holes in steel post shall be ?" Ø maximum.

BOLT HOLE

¾" ± ?"

BOLT HOLE

¾" ± ?"

NOTES:

FRONTSIDE

TOP

FRONTSIDE

TOP

FRONTSIDEFRONTSIDE

TOP

STEEL POST

W6 x 8.5 OR W6 x 9

NOTCHED WOOD OR PLASTIC BLOCK

6" x 8"

NOTCHED WOOD OR PLASTIC BLOCK

6" x 12"

STEEL POST

W6 x 8.5 OR W6 x 9

PLANS APPROVAL DATE

No.

Exp.

R E

G I

S T

E R

G I

N E

E R

T A

TE OF CALIF

ORN

REGISTERED CIVIL ENGINEER

CIVIL

Dist COUNTY ROUTE

POST MILES

TOTAL PROJECT

SHEET

No.

TOTAL

SHEETS

THE STATE OF CALIFORNIA OR ITS OFFICERS

OR AGENTS SHALL NOT BE RESPONSIBLE FOR

COPIES OF THIS PLAN SHEET.

THE ACCURACY OR COMPLETENESS OF SCANNED

A N

D A

7-1-25

NO SCALE

DEPARTMENT OF TRANSPORTATION

STATE OF CALIFORNIA

A77N2

3-31-27

Malik Rehman

September 19, 2025 C83390

1#10

1#20

1#30

1#40

State of California Drawings

Main Line Guardrail Parts

Attachment 2B 9706-TS-0328418-1c

Event ID: 0000039836

Walters, M Page 5 of 27 9/30/2026

DGS-PD_Engg Rectangle

MWalters Sticky Note Accepted set by MWalters

MWalters Sticky Note Completed set by MWalters

MWalters Sticky Note None set by MWalters

MWalters Sticky Note Completed set by MWalters

DGS-PD_Engg Rectangle

DGS-PD_Engg Line

COPIES OF THIS PLAN SHEET.

THE ACCURACY OR COMPLETENESS OF SCANNED

A N

D A

See Note 4

#4 REINFORCING STEEL

?" Ø HOLE

1" Ø STUD

C-C

CLIP SPACING

ANCHOR ROD

¾" Ø CABLE

Not to be used for double anchors

SINGLE ANCHOR

DOUBLE ANCHOR RODS

ANCHOR Â

SLOTTED HOLES, Typ

?" x 1?"

1½" Ø EYE

U-Bolts of clip on short end of cable only

U-Bolts tightened to 50 ft/lb torque

END ANCHOR ASSEMBLY (TYPE CA)

METAL RAILING

MGS OR TBB

Wood post, MGS shown, details similar for Thrie Beam Barrier

1'-3"È

4½"4½"4½"

A p p r o x

2'-6"

1½" Ø EYES

1¼" Ø x 4'-6" Galv RODS

2" 2"

¼" Â

COVER

C O

V E

1'-0"È

2" Min

1'-4"1'-0"

2" 4"4"4" 2"

CABLE

ANCHOR

¾" Ø

6'-3" 6'-3"

SEE DETAIL B

2¼" 8½"

5½"

3'-1½"

3'-1½" 1'-0"

THREADED ENTIRE LENGTH

1" Á x 7" LONG STUD 1?" 5?"

ANCHOR PLATE DETAIL

END ANCHOR ASSEMBLY (TYPE CA)

ANCHOR RODS

SWAGED FITTING AND STUD

ANCHOR CABLE WITH

DETAIL D

DETAIL C

DOUBLE ANCHOR

OPTIONAL ENDS ON SINGLE ANCHOR ROD

ELEVATION

SECTION A-A

DETAIL A

ELEVATION

RETURN CAP (TYPE A)

CABLE CLIP CONNECTION

PLAN

DETAIL B

NOTES:

backside of line posts as shown in the plan view.

railing will not have a rail element or blockouts on anchor plate, anchor rod, and anchor cable. Single sided

Single sided railing installations require only one

Wire ties may be used to position anchor rods.

reinforcement when concrete is placed.

Anchor rod hooks to be in contact with anchor anchor plate if railing is curved.

runs of rail. Anchor cable may have angle point at

Anchor cable to be parallel to railing for straight see Standard Plan A78Q2.

For typical use of this type of end anchor, END CAP (TYPE TC) FOR SINGLE THRIE BEAM

END CAP (TYPE A) FOR SINGLE MGS OR

OR RETURN CAP (TYPE A) FOR DOUBLE MGS.

RETURN CAP (TYPE TA) FOR DOUBLE THRIE BEAM

TOTAL 8 BOLTS PER ANCHOR PLATE

?" Ø MACHINE BOLTS IN ?" Ø HOLES,

PLATES

ANCHOR

TO FIT

BLOCKS

TAPER

TO FIT

TAPER BLOCKS

OF ANCHOR CABLE

COINCIDE WITH AXIS

¼" WELD ALL AROUND

Â 3" x 2¾" x ½", FOR 1" Ø STUD

Hex NUT

NEUTRAL AXIS OF RAIL

FRONT FACE AT

AND CUT WASHER ON

?" Ø MACHINE BOLT

?" Ø BOLT

Hex NUT FOR

TYPE 2

AND

TYPE 1

ON NEUTRAL AXIS

FOR ?" Ø BOLT

IN ½" PLATE

1?" Ø HOLE

HOLE FOR ROD

CENTER 1?" Ø

Â ½" x 5" x 5"

1¼" Ø Galv ROD

CONNECTED

CABLE SWAGE

¾" Ø

Conc ANCHOR 1'-6" Min Dia

END OF ROD

ON THREADED

Hex HEAD NUT

SEE DETAIL A

CONNECTION,

CABLE CLIP

1½" Ø EYE, SEE NOTE 4

CJP WELD OR DROP-FORGED

1¼" Ø x 4'-6" Galv ROD WITH

SEE DETAIL D

#4, TOTAL 4,

TOTAL 2

#8 x 5'-4" LENGTH, FOR ¾" Ø CABLE, SEE DETAIL C

STANDARD SWAGED CONNECTION

Min Dia

1'-6"

0.108" NOMINAL THICKNESS

Min

M a x

MGS RAIL ELEMENT

7-1-25

PLAN

PLANS APPROVAL DATE

No.

Exp.

R E

G I

S T

E R

G I

N E

E R

T A

TE OF CALIF

ORN

REGISTERED CIVIL ENGINEER

CIVIL

Dist COUNTY ROUTE

POST MILES

TOTAL PROJECT

SHEET

No.

TOTAL

SHEETS

HOLE FOR ROD

CENTER 1?" Ø

Â ½" x 5" x 5"

NOTE:

MGS anchor.

and eye for double

Galv rods with hook

Use two 1¼" Ø

NO SCALE

DEPARTMENT OF TRANSPORTATION

STATE OF CALIFORNIA

A77T1

3-31-27

C83390

Malik Rehman

September 19, 2025

1#10

State of California Drawings

Main Line Guardrail Parts

Attachment 2B 9706-TS-0328418-1c

Event ID: 0000039836

Walters, M Page 6 of 27 9/30/2026

RUB RAIL

HINGE POINT

W6 X 8.5 OR

W6 x 9 x 6'-0" STEEL POST WITH BLOCK, Typ

W6 X 8.5 OR � W6 x 9 x 6'-0" STEEL POST -- ( W6 x 15 x 8'-0" WITHOUT BLOCK Typ, SEE NOTE 6

1w-

:::: STEEL POST

s,J.

110,f. 0

NOTES:

FLOWLINE OF DITCH

Dist COUNTY ROUTE

/f�f.;,'rl'OIL REGISTERED cfVIL ENGINEER

September 1 9, 2025

THE STATE OF CAUFORNIA OR ITS OFFICERS

Wt/§�1:1.l!t'd �8f/i-fl:f1J/'s�:::-o

COPIES OF THIS PLAN SHEET.

25' PARABOLIC FLARE.I

Typ

15:1 FLARE RATE,

SEE NOTE 2

1 . The buried end anchor for steep slopes (Type B-S) should be installed on a 2: 1 or steeper slope. Where slopes are 3: 1 to 2: 1 , use Buried End Anchor (Type B-F), see Standard Plan A77T2.

111 111

STANDARD

LINE POST, Typ

1'!.'' � HOLES

DETAIL A

SECTION A-A

EDGE OF SHOULDER

2. Top of guardrail elevation should be no greater than the dlfferentlol of a 1 0¼ shoulder grade, see Note 8.

MGS GUARDRAIL PAY LIMIT 50'-0" PAY LIMIT BURIED POST END ANCHOR CUT SLOPE

3. Maximum flare rote of guardrail from the shoulder to the flowline is 15: 1 based on ETW. Flore rote con be increased up to 1 0: 1 ofter crossing the ditch flowline.

RUB RAIL

11 i' II

I I SEE 11 111

1:1 NOTE 1

11 111 FLOWLINE I� j_l 111 OF DITCH I�

W6 X 9 X 8'-0" STEEL POST MAINTAIN Min 3'-0" POST EMBE□MENT

ELEVATION

(PROFILE ALONG RAIL)

W6 X 8.5 OR W6 X 9 STEEL POST

MAINTAIN M n 3 -0 POST EMBEDMENT

Ill Ill Ill Ill

:01: ::: Ill Ill

W6 ; 8.5 OR

W6 X 9 STEEL POST

WITHOUT BLOCK,

SEE NOTE 6

4. No Blocks on post where blocks ore in contact with soil.

5. W6 x 1 5 x 8'-0" steel anchor post and hardware may be shifted up to 3'- 1 ½" with minimum 1 2" cover and maintain minimum post spacing from end If authorized.

6. Do not place blocks on post where blocks ore in contact with sell.

7. Use standard guardrail elements with no blocks for rub rail.

8. Begin rub roil when the height of the guardrail is more than 34" above the ground directly below the rail. Holes cut through flange of steel post shol I be 3/4" ¢ and on the trolling side of post.

9. Continue rub rai I unti I the top of rub roi I is buried in the bocks I ope.

BURIED POST END ANCHOR (TYPE B-S)

W6 x 15 STEEL POST, SEE DETAIL A

1 O. On one way roadways at departure end, rub roi I may remain on traffic side of post.

DETAIL B

FOR HEIGHT

_s'f({ ii'ciri

�r,, -

18" Max, SEE

NOTES 8 AND 11

SECTION B-B

11. Rub roil shall be 6" minimum to 1 8" maximum above flowline to not restrict flow. Height will be determined by the Engineer.

,-----JJ------1" HS BOLT 2" LENGTH WITH

Hex NUT AND WASHER 1 2. Splice rub rail elements at posts using rail element splice detail and keep rub roil porol lel with MGS.

SEE NOTE 1

SECTION D-D

ANCHOR POST DETAIL

S = SHOULDER ELEVATION

G = S + H - (SLOPE X D)

H = 31" (MGS)

SECTION C-C

SEE DETAIL B

..,,.,__�_ G = TOP OF

GUARDRAIL

ELEVATION

I I

- -------- 1/- ---------

PERSPECTIVE

STATE OF CALIFORNIA

DEPARTMENT OF TRANSPORTATION

MIDWEST GUARDRAIL SYSTEM

LfBURIED POST END ANCHOR <TYPE B-S>

NO SCALE

A77T3

N N en

Cl)

-I ,..

C ,..

::D

"ti r,..

-I c.., 1#10

1#20

State of California Drawings

Main Line Guardrail Parts

Attachment 2B 9706-TS-0328418-1c

Event ID: 0000039836

Walters, M Page 7 of 27 9/30/2026

DGS-PD_Engg Rectangle

I·

RAIL ELEMENT LENGTH = 13'-6½" <;=

RAIL ELEMENTS SPLICED AT 12'-6" INTERVALS

3'-1½" ·1· 6'-3" ·1· 3'-1½"

It 3/," x 21/," BOLT SLOT

IN RAIL ELEMENT

RAIL ELEMENTS

It ¾" X 21/," BOLT SLOT

IN RAIL ELEMENT

3'-11/2" 6'-3" 3'-11/2"

RAIL ELEMENTS SPLICED AT 12'-6" INTERVALS

RAIL ELEMENT LENGTH = 13'-6½"

==>- PLAN

DOUBLE THRIE BEAM BARRIER (TYPE M)

3'-1½"

POST

RAIL ELEMENT

It ¾" x 21/2" BOLT SLOT

IN RAIL ELEMENT---�

6'-3" l

POST

3'-1½"

RAIL ELEMENTS SPLICED AT 12'-6" INTERVALS

RAIL ELEMENT LENGTH = 13'-6½"

PLAN <;=

SINGLE THRIE BEAM BARRIER (TYPE M)

POST

I I

ELEVATION

POST

I I

SINGLE/DOUBLE THRIE BEAM BARRIER (TYPE M)

Steel post with notched wood or notched plastic blocks.

·I

TOP OF RAIL