attachment-3-bid-94-26.pdf

T Y

P

2"

SCALE: 1

SIDE VIEW

RAIL POST (W6x25)

FRONT VIEW

� RAIL POST

INSTALL TWO BOLTS

(4 SLOTS IN POST

FLANGE OPTIONAL)

� 1 8"x 1

8"

SLOTTED HOLES

V A

R

IE

S

V

A R

IE

S

"8

6 "8

(TYP)

"4

2"

TAPER ALL

W6X25 TOPS

AS SHOWN

* 1"x 1"x 8"

TAB (TYP)

16"

SCALE: 1

END CAP DETAILS

ROUND CORNERS

16" PLATE

** 7

8" HSS8

2" HSS4

* WELD TABS TO END CAP PLATE

IN TAPERED POSITION SO CAP

CAN BE JAMMED INTO END OF

RAIL TUBE

** SEE RAIL NOTES ON BRIDGE

RAIL SHEET

H

S S

H

S S

4"

** 3

8" HSS8

** 3

2" HSS4

1" Ø HOLES

(TYP)

4" Ø HOLES

(TYP)

SCALE: 1

CONNECTION PLATE

CLIP

1"x 1"

8" STEEL (GR 36)

CONNECTION PLATE

(GALVANIZED)

4"4"

"4

3"4

1'-08"3"

2'-3"

3"

SCALE: 1

SECTION B-B

(CONNECTION PLATE)

TOP RAIL

8" CONNECTION

PLATE

16"

16"

8"

8"

16"

16"

16"

8"

8"

4"

10 GAGE PLATE OF

THRIE-BEAM TERMINAL

CONNECTOR

OUTLINE OF

TERMINAL

CONNECTOR BOTTOM RAIL

4" Ø A307

CARRIAGE BOLT

(TYP)

TOP RAIL

OVERLAPPING OF DOUBLE NESTED

THRIE-BEAM NOT SHOWN FOR CLARITY

SCALE: 1

DETAIL A

B

B

OUTLINE OF

TERMINAL CONNECTOR

� W6x25

BOTTOM

RAIL

CONNECTION PLATE

RAIL SLOPE SET

AT BOLT LINE

4" Ø HOLES AT FRONT

FACE OF W6x8.5 POST (TYP)

END OF

CONNECTION

PLATE

� W6x8.5 (POST)

& SYNTHETIC

OFFSET BLOCK

4" Ø A307

CARRIAGE BOLTS

4"4"

"4

4 "4

1'-1

"8

2"8

1'-18"3"

"8

2'-5

SEE RAIL

POST DETAIL

SEE BRIDGE RAIL SHEET FOR

RAIL ATTACHMENT METHOD (TYP)

LAP SECTIONS

IN DIRECTION OF TRAFFIC

W-BEAM GUARDRAIL (12 GAGE) (ROADWAY ITEM)

(6'-3" POST SPACING TYPICAL)

8'-5 4"

SLOPE

DETAIL A

8'-8" POST

LENGTH (TYP)

SCALE:

4" = 1'-0"

ELEVATION - APPROACH RAIL

16"

MIDDLE RAIL 4

16"

BOTTOM RAIL 1

4"

ALL RAILS

(ONE PIECE)

2'-11"

A

A

2'-10"

2'-10"

FACE OF RAIL CONNECTION PLATE

(GALVANIZED)

CURB LINE

PLAN VIEW - APPROACH RAIL

W-BEAM GUARDRAIL (12 GAGE) (ROADWAY ITEM)

FLARE BACK W-BEAM GUARDRAIL AT 80:1 FOR

25'-0" TO RESTORE RAIL-TO-RAIL WIDTH

UNLESS DIRECTED OTHERWISE

SCALE:

4" = 1'-0"

7" REVEAL

7" REVEAL

1" (TYP)

FLARED @ 10:1

4" REVEAL

END CAPS (GALVANIZED)

(TYP)

W6 x 8.5 POST (TYP)

LEVEL

1" (TYP)

SYNTHETIC OFFSET BLOCK (TYP)

8" DEEP (NOMINAL) x 1'-10" LONG

SYNTHETIC OFFSET BLOCK FOR TRANSITION SECTION

8" DEEP (NOMINAL) x 1'-6" LONG

PAY LIMITS ITEM 565.232, BRIDGE APPROACH RAIL T3 (STEEL POSTS), (APPROXIMATE LENGTH = 29'-2")BRIDGE RAIL T3

2'-7"

SPLICE BARS (TYP)

(PAID UNDER APPROACH RAIL UNIT)

(SEE NOTE #6)

SYNTHETIC OFFSET BLOCK

FOR W-BEAM GUARDRAIL

(TYP)

(DO NOT BEND)

MORTAR JOINT

(SEAL WITH

ITEM 562.1)

1'-8" OR L

1'-6" ± 3"X'-X"

(W-BEAM TO THRIE BEAM) (10 GAGE)

6'-3" TRANSITION SECTION

DOUBLE NESTED 12 GAGE THRIE BEAM (12'-6")

"8

2'-5

3 SPACES @ 2'-2" = 6'-6"

(3'-0" - 5'-6" MAX)

X'-X"

PLATE

CONNECTION

TERMINAL CONNECTOR

THRIE BEAM

"2

3'-1"2

" = 9'-44

6 SPACES @ 1'-6

6'-3""2

3'-1"2

3'-1

SECTION

FLARED

(DO NOT BEND)

32'-6" OF STRAIGHT GRANITE CURB (ITEM 609.01)

SCALE:

4" = 1'-0"

SECTION A-A (POST RAIL ASSEMBLY)

VARIES

X

8" Ø A307 B.H.

SPLICE BOLT (TYP)

1"

FINSIHED GRADE SHALL BE

LEVEL WITH TOP OF CURB

SYNTHETIC

OFFSET BLOCK

W6 x 8.5

APPROACH

CURB*

8" Ø

2" A307

BUTTON HEAD BOLT (TYP)

SEE GENERAL

PLANS*

WEARING

COURSE*

HBP*

CRUSHED GRAVEL*

PAY LIMITS

COMMON EXCAV.*

DOUBLE RECESSED NUT

W/ ROCK WASHER (TYP)

2'-6"

"4

* SEE BRIDGE APPROACH CURB DETAIL SHOWN

ELSEWHERE IN THE CONTRACT PLANS.

NOTES:

PENETRATION BUTT WELD (B-U2).

6. WELD BARS ADJUSTED FOR SLOPE & BEND. USE COMPLETE JOINT

606 OF NHDOT SPECIFICATIONS.

7. ALL COMPONENTS, EXCEPT TUBULAR RAIL, SHALL CONFORM TO SECTION

NOTED. SEE BRIDGE RAIL SHEET FOR NOTES AND ADDITIONAL INFORMATION.

SHALL BE THE SAME AS THOSE OF THE BRIDGE RAIL, UNLESS OTHERWISE

3. ALL BRIDGE APPROACH RAIL MATERIALS, DIMENSIONS,SIZES, AND NOTES

GRADE A OR BETTER (GALVANIZED).

5. CARRIAGE BOLTS SHALL BE ASTM A307, AND NUTS SHALL BE ASTM A563

W6 x 8.5 POSTS SHALL BE THE SAME AS W-BEAM GUARDRAIL POSTS.

4. W6 x 25 POSTS SHALL BE THE SAME MATERIAL AS THE BRIDGE RAIL POSTS.

1. FOR USE ON ALL INTERSTATE, STATE, AND LOCAL ROADS.

NCHRP 350 TL-4 (FHWA LETTER: HSSD/B-146, JULY 2008).

JUNE 2022. CRASH TESTED (NETC 2005) AND ACCEPTED AS RAILING",

"IN-SERVICE PERFORMANCE EVALUATION OF NETC BRIDGE (29 YEARS):

(NETC), APRIL 2020. FIELD PERFORMANCE CRASHWORTHINESS DETAILS"

MASH COMPUTER SIMULATED STEEL BRIDGE RAIL AND TRANSITION

"DEVELOPEMENT OF 2. MEETS MASH TL-4 BY LS-DNYA SIMULATION:

IN THE TITLE BOX OF THE SHEET.

THE MODIFICATIONS HAVE ON OTHER COMPONENTS WITHIN THE SHEET AND NOTED AS THE DESIGNER

FOR THE MODIFICATIONS BECOMES THE ENGINEER OF RECORD (EOR) FOR THOSE DETAILS AND ALL EFFECTS

IF ANY MODIFICATIONS ARE MADE TO THE DETAILS OTHER THAN NOTED BELOW, THE ENGINEER RESPONSIBLE

THIS SHEET IS BACKED BY CRASH TESTING AND APPROVED BY THE NHDOT ADMINISTRATORS AND FHWA.

1. DISTANCE FROM LAST BRIDGE POST TO 1ST APPROACH POST.

10 GAGE

4"x

2"

SLOTTED HOLES

1"x 2" DIAGONAL

SLOTTED HOLES

SCALE: 1" = 1'-0"

THRIE-BEAM TERMINAL CONNECTOR

C

C

SCALE: 1" = 1'-0"

VIEW C-C

9 - 1" Ø HOLES FOR

4" Ø A307 CARRIAGE

BOLTS (TYP)

"8

7 ( T

Y P

T

Y P

3""4

4"4

44"

"4

1'-08"2"

2'-6"

3"

SCALE: 1" = 1'-0"

x

F O

R

Ø

B U

T T

O N

H E

A D

B O

L T

S x

S

L O

T S

S

L O

T S x

S

L O

T S

THRIE-BEAM TO W-BEAM TRANSITION SECTION

" (10 GAGE)2

7'-3

"4

4"4

4 2"

2" MIN

2" MIN2" "4

4"4

6'-3"

"2

3'-1"2

3'-1

"4

"4

STATE OF NEW HAMPSHIRE

DEPARTMENT OF TRANSPORTATION * BUREAU OF BRIDGE DESIGN

BRIDGE NO. STATE PROJECTTOWN

LOCATION

REVISIONS AFTER PROPOSAL

SHEET SCALE

DESIGNED

DRAWN

QUANTITIES

REV. DATE

ISSUE DATE FEDERAL PROJECT NO. SHEET NO. TOTAL SHEETS

FILE NUMBER

OF

BRIDGE SHEET

DATEBY

CHECKED

CHECKED

CHECKED

DATEBY

SUBDIRECTORY

BR-RAIL-ST T3 BR-APP-RAIL

.DGN LOCATOR

T3 STEEL BR APP RAIL (STEEL POSTS)

XX

NHDOT

JSZ 10/05

XX/XXXXXXX/XXXXX

PJP 10/05

3/02NETC/JSZ

AS NOTED 12/2024

11/15/05

N26ADH

Text Box This sheet is the T3 Approach Unit.