attachment-2-bid-94-26.pdf

NOT BE LESS THAN ROOT DIAMETER OF THREADS.

SHALL NOT BE LESS THAN NOMINAL DIAMETER. IF ROLLED THREADS ARE USED, ROD DIAMETER SHALL

12. THREADS FOR ANCHOR RODS MAY BE ROLLED OR CUT. IF CUT THREADS ARE USED, BOLT DIAMETER

PIPE SPACERS, ALL APPURTENANCES, AND GALVANIZING.

PREFORMED PADS, RAIL ASSEMBLY BOLTS, NUTS, WASHERS, STUDS STRUCTURAL TUBING, SPLICE BARS,

3. ITEM 563.23, BRIDGE RAIL T3, SHALL INCLUDE POSTS, BASE PLATES, ANCHOR PLATES, ANCHOR RODS, OVER 5% WHERE POSTS SHALL BE SET VERTICAL.

4. BRIDGE RAIL POSTS SHALL BE SET NORMAL (90 DEGREES) TO THE PROFILE GRADE, EXCEPT ON GRADES

CUT EDGES OF ALL MATERIAL SHALL BE GROUND SMOOTH.

5. ENDS OF RAIL TUBE SECTIONS SHALL BE SAWED OR MILLED AND SHALL BE TRUE AND SMOOTH. ALL

6. EACH PIECE OF RAIL TUBING SHALL BE ATTACHED TO A MINIMUM OF THREE (3) POSTS.

IF MECHANICALLY GUIDED.

7. BOLT HOLES SHALL BE DRILLED OR PUNCHED. FLAME CUTTING MAY BE USED TO FINISH SLOTTED HOLES

TIGHTENED TO A SNUG FIT AND GIVEN AN ADDITIONAL 1/8 TURN.

THREADED ANCHOR RODS CONNECTING THE BASE PLATE TO THE CONCRETE SHALL BE Ø11. NUTS FOR 1"

RAIL NOTES

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

(SEE SECTION 563.3.2.1).

" WALL TUBES AND SHALL BE SHOP FORMED TO THE REQUIRED CURVATURE 8

USED ON CURVES SHALL USE

9. MILL OR SHOP TRANSVERSE WELDS SHALL NOT BE PERMITTED ON ANY RAIL ELEMENT. RAIL ELEMENTS

ORIGINAL COATING, ACCORDING TO SECTION 550.2.9.1 AND ASTM A780.

GALVANIZING REPAIR PAINT, HAVING A MINIMUM 92% ZINC BY WEIGHT, TO A THICKNESS EQUAL TO THE

SHALL BE THOROUGHLY CLEANED, PRETREATED, AND PAINTED WITH TWO COATS OF ORGANIC ZINC-RICH

AS ALLOWED IN DETAIL A, AND FOR INSTALLATION OF DELINEATORS. DAMAGED AREAS OF GALVANIZING

10. NO PUNCHING, DRILLING, CUTTING OR WELDING SHALL BE PERMITTED AFTER GALVANIZING, EXCEPT

THE TUBES. CHARPY V-NOTCH IS NOT REQUIRED FOR SPLICE TUBES.

15 FT-LBS AT 0°F. FOR ASTM A500, GRADE B, THE TEST SAMPLES SHALL BE TAKEN AFTER FORMING

STEEL TUBING. RAIL TUBING SHALL MEET THE LONGITUDINAL CHARPY V-NOTCH REQUIREMENTS OF

13. STRUCTURAL TUBING SHALL CONFORM TO THE REQUIREMENTS OF ASTM A500, GRADE B, STRUCTURAL

EXCEPT ANCHOR PLATES MAY BE ASTM A36.

14. RAIL POSTS AND BASE PLATES SHALL CONFORM TO THE REQUIREMENTS OF ASTM A572 GR 50,

17. PREFORMED BEARING PADS (1/8" THICK) SHALL CONFORM TO AASHTO M251.

MATERIAL NOTES

BRIDGE CONSTRUCTION (DL-1) FOR ADDITIONAL DETAILS AND SPACING.

GALVANIZING TOUCH-UP, SHALL BE SUBSIDIARY TO ITEM 563.23. SEE STANDARD PLANS FOR ROAD AND

18. RETROREFLECTIVE DELINEATORS, BOLTS, NUTS, WASHERS AND FIELD DRILLING OF POSTS, INCLUDING

SEE SPECIAL PROVISIONS FOR 708.

APPEARANCE AND GALVANIZED MATERIAL SHALL BE PROPERLY STORED. IF PAINTING IS REQUIRED

KETTLE SHALL HAVE 0.05 TO 0.09 PERCENT NICKEL. GALVANIZED SURFACES SHALL HAVE A UNIFORM

COMPLIANCE WITH AASHTO M232 (ASTM A153) AND AASHTO M111 (ASTM A123). THE GALVANIZING

16. ALL STEEL COMPONENTS (EXCEPT STAINLESS) SHALL BE GALVANIZED AFTER FABRICATION IN

ANCHOR RODS SHALL CONFORM TO ASTM A449.

TYPE A PLAIN WIDE WASHERS AND SHALL MEET THE DIMENSIONAL REQUIREMENTS OF A.N.S.I. B18.22.

BE USED ON THE BOTTOM OF ANCHOR ASSEMBLY. WASHERS SHALL BE HARDENED STEEL COMMERCIAL

ASTM A307 AND ASTM 563 GRADE A RESPECTIVELY OR BETTER, EXCEPT THAT ASTM A307 NUTS MAY

15. DETAIL A BOLTS SHALL BE ASTM A325 OR A449. ALL OTHER BOLTS AND NUTS SHALL CONFORM TO

SHALL RECEIVE THE SAME TREATMENT.

USED ON BOTH SIDES OF THE SPLICE TO ALLOW MOVEMENT ON EACH SIDE. ALL RAILS IN A SPLICE

MOVEMENT ON THAT SIDE. AT EXPANSION SPLICES, AND AT AT END SPLICES, PIPE SPACERS SHALL BE

8. AT INTERIOR SPLICES, PIPE SPACERS SHALL BE USED ON ONLY ONE SIDE OF THE SPLICE TO ALLOW

ACCEPTED AS NCHRP 350 TL-4 (FHWA LETTER: HMHS-B50, MARCH 1999).

SAME GEOMETRICS AS T2 WITH AN ADDED 4-IN TOP RAIL. T2 WAS CRASH TESTED (NETC 1994) AND

JUNE 2022. HAS THE"IN-SERVICE PERFORMANCE EVALUATION OF NETC BRIDGE RAILING", (29 YEARS):

(NETC), APRIL 2020. FIELD PERFORMANCE CRASHWORTHINESS BRIDGE RAIL AND TRANSITION DETAILS"

"DEVELOPEMENT OF MASH COMPUTER SIMULATED STEEL2. MEETS MASH TL-4 BY LS-DNYA SIMULATION:

SPLICE BAR DIMENSION TABLE

** = END SPLICE BAR

T = TOTAL MOVEMENT OF BRIDGE

"4

" < T = 54

INTERIOR

** "4

= 3

4"

4"

5"

4"

4"

5"

2"

2"

"4

2"

3"

1'-8"

1'-8"

2'-1"

T A B C D X L

WITHIN THE SHEET AND NOTED AS THE DESIGNER IN THE TITLE BOX OF THE SHEET.

(EOR) FOR THOSE DETAILS AND ALL EFFECTS THE MODIFICATIONS HAVE ON OTHER COMPONENTS

THE ENGINEER RESPONSIBLE FOR THE MODIFICATIONS BECOMES THE ENGINEER OF RECORD

AND FHWA. IF ANY MODIFICATIONS ARE MADE TO THE DETAILS OTHER THAN NOTED BELOW,

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

TO CONCRETE ON RAIL ELEVATION.

1. POST SPACING; DISTANCE FROM LAST POST

WILL BE USED.

SCREENING AND/OR PROTECTIVE SCREENING

2. ITEM NUMBER AND DESCRIPTION IF SNOW

GREATER THAN 3'-6".

REQUIRED FOR DECK OVERHANG DISTANCE

3. DESIGN OF DECK OVERHANG REINFORCING IS

"L" (END SPLICE BAR)

(TYP)

� RAIL POST

(TYP)

"X" @ 45°F AT EXPANSION SPLICE

(TYP)

PROVIDE

2" Ø DRAIN HOLES

IN LOW END OF ALL RAILS

7" CURB

REVEAL

SCALE:

RAIL ELEVATION

(SPLICE BAR)

� SPLICE

4" @ 45°F AT INTERIOR RAIL SPLICES

BRIDGE APPROACH RAIL T3

(TYP)

PAY LENGTH OF BRIDGE RAIL T3, ITEM 563.23

XX SPACES @ X'-X" (8'-0" MAXIMUM) = XX'-X"

(± 3")

X'-X"

(± 3")

X'-X"

(± 3")

1'-6"

1'-8"

X'-X"

(MIN.

1'-6")

4" Ø PIPE SPACER

2" LONG (GALV.)

(1.050" O.D., 0.824" I.D.)

SCALE: 6" = 1'-0"

SPLICE BOLT DETAIL

8" x 1

4"

A307 CAP SCREW

LOCK NUT

(OUTER HOLES ONLY)

TACK WELD

STANDARD

WASHER

6"

4" DIA

8" SLOT

8" MAX

8"

8"

SLOT OR

WRENCH HEAD

SCALE: 6" = 1'-0"

A325 ROUND HEAD BOLT DETAIL

1" POST BASE PLATE

FACE OF RAIL

8" BEARING PAD

FACE OF CURB

HSS 4x4x

(SEE NOTE #9)

HSS 8x4x

(SEE NOTE #9)

HSS 4x4x

(SEE NOTE #9)

 RAIL

W6x25 RAIL POST

(TAPER ALL POST

TOPS AS SHOWN)

16" Ø HOLE FOR

8"

BOLT FAR SIDE

(FRONT)

RETROREFLECTIVE

DELINEATOR

� 1 8"x 1

8"

SLOTTED HOLES IN POST

INSTALL TWO BOLTS

(4 SLOTS IN POST

FLANGE OPTIONAL)

SECTION VIEW

 EXT

GIRDER OR STRINGER

3'-6" (MAXIMUM DECK OVERHANG)

MAIN REINFORCING REQUIRED SHALL BE

#5 BARS @ 6" MINIMUM TOP & BOTTOM (CIP)

2-#5 BARS BUNDLED @ 6" MIN. TOP (PRECAST PANELS)

(MINIMUM As = 1.24 SQ. INCH/FT)

#5

BARS *

#5 HOOP

BAR *

1" Ø

ANCHOR

RODS

* REINFORCING CAPACITY

SHALL MEET OR EXCEED

THAT SHOWN

7 #5 HOOP BARS @ 6"± = 3'-0" ±

CENTERED ABOUT � RAIL POST ±6" *

SCALE: 1

POST ASSEMBLY

BACK ELEVATION VIEW

SEE DETAIL A

2'-0"

1'-6"6"

"8

64"

"8

7"8

610"

COPING

2"

"8

(TYP)

"4

"8

R E

V E

A L

2"

RETROREFLECTIVE

DELINEATOR

(SEE NOTE #18)

4 #5 BARS *

L

D C B B C D

LOCK NUT AT

OUTER HOLES

� SPLICE BAR

SPLICE BAR

8" X "A" SLOTTED HOLES IN RAIL TUBE

8" TAPPED HOLES IN SPLICE BAR

2" Ø

DRAIN HOLE

C

C

SCALE: 1

RAIL SPLICE (BOTTOM VIEW)

2"

"X"

ANCHOR PLATE

STANDARD STEEL HEX NUTS

TYPICAL @ ANCHOR PLATE

TOP OF

CONCRETE

SCALE: 1

POST ANCHOR ASSEMBLY

STEEL HEX NUTS &

1" Ø STANDARD WASHERS

1" Ø - 8 THREAD BY

(TYPICAL BOTH ENDS)

� - 1" Ø ANCHOR

RODS

"8

SCALE: 1

POST BASE PLATE

W6 x 25

1"x 10"x 1'-2"

BASE PLATE

4" Ø HOLES

(TYP)

"16

1"8

6"16

10"

SCALE: 1

ANCHOR PLATE

FACE OF

RAIL

� 1

16" Ø HOLES

(TYP)

8" PLATE

4" Ø

HOLE

"8

"8

"2

1 "2

1"8

A

� POST

4" Ø ROUND HEAD BOLTS & NUTS

(ASTM A325) (SEE DETAIL)

� RAIL

SCALE: 3" = 1'-0"

SECTION A-A

SCALE: 3" = 1'-0"

DETAIL A

TYPE A WIDE PLAIN WASHER

(NOMINAL

16" I.D., 2" O.D., 32" THICK)

8" Ø HOLE IN RAIL (TYP)

(HOLES MAY BE FIELD DRILLED,

AND SHALL BE ZINC COATED PER

NOTE #8 PRIOR TO ERECTION)

� RAIL

A

DELINEATOR MOUNTING

8" BOLT,

NUT & WASHER

POST FLANGE

16" Ø HOLE

(FIELD DRILLED)

NOT TO SCALE

SCALE: 3" = 1'-0"

RAIL SPLICE DETAILS

SPLICE BAR SECTIONSECTION C-C

ACCOUNT FOR WELD FLASH

WHILE POSITIONING SPLICE

BAR INSIDE OF RAIL

SEE SPLICE BOLT DETAIL

AND NOTE #6

HSS 8x4x

HSS 4x4x

HSS 7x3x

HSS 3x3x

4"

8" Ø

TAPPED HOLE

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-RAIL

.DGN LOCATOR

T3 STEEL BRIDGE RAIL

XX

NHDOT

JSZ 10/05

XX/XXXXXXX/XXXXX

PJP 10/05

3/02NETC/JSZ

AS NOTED 12/2024

11/15/05

N26ADH

Callout T3 Bridge Post

N26ADH

Callout T3 Splice Bar

N26ADH

Callout T2-4 Anchor Assembly