J2_1240LU24Q0059StandardBdgDrawingsUPDATEDAmendment001.pdf
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- Solicitation number
- 1240LU24Q0059
- Issued by
-
Department of Agriculture Forest Service
About this file
This document contains drawings and technical specifications for a 41-ft glulam stringer pack/pedestrian trail bridge to replace an existing 35-ft single log foot bridge over Little Rock Creek on Forest Service Trail #580 in Montana. The project includes removing the existing bridge, constructing the new 41-ft bridge, and associated trail approach work, footings, and drainage improvements. The project is located on the Bitterroot National Forest, approximately 3 miles west of the Lake Como Recreation Area. The period of performance is 60 days, anticipated to begin on September 15, 2025 and be completed by November 14, 2025. The magnitude of construction is between $100,000 and $250,000. The drawings provide detailed technical specifications for the bridge components, including glulam stringers, deck planks, railings, diaphragms, and substructure.
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STRINGERS DECK BACKWALL
STRUCTURE TRAIL BRIDGE BRIDGE STRINGER BRIDGE PEDESTRIAN GROUND COMBINATION SPECIES MATERIAL TREATMENT SPECIES SIZE TREATMENT TYPE SPECIES SIZE WIDTH HEIGHT TREATMENT
NUMBER NUMBER LOCATION LENGTH SPAN CLEAR LOAD SNOW LOAD SYMBOL SIZE
OUT-TO-OUT CL TO CLBRNG WIDTH
NO YES
United States Department of Agriculture Forest Service
R06
PACIFIC NORTHWEST REGION
NA = NOT APPLICABLE
RAILING SYSTEM/CURB RUNNING PLANK SILL APPROACHES HARDWARE
COMMENTS
STAMPS, LOGOS, AND SEALS
STRUCTURE SPECIES TYPE HEIGHT NUMBER
TREATMENT
SPECIES SIZE WIDTH
TREATMENT
TYPE
MATERIAL SIZE TREATMENT TYPE
LENGTH
WIDTH
MATERIAL
TYPE
MATERIAL
DEPTH
GEO-
SYNTHETIC COATING
YES NO NEAR FAR
YES
ABUTMENT MATERIAL TYPE: SS = SOLID SAWN, GLU = GLULAM, CONC = CONCRETE
HARDWARE COATING TYPE: GALV = GALVANIZED, UNC = UNCOATED, WEA = WEATHERING STEEL
TYPE
APPROACH FILL 1
RAILING SYSTEM
PROJECT NAME
GLULAM
STRINGER TRAIL
BRIDGE
REGIONAL STANDARD
R6-STD-963-10
BACKWALL
DECK PLANKS
DIAPHRAGM SEE
SHEET 3 FOR
DETAILS
GLULAM
STRINGER
DRAWING TITLE
GLULAM STRINGER
BRIDGES
PLANNING SHEET
APPROACH NOT SHOWN FOR CLARITY BEARING SHOE
TRAIL BRIDGE W/RAILING SYSTEM
DATE ARCHIVE NO.
DESIGNER DRAWING SHEET NO.
SILL
SEE SHEET 5
FOR DETAILS
Digitally signed by CHRISTY
CHRISTY DARDEN DARDEN
Date: 2021.02.02 11:03:11 -08'00'
APPROVED BY: R6 DIRECTOR OF ENGINEERING
K.VAN HECKE
DRAWN
S.WEISNER
CHECKED
E.ANTRIM
PROJECT NO. SHEET 01 OF
1/
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580 2.87 41' 40' 8' 90 lbs/SF 70 lbs/SF 20F-V13 AC 5 1/8 x 24 NO AC 3" x 12" SS DF/L 12' 3'
AC RAIL 3' 8" DF/LX 2" x 12" 6' DF/L 12" x 12"NA 18' 24' 8' BORROW < 32" NA GALV
3" x 12"580-2.87
580-2.87 *
* See Little Rock Creek Trail Bridge Replacement plans for substructure and trail details. Any discrepancies between these drawings and the Little Rock Creek Trail Bridge Replacement plans shall be clarified with the CO prior to implementation.
ABUTMENT
VARIES
2'-6"
MAXIMUM
1 12 "
POSTS @ 5' - 0" MAXIMUM
RAIL CAP (SHOWN DASHED) 5" RINGSHANK NAILS SEE
NOTES FOR SPACING
7" RINGSHANK NAILS
ABUTMENT
VARIES
2'-6"
MAXIMUM
3" X 6" BACKING PLANK STIFFENER ATTACH W/(2)-1/2"Ø
BOLTS W/(2)-MALLEABLE IRON WASHERS PER BACKING
PLANK SPACED DIAGONALLY FROM EACH OTHER
2" X 6" S4S RAIL, FASTEN RAILS TO
POSTS W/(2)-#10 X 4" WOOD
SCREWS AT EACH CONNECTION
4" X 6" POST FABRICATE
30°
CLEAR WIDTH
STRUCTURE
2" X 8" MINIMUM
RUNNING PLANKS
3'-8"
2" X 8" S4S RAIL CAP
FASTEN TO EACH
POST AND TO RAIL
W/(2)-#10 X 4" WOOD
SCREWS AT 2'-0" ON
CENTER
10 3/4"
(TYP)
United States Department of Agriculture Forest Service
R06
PACIFIC NORTHWEST REGION
℄ STRUCTURE W/TAPERED END (TOP) AND
W/(2)-13/16"Ø HOLES AT BOTTOM
2" X 12" SHOWN
2"
STAMPS, LOGOS, AND SEALS
4" X 8" MINIMUM DECK PLANKS (4" X 12" SHOWN)
ABUTMENT
6"
ADJUST DIAPHRAGM
LOCATION AS REQUIRED
TO AVOID POST BOLTS
4" x 12" DECK PLANKS SHOWN (3" X 12" OR 4" X 8" ALSO ACCEPTABLE) MAINTAIN 3/8" ± GAP BETWEEN PLANKS
PLAN VIEW
STRINGER LENGTH OUT - OUT AND RAILING SYSTEM
STRINGER SPAN (℄ BEARING - ℄ BEARING
RAILING SYSTEM SEE
THIS SHEET FOR DETAILS
ABUTMENT
6"
5/8"Ø BOLT X (VERIFY LENGTH) W/NUT AND
(2)-OVERSIZED MALLEABLE IRON WASHERS
4" X 6" X 1'-2" S4S BLOCKING
3 1/2"
2" X 6" X 4'-6" VERTICAL END
SUPPORT FOR RAILS (TYP)
(2)-16d NAILS INTO EACH RAIL
STRINGER
SPACE @ 4'-0"
MAXIMUM
SIZE PER TABLE - 1A
STRINGER
3 1/2"
DIAPHRAGM, SEE
SHEET 3a FOR DETAILS
PROJECT NAME
W/(2)-3/8"Ø X 3 1/2" LAG
SCREWS AT BASE
BRIDGE W/RAILING SYSTEM
DECK SECTION W/STRINGERS @ 4'-0" O.C.
GLULAM
STRINGER TRAIL
BRIDGE
STEEL OR TIMBER
DIAPHRAGM (TYP) SEE
DETAILS ON SHEET 3a
SUBSTRUCTURE SHOWN
FOR ILLUSTRATION ONLY
SEE SHEET 4 FOR DETAILS ELEVATION VIEW
4" x 6" POST (TYP)
POSTS SHALL BE
VERTICAL
GLULAM TIMBER
STRINGER PER
TABLE - 1A
NOTE: RAILING SYSTEM INCLUDED IN DESIGN AS
40 PLF DEAD LOAD, EACH SIDE. OTHER RAILING
SYSTEMS ALLOWABLE WITHIN THIS DEAD LOAD
LIMIT, IN ACCORDANCE WITH REGIONAL
STANDARDS OR WITH APPROVAL OF THE
REGIONAL BRIDGE ENGINEER.
REGIONAL STANDARD
R6-STD-963-10
GRADE SHOWN = 0.0%
NOTES:
- FABRICATE GLULAM STRINGERS WITH CAMBER BASED ON A 900 FOOT RADIUS.
- RUNNING PLANKS NOT SHOWN FOR CLARITY.
*TABLE - 1A: 2 GLULAM STRINGER SIZE REQUIREMENTS - LRFD - MAXIMUM SPACING 4'-0"
DRAWING TITLE
1. FASTEN DECK PLANKS TO STRINGERS WITH TWO ROWS 5/16-INCH DIAMETER X 7-INCH RING SHANK
NAILS PER PLANK AT EACH STRINGER. ALTERNATE SIDES.
2. FASTEN RUNNING PLANKS TO DECK WITH 40d (5-INCH RING SHANK) NAILS AT 24-INCH SPACING.
ALTERNATE SIDES WITH TWO AT EACH END.
3. SPLICE RAILS AT POSTS. RAILS SHALL BE CONTINUOUS FOR TWO POST SPACES. DO NOT LOCATE
MORE THAN ONE RAIL SPLICE AT ANY ONE POST.
2 GLULAM STRINGR
DESIGN TABLE AND
DETAILS
INSTALL DIAPHRAGMS AT MID-SPAN AND WITHIN A DISTANCE OF THE DEPTH FROM THE ABUTMENTS
INSTALL DIAPHRAGMS AT THIRD POINTS OF SPAN AND WITHIN A DISTANCE OF THE DEPTH FROM THE ABUTMENTS
INSTALL DIAPHRAGMS AT QUARTER POINTS OF SPAN AND WITHIN A DISTANCE OF THE DEPTH FROM THE ABUTMENTS
DATE
DESIGNER
ARCHIVE NO.
DRAWING SHEET NO.
SELECT STRINGER SIZE AS THE LARGER OF THE PEDESTRIAN OR GROUND SNOW LOAD SIZE REQUIRED FOR THE SITE CONDITIONS
STRINGER LENGTH EQUAL TO STRINGER SPAN PLUS ONE FOOT
REQUIRES REGIONAL BRIDGE ENGINEER APPROVAL LOAD COMBINATIONS: 1.25 DL + 1.75 PL 1.25 DL + 1.75 SL
DEFLECTIONS: PL = L/360, TL = L/240 SL = L/240, TL = L/180
PL = PEDESTRIAN LOAD, DL = DEAD LOAD, SL = SNOW LOAD
K.VAN HECKE
DRAWN
S.WEISNER
CHECKED
E.ANTRIM
PROJECT NO. SHEET 02 OF
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** STRINGER
SPAN (FEET)
SPECIES - AC / AC, COMBINATION SYMBOL 20F - V13
DESIGN LOADING IN POUNDS PER SQUARE FOOT
PEDESTRIAN LIVE LOAD GROUND SNOW LOAD
***65 90 150 200 300 400 500 600
25 5 1/8" x 13 1/2" (4) 5 1/8" x 15" 5 1/8" x 16 1/2" 5 1/8" x 18" 5 1/8" x 21" 5 1/8" x 25 1/2" 5 1/8" x 28 1/2" 5 1/8" x 31 1/2"
30 5 1/8" x 16 1/2" 5 1/8" x 18" 5 1/8" x 19 1/2" 5 1/8" x 22 1/2" 5 1/8" x 28 1/2" 5 1/8" x 34 1/2" 6 3/4" x 30" 6 3/4" x 33"
35 5 1/8" x 19 1/2" 5 1/8" x 19 1/2" 5 1/8" x 22 1/2" 5 1/8" x 25 1/2" 5 1/8" x 31 1/2" 6 3/4" x 31 1/2" 6 3/4" x 36" 6 3/4" x 39"
40 5 1/8" x 22 1/2" 5 1/8" x 24" 5 1/8" x 27" 5 1/8" x 31 1/2" 6 3/4" x 33" 6 3/4" x 37 1/2" 6 3/4" x 40 1/2" 6 3/4" x 45"
45 5 1/8" x 24" 5 1/8" x 25 1/2" 5 1/8" x 33" 6 3/4" x 30" 6 3/4" x 37 1/2" 6 3/4" x 42" 6 3/4" x 46 1/2" 8 3/4" x 46 1/2"
50 5 1/8" x 27" 5 1/8" x 30" 6 3/4" x 31 1/2" 6 3/4" x 34 1/2" 6 3/4" x 42" 8 3/4" x 43 1/2" 8 3/4" x 48" 8 3/4" x 52 1/2" 55 5 1/8" x 30" 5 1/8" x 33" 6 3/4" x 34 1/2" 6 3/4" x 39" 6 3/4" x 46 1/2" 8 3/4" x 48" 8 3/4" x 54" 8 3/4" x 58 1/2" 60 5 1/8" x 33" 6 3/4" x 33" 6 3/4" x 37 1/2" 6 3/4" x 42" 8 3/4" x 46 1/2" 8 3/4" x 54" 8 3/4" x 58 1/2" 10 3/4" x 58 1/2"
VARIES
2'-6"
ABUTMENT
POSTS @ 5' - 0" MAXIMUM
ABUTMENT
VARIES
2'-6"
MAXIMUM
1 12 "
RAIL CAP (SHOWN DASHED) 5" RINGSHANK NAILS SEE
NOTES FOR SPACING
6" RINGSHANK NAILS
MAXIMUM
3" X 6" BACKING PLANK STIFFENER ATTACH W/(2)-1/2"Ø
BOLTS W/(2)-MALLEABLE IRON WASHERS PER BACKING
PLANK SPACED DIAGONALLY FROM EACH OTHER
2" X 6" S4S RAIL, FASTEN RAILS TO
POSTS W/(2)-#10 X 4" WOOD
SCREWS AT EACH CONNECTION
CLEAR WIDTH
NOT TO EXCEED 7'-0"
STRUCTURE
30° 3'-8"
2" X 8" S4S RAIL CAP
FASTEN TO EACH
POST AND TO RAIL
W/(2)-#10 X 4" WOOD
SCREWS AT 2'-0" ON
CENTER
10 3/4"
(TYP)
United States Department of Agriculture Forest Service
R06
PACIFIC NORTHWEST REGION
4" X 6" POST FABRICATE
W/TAPERED END (TOP) AND
W/(2)-13/16"Ø HOLES AT BOTTOM
3" X 8" MINIMUM DECK PLANKS (3" X 12" SHOWN)
2" X 8" MINIMUM
RUNNING PLANKS
2" X 12" SHOWN
STAMPS, LOGOS, AND SEALS
ABUTMENT
6"
43" x 8" MINIMUM DECK PLANKS (3" x 12" SHOWN) MAINTAIN 3/8" ± GAP BETWEEN PLANKS
PLAN VIEW ABUTMENT
STRINGER LENGTH OUT - OUT AND RAILING SYSTEM
STRINGER SPAN (℄ BEARING - ℄ BEARING
RAILING SYSTEM SEE
THIS SHEET FOR DETAILS 6"
3 4"Ø BOLT X (VERIFY LENGTH) W / NUT AND
(2)-OVERSIZED MALLEABLE IRON WASHERS
4" X 6" X 1'-2" S4S BLOCKING
3 1/2"
2" X 6" X 4'-6" VERTICAL END
DIAPHRAGM,SEE SHEET
3b FOR DETAILS
*SPACE @ 2'-0"
MAXIMUM INCREMENTS
SIZE PER TABLE - 1B
3 1/2"
**3 18" X DEPTH 4
VARIES GLULAM
DIAPHRAGM 3
SUPPORT FOR RAILS (TYP)
STRINGER STRINGER
(2)-16d NAILS INTO EACH RAIL
W/(2)-3/8"Ø X 3 1/2" LAG
SCREWS AT BASE
BRIDGE W / RAILING SYSTEM
DECK SECTION W / STRINGERS @ 2'-0" MAX O.C.
*MINIMUM NUMBER OF STRINGERS IS 3. ADDITIONAL BRIDGE WIDTH
CAN BE ACHIEVED BY ADDING ADDITIONAL GIRDERS AT 2'-0" SPACING
UP TO 9'-0" CLEAR WIDTH.
PROJECT NAME
GLULAM
STRINGER TRAIL
BRIDGE
3 18" X DEPTH VARIES
GLULAM DIAPHRAGM SEE
SHEET 3b FOR DETAILS
SUBSTRUCTURE SHOWN
FOR ILLUSTRATION ONLY
SEE SHEET 4 FOR DETAILS ELEVATION VIEW
GRADE SHOWN = 0.0%
4" x 6" POST (TYP)
POSTS SHALL BE
VERTICAL
GLULAM TIMBER
STRINGER PER
TABLE - 1B
**DIAPHRAGM DEPTH SHALL BE
APPROXIMATELY 70% OF STRINGER DEPTH.
NOTES:
1) RAILING SYSTEM INCLUDED IN DESIGN ASSUMED AT 40 PLF DEAD
LOAD, EACH SIDE. OTHER APPROVED RAILING SYSTEMS
ALLOWABLE WITHIN THIS DEAD LOAD LIMIT.
2) DESIGN IS CONTROLLED BY LOADS ON THE INTERIOR GIRDER.
REGIONAL STANDARD
R6-STD-963-10
- FABRICATE GLULAM STRINGERS WITH CAMBER BASED ON A 900 FOOT RADIUS.
- RUNNING PLANKS NOT SHOWN FOR CLARITY.
1. FASTEN DECK PLANKS TO STRINGERS WITH TWO ROWS 60d (6-INCH) RING SHANK NAILS PER PLANK
AT EACH STRINGER. ALTERNATE CENTERS.
2. FASTEN RUNNING PLANKS TO DECK WITH 40d (5-INCH RING SHANK) NAILS AT 24-INCHES SPACING.
ALTERNATE CENTERS WITH TWO AT EACH END.
3. SPLICE RAILS AT POSTS. RAILS SHALL BE CONTINUOUS FOR TWO POST SPACES. DO NOT LOCATE
MORE THAN ONERAIL SPLICE AT ANY ONE POST.
4. THE MINIMUM STRINGER DEPTH FOR BRIDGES WITH PEDESTRIAN RAILS IS 15-INCHES.
5. BRIDGES WITH STRINGER DEPTHS LESS THAN 15-INCHES SHALL HAVE CURBS ONLY.
*TABLE - 1B: 3 GLULAM STRINGER SIZE REQUIREMENTS - LRFD - MAXIMUM SPACING 2'-0" INCREMENTS
DRAWING TITLE
3 GLULAM STRINGER
DESIGN TABLE AND
DETAILS
INSTALL DIAPHRAGMS AT MID-SPAN AND WITHIN A DISTANCE OF THE DEPTH FROM THE ABUTMENTS DATE ARCHIVE NO.
INSTALL DIAPHRAGMS AT THIRD POINTS OF SPAN AND WITHIN A DISTANCE OF THE DEPTH FROM THE ABUTMENTS
INSTALL DIAPHRAGMS AT QUARTER POINTS OF SPAN AND WITHIN A DISTANCE OF THE DEPTH FROM THE ABUTMENTS
* SELECT STRINGER SIZE AS THE LARGER OF THE PEDESTRIAN OR GROUND SNOW LOAD SIZE REQUIRED FOR THE
SITE CONDITIONS
** STRINGER LENGTH EQUAL TO STRINGER SPAN PLUS ONE FOOT
LOAD COMBINATIONS: 1.25 DL + 1.75 PL 1.25 DL + 1.75 SL
DEFLECTIONS: PL = L/360, TL = L/240 SL = L/240, TL = L/180
PL = PEDESTRIAN LOAD, DL = DEAD LOAD, SL = SNOW LOAD
DESIGNER
K.VAN HECKE
DRAWN
S.WEISNER
CHECKED
E.ANTRIM
DRAWING SHEET NO.
*** REQUIRES REGIONAL BRIDGE ENGINEER APPROVAL
PROJECT NO. SHEET 03 OF
1/
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** STRINGER
SPAN (FEET)
SPECIES - AC / AC, COMBINATION SYMBOL 20F - V13
DESIGN LOADING IN POUNDS PER SQUARE FOOT
PEDESTRIAN LIVE LOAD GROUND SNOW LOAD
***65 90 150 200 300 400 500 600
25 5 1/8" x 13 1/2" (4.) 5 1/8" x 15" 5 1/8" x 18" 5 1/8" x 19 1/2" 5 1/8" x 22 1/2" 5 1/8" x 24" 5 1/8" x 25 1/2" 5 1/8" x 27"
30 5 1/8" x 16 1/2" 5 1/8" x 18" 5 1/8" x 21" 5 1/8" x 22 1/2" 5 1/8" x 27" 5 1/8" x 30" 5 1/8" x 33" 6 3/4" x 30" 35 5 1/8" x 19 1/2" 5 1/8" x 21" 5 1/8" x 24" 5 1/8" x 27" 5 1/8" x 30" 5 1/8" x 33" 6 3/4" x 33" 6 3/4" x 36" 40 5 1/8" x 21" 5 1/8" x 24" 5 1/8" x 28 1/2" 5 1/8" x 31 1/2" 5 1/8" x 34 1/2" 6 3/4" x 34 1/2" 6 3/4" x 37 1/2" 6 3/4" x 40 1/2" 45 5 1/8" x 24" 5 1/8" x 27" 5 1/8" x 31 1/2" 5 1/8" x 34 1/2" 6 3/4" x 36" 6 3/4" x 39" 6 3/4" x 42" 6 3/4" x 45" 50 5 1/8" x 27" 5 1/8" x 30" 5 1/8" x 34 1/2" 6 3/4" x 34 1/2" 6 3/4" x 39" 6 3/4" x 43 1/2" 6 3/4" x 46 1/2" 8 3/4" x 45"
55 5 1/8" x 30" 5 1/8" x 33" 6 3/4" x 33" 6 3/4" x 37 1/2" 6 3/4" x 43 1/2" 8 3/4" x 43 1/2" 8 3/4" x 46 1/2" 8 3/4" x 49 1/2" 60 5 1/8" x 33" 5 1/8" x 34 1/2" 6 3/4" x 37 1/2" 6 3/4" x 42" 8 3/4" x 43 1/2" 8 3/4" x 48" 8 3/4" x 51" 8 3/4" x 55 1/2"
GLULAM DIAPHRAGM ALTERNATE IS APPLICABLE FOR ALL STRINGER DEPTHS.
B
B
FABRICATION: SUBMIT SHOP DRAWINGS FOR ALL BRIDGE COMPONENTS (EXCEPT TIMBER RUNNING PLANKS). SHOW ALL DIMENSIONS
AND FABRICATION DETAILS FOR ALL CUT OR BORED TIMBER. DO NOT FIELD DRILL HOLES IN TREATED MATERIALS EXCEPT AS ALLOWED
OR APPROVED BY THE CO OR AS SHOWN ON THE PLANS.
HARDWARE AND STRUCTURAL STEEL: SEE PROJECT DESIGN CRITERIA FOR STEEL HARDWARE FINISH. GALVANIZED OR UNFINISHED
HARDWARE: MEET THE REQUIREMENTS OF AASHTO M270, GRADE 36, WITH NUTS AND BOLTS CONFORMING TO ASTM A307, GRADE A.
WEATHERING STEEL AND HARDWARE: MEET THE REQUIREMENTS OF AASHTO M270, GRADE 50W, WITH BOLTS AND NUTS CONFORMING TO
ASTM F3125, GRADE A325, TYPE 3. USE MALLEABLE IRON WASHERS AGAINST WOOD UNLESS OTHERWISE NOTED.
WELD STRUCTURAL STEEL IN ACCORDANCE WITH AWS D1.1, SUITABLE FOR THE GRADE OF STEEL AND INTENDED USE OR SERVICE, AS
CALLED FOR OR APPROVED BY THE C.O.
FIELD TREATMENT: FIELD TREAT USING COPPER NAPHTHENATE (2% SOLUTION) FOR ALL ABRASIONS AND FIELD CUTS IN TREATED
MATERIAL AS APPROVED BY THE C.O. CAREFULLY TRIM OR DRILL AND GIVE THREE BRUSH COATS OF THE FIELD TREATMENT
SOLUTION WHERE APPROVED FIELD DRILLING OF BOLT OR NAIL HOLES IS REQUIRED, FILL THE HOLES WITH PRESERVATIVE PRIOR
TO INSERTING THE FASTENERS. ENSURE TREATMENT IS NOT RELEASED ON THE GROUND OR IN THE STREAM
TREATMENT: SEE PROJECT CRITERIA FOR MEMBERS IDENTIFIED TO BE TREATED AND FOR TREATMENT TYPE. FURNISH
TREATED MATERIALS IN CONFORMANCE WITH CURRENT AMERICAN WOOD PROTECTION ASSOCIATION (AWPA)
SPECIFICATIONS USING THE TREATMENT MATERIALS LISTED BELOW AND IN COMPLIANCE WITH THE REQUIREMENTS OF
THE CURRENT EDITION OF WESTERN WOOD PRESERVERS INSTITUTE (WWPI) "BEST MANAGEMENT PRACTICES FOR THE
USE OF TREATED WOOD IN AQUATIC ENVIRONMENTS".
SPECIFICATIONS:
DESIGN: AASHTO LRFD BRIDGE DESIGN SPECIFICATIONS, 8TH EDITION (2017) AND AASHTO LRFD GUIDE SPECIFICATIONS FOR THE
DESIGN OF PEDESTRIAN BRIDGES, DECEMBER, 2009, EXCEPT AS NOTED. DEFLECTION IN ACCORDANCE WITH FOREST SERVICE
DIRECTIVES, AS SHOWN.
CONSTRUCTION: STANDARD SPECIFICATIONS FOR CONSTRUCTION OF ROADS AND BRIDGES ON FEDERAL HIGHWAY
PROJECTS (FP-14) AND STANDARD SPECIFICATIONS FOR CONSTRUCTION OF TRAILS AND TRAIL BRIDGES ON FEDERAL PROJECTS., GENERAL NOTES:
MATERIALS:
TIMBER & LUMBER:
SOLID SAWN TIMBER: CONFORM TO THE REQUIREMENTS OF THE GRADING RULES AGENCY FOR THE SPECIES, TYPE, AND
GRADE SPECIFIED BELOW. UNLESS SHOWN OTHERWISE, ACCEPTABLE GRADING RULES AGENCIES ARE WWPA OR WCLIB.
GLULAM MEMBERS: CONFORM TO THE AMERICAN NATIONAL STANDARD, STANDARD SPECIFICATIONS FOR STRUCTURAL
GLUED LAMINATED TIMBER OF SOFTWOOD SPECIES (ANSI 117) FOR THE COMBINATION, SPECIES, USE, AND APPEARANCE
SPECIFIED BELOW.
GLULAM STRINGERS
· COMBINATION SYMBOL 2OF-V13, SPECIES - AC/AC DRY CONDITION USE AND INDUSTRIAL APPEARANCE
SILLS, AND BACKING PLANKS
· TREATED (AS ALLOWED): COASTAL REGION DOUGLAS FIR - LARCH S4S OR ROUGH SAWN NO.2
· UNTREATED/DECAY RESISTANT: ALASKA YELLOW OR WESTERN RED CEDAR, S4S OR ROUGH SAWN NO. 2
SUBSTITUTION ALLOWABLE WITH GLULAMINATED MATERIAL IN ACCORDANCE WITH ABOVE FOR STRINGERS.
DECKING
· TREATED (AS ALLOWED): COASTAL REGION DOUGLAS FIR - LARCH FULL ROUGH SAWN NO.2
· UNTREATED/DECAY RESISTANT: ALASKA YELLOW OR WESTERN RED CEDAR, FULL ROUGH SAWN NO. 2
RUNNING PLANKS
· COASTAL REGION DOUGLAS FIR - LARCH ROUGH SAWN NO.2 GRADE, GRADING RULES AGENCY - WWPA, WCLIB
RAILS, POSTS (SEE PROJECT CRITERIA)
· SAWN: ALASKA YELLOW OR WESTERN RED CEDAR, S4S, SELECT STRUCTURAL,
SILLS, BACKING PLANKS, CRIBS, TIMBER WALLS, IF TREATED
· AWPA USE CATEGORY SYSTEM (U1) FOR USE CATEGORY 4B GROUND CONTACT - HEAVY DUTY (UC4B)
· COPPER NAPHTHENATE (CuN) IN HEAVY OIL (TYPE A SOLVENT)
" 10
"Ø (TYP)
PLAN-CURB BLOCK
AT SPLICE
PLAN-CURB BLOCK
AT SPLICE
"Ø (TYP)
2'-0"
" 10
2'-0"
6"
4"
4"
D I A
P H
R A
G M
D E
P T
H
STRINGER
SQUARE PLY ROUT AT TOP & BOTTOM
" GLULAM
DIAPHRAGM
DIAPHRAGM
LENGTH
(VARIES)
STRINGER
SPACING
(VARIES)
OFFSET DIAPHRAGMS
AT INTERIOR STRINGERS
WHERE 3 OR MORE
STRINGERS ARE
REQUIRED
S T
R I N
G E
R
D E
P T
H
V
A R
I E
S
STRINGER
WIDTH
"Ø TIE RODS
MALLEABLE IRON
WASHERS (TYP)
OUT - TO - OUT DECK PLANKS
CLEAR WIDTH
STRUCTURE
2" X 8" MINIMUM
RUNNING PLANKS
2" X 12" SHOWN
6" 6"
"Ø X 1' - 3" TIMBER BOLT & NUT FIELD
DRILL
"Ø HOLE IN DECK PLANKS AND
CONTINUOUS 2" X 6" PLATE TREAT HOLES
PER GENERAL NOTES
6" X 6" CURB
3" X 6" X 2' - 0" CURB BLOCKS
SPACE AT 5' - 0" CENTERS
3" DIMENSIONAL
DECK PLANKS
2" X 6" X CONTINUOUS PLATE
STEEL DIAPHRAGM, SEE
SHEET 3b FOR FABRICATION
DETAILS
7"7"
SPACE @ 4' - 0"
MAXIMUM
SIZE PER
TABLE-1A
STRINGER
STRINGER
CURB
DEPTH
6"
3"
CURB
CURB
BLOCK
"Ø TIMBER BOLTS
(TYP)
CURB
6"
3"
DECK PLANKS
2" X 6" CONTINUOUS PLATE
ELEVATION - CONNECTION
AT SPLICE
ELEVATION - TYPICAL
CONNECTION
SOLID SAWN CURB CONNECTION DETAILS
ELEVATION - SECTION B - B GLULAM
DIAPHRAGM ALTERNATE
BRIDGE W / CURBS ONLY DECK
SECTION W / STRINGERS @ 4' - 0" O.C.
DRAWN
DESIGNER
STAMPS, LOGOS, AND SEALS
PROJECT NAME
DRAWING TITLE
CHECKED
ARCHIVE NO.
DATE
PROJECT NO.
DRAWING SHEET NO.
DATENO.
REVISION / ISSUE
OFSHEET
United States Department of Agriculture Forest Service
1/2 7/2
1 1 4:
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PACIFIC NORTHWEST REGION
GLULAM
STRINGER TRAIL
BRIDGE
REGIONAL STANDARD
R6-STD-963-10
GENERAL NOTES,
CURBS, GLULAM
DIAPHRAGM
01/12/2021
K.VAN HECKE
S.WEISNER
E.ANTRIM
-03a 04 06
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A
A
" 10
"Ø (TYP)
2'-0"
PLAN-CURB BLOCK
AT SPLICE
PLAN-CURB BLOCK
"Ø (TYP)
" 10
2'-0"
6"
CURB
DEPTH
6"
3"
CURB
CURB
BLOCK
"Ø TIMBER BOLTS
(TYP)
CURB
6"
3"
DECK PLANKS
2" X 6" CONTINUOUS PLATE
ELEVATION - CONNECTION
AT SPLICE
ELEVATION - TYPICAL
CONNECTION
SOLID SAWN CURB CONNECTION DETAILS
DIAPHRAGM
LENGTH
(VARIES)
STRINGER
SPACING
(VARIES)
STRINGER
"Ø
HOLE
(TYP)
4"
4"
D I A
P H
R A
G M
D E
P T
H
" X
" BAR
" X 3" X 3"
BAR SPACER
X BRACE (TYP)
FRAME (TYP)
G
STRINGER WIDTH
S T
R I N
G E
R
D E
P T
H
V
A R
I E
S
" Ø HEX BOLT AND NUT
W / MALLEABLE IRON
WASHER THIS SIDE
"Ø X 1' - 3" TIMBER BOLT & NUT FIELD
DRILL
"Ø HOLE IN DECK PLANKS AND
CONTINUOUS 2" X 6" PLATE TREAT HOLES
PER GENERAL NOTES
6" X 6" CURB
3" X 6" X 2' - 0" CURB BLOCKS
SPACE AT 5' - 0" CENTERS
3" DIMENSIONAL
DECK PLANKS
2" X 6" X CONTINUOUS PLATE
STRUCTURE
OUT - TO - OUT DECK PLANKS
CLEAR WIDTH
7'-0" MAXIMUM*
2" X 8" MINIMUM
RUNNING PLANKS
2" X 12" SHOWN
6" 6"
**3
" X DEPTH VARIES
GLULAM DIAPHRAGM
7"
SIMPSON HU312 FACE
MOUNT HANGER (OR EQUAL)
(TYP) AT DIAPHRAGMS
*SPACE @ 2' - 0"
MAXIMUM INCREMENTS
SIZE PER
TABLE 1B
7"
GLULAM
DIAPHRAGM
STRINGER
STRINGER
FABRICATION: SUBMIT SHOP DRAWINGS FOR ALL BRIDGE COMPONENTS (EXCEPT TIMBER RUNNING PLANKS). SHOW ALL DIMENSIONS
AND FABRICATION DETAILS FOR ALL CUT OR BORED TIMBER. DO NOT FIELD DRILL HOLES IN TREATED MATERIALS EXCEPT AS ALLOWED
OR APPROVED BY THE CO OR AS SHOWN ON THE PLANS.
HARDWARE AND STRUCTURAL STEEL: SEE PROJECT DESIGN CRITERIA FOR STEEL HARDWARE FINISH. GALVANIZED OR UNFINISHED
HARDWARE: MEET THE REQUIREMENTS OF AASHTO M270, GRADE 36, WITH NUTS AND BOLTS CONFORMING TO ASTM A307, GRADE A.
WEATHERING STEEL AND HARDWARE: MEET THE REQUIREMENTS OF AASHTO M270, GRADE 50W, WITH BOLTS AND NUTS CONFORMING TO
ASTM F3125, GRADE A325, TYPE 3. USE MALLEABLE IRON WASHERS AGAINST WOOD UNLESS OTHERWISE NOTED.
WELD STRUCTURAL STEEL IN ACCORDANCE WITH AWS D1.1, SUITABLE FOR THE GRADE OF STEEL AND INTENDED USE OR SERVICE, AS
CALLED FOR OR APPROVED BY THE C.O.
FIELD TREATMENT: FIELD TREAT USING COPPER NAPHTHENATE (2% SOLUTION) FOR ALL ABRASIONS AND FIELD CUTS IN TREATED
MATERIAL AS APPROVED BY THE C.O. CAREFULLY TRIM OR DRILL AND GIVE THREE BRUSH COATS OF THE FIELD TREATMENT
SOLUTION WHERE APPROVED FIELD DRILLING OF BOLT OR NAIL HOLES IS REQUIRED, FILL THE HOLES WITH PRESERVATIVE PRIOR
TO INSERTING THE FASTENERS. ENSURE TREATMENT IS NOT RELEASED ON THE GROUND OR IN THE STREAM
TREATMENT: SEE PROJECT CRITERIA FOR MEMBERS IDENTIFIED TO BE TREATED AND FOR TREATMENT TYPE. FURNISH
TREATED MATERIALS IN CONFORMANCE WITH CURRENT AMERICAN WOOD PROTECTION ASSOCIATION (AWPA)
SPECIFICATIONS USING THE TREATMENT MATERIALS LISTED BELOW AND IN COMPLIANCE WITH THE REQUIREMENTS OF
THE CURRENT EDITION OF WESTERN WOOD PRESERVERS INSTITUTE (WWPI) "BEST MANAGEMENT PRACTICES FOR THE
USE OF TREATED WOOD IN AQUATIC ENVIRONMENTS".
SPECIFICATIONS:
DESIGN: AASHTO LRFD BRIDGE DESIGN SPECIFICATIONS, 8TH EDITION (2017) AND AASHTO LRFD GUIDE SPECIFICATIONS FOR THE
DESIGN OF PEDESTRIAN BRIDGES, DECEMBER, 2009, EXCEPT AS NOTED. DEFLECTION IN ACCORDANCE WITH FOREST SERVICE
DIRECTIVES, AS SHOWN.
CONSTRUCTION: STANDARD SPECIFICATIONS FOR CONSTRUCTION OF ROADS AND BRIDGES ON FEDERAL HIGHWAY
PROJECTS (FP-14) AND STANDARD SPECIFICATIONS FOR CONSTRUCTION OF TRAILS AND TRAIL BRIDGES ON FEDERAL PROJECTS., GENERAL NOTES:
MATERIALS:
TIMBER & LUMBER:
SOLID SAWN TIMBER: CONFORM TO THE REQUIREMENTS OF THE GRADING RULES AGENCY FOR THE SPECIES, TYPE, AND
GRADE SPECIFIED BELOW. UNLESS SHOWN OTHERWISE, ACCEPTABLE GRADING RULES AGENCIES ARE WWPA OR WCLIB.
GLULAM MEMBERS: CONFORM TO THE AMERICAN NATIONAL STANDARD, STANDARD SPECIFICATIONS FOR STRUCTURAL
GLUED LAMINATED TIMBER OF SOFTWOOD SPECIES (ANSI 117) FOR THE COMBINATION, SPECIES, USE, AND APPEARANCE
SPECIFIED BELOW.
GLULAM STRINGERS AND DIAPHRAGMS
· COMBINATION SYMBOL 2OF-V13, SPECIES - AC/AC DRY CONDITION USE AND INDUSTRIAL APPEARANCE
SILLS, AND BACKING PLANKS
· TREATED (AS ALLOWED): COASTAL REGION DOUGLAS FIR - LARCH S4S OR ROUGH SAWN NO.2
· UNTREATED/DECAY RESISTANT: ALASKA YELLOW OR WESTERN RED CEDAR, S4S OR ROUGH SAWN NO. 2
SUBSTITUTION ALLOWABLE WITH GLULAMINATED MATERIAL IN ACCORDANCE WITH ABOVE FOR STRINGERS.
DECKING
· TREATED (AS ALLOWED): COASTAL REGION DOUGLAS FIR - LARCH FULL ROUGH SAWN NO.2
· UNTREATED/DECAY RESISTANT: ALASKA YELLOW OR WESTERN RED CEDAR, FULL ROUGH SAWN NO. 2
RUNNING PLANKS
· COASTAL REGION DOUGLAS FIR - LARCH ROUGH SAWN NO.2 GRADE, GRADING RULES AGENCY - WWPA, WCLIB
RAILS, POSTS (SEE PROJECT CRITERIA)
· SAWN: ALASKA YELLOW OR WESTERN RED CEDAR, S4S, SELECT STRUCTURAL,
SILLS, BACKING PLANKS, CRIBS, TIMBER WALLS, IF TREATED
· AWPA USE CATEGORY SYSTEM (U1) FOR USE CATEGORY 4B GROUND CONTACT - HEAVY DUTY (UC4B)
· COPPER NAPHTHENATE (CuN) IN HEAVY OIL (TYPE A SOLVENT)
*MINIMUM NUMBER OF STRINGERS IS 3. ADDITIONAL BRIDGE
WIDTH CAN BE ACHIEVED BY ADDING ADDITIONAL GIRDERS AT
2'-0" MAXIMUM SPACING UP TO 7'-0" CLEAR WIDTH. ADDITIONAL
DESIGN CONSIDERATIONS ARE NEEDED FOR CLEAR WIDTHS
EXCEEDING 7'-0" AND ARE NOT COVERED BY THIS DESIGN.
**DIAPHRAGM DEPTH SHALL BE APPROXIMATELY 70% OF
STRINGER DEPTH..
BRIDGE W / CURBS ONLY DECK
SECTION W / STRINGERS @ 2' - 0" MAXIMUM O.C.
ELEVATION - SECTION A - A GLULAM
DIAPHRAGM ALTERNATE
GLULAM DIAPHRAGM ALTERNATE IS APPLICABLE FOR ALL STRINGER DEPTHS.
OFFSET DIAPHRAGMS
AT INTERIOR STRINGERS
WHERE 3 OR MORE
STRINGERS ARE
REQUIRED
6"
DRAWN
DESIGNER
STAMPS, LOGOS, AND SEALS
PROJECT NAME
DRAWING TITLE
CHECKED
ARCHIVE NO.
DATE
PROJECT NO.
DRAWING SHEET NO.
DATENO.
REVISION / ISSUE
OFSHEET
United States Department of Agriculture Forest Service
1/2 7/2
1 1 4:
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PACIFIC NORTHWEST REGION
GLULAM
STRINGER TRAIL
BRIDGE
REGIONAL STANDARD
R6-STD-963-10
GENERAL NOTES,
CURBS, STEEL
DIAPHRAGMS
01/12/2021
K.VAN HECKE
S.WEISNER
E.ANTRIM
-03b 05 06
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TOP
OF
DECK
PLANKS
STRINGER
PER
PLANS
BEARING SHOE
ABUTMENT
FASTEN DECK PLANK TO TOP OF BACKING PLANK
USING 7" RINGSHANK NAILS ON 12" CENTERS
3/4"Ø BOLT & NUT
W/(2)-MALLEABLE IRON WASHERS
FASTEN EACH BACKING PLANK TO
EACH STRINGER USING
(3)-7" RING SHANK NAILS
TOP OF DECK
PLANKS
STRINGER
PER PLANS
(2)-3/4"Ø
ANCHOR
BOLT AT
EACH
BEARING
BEARING SHOE
ABUTMENT
FASTEN DECK PLANK TO TOP BACKING PLANK
USING 7" RINGSHANK NAILS ON 12" CENTERS
3/4"Ø BOLT & NUT W/(2)-MALLEABLE IRON WASHERS
FASTEN EACH BACKING PLANK TO
EACH STRINGER USING
(3)-7" RING SHANK NAILS
3/4" HEX NUT
3-INCH DIMENSIONAL
United States Department of Agriculture Forest Service
R06
PACIFIC NORTHWEST REGION
STAMPS, LOGOS, AND SEALS
(2)-3/4"Ø x 9" ANCHOR BOLT
AT EACH BEARING SHOE
*TIMBER SILL
3" DIMENSIONAL BACKING PLANKS
**FOUNDATION
SHOE
3/4"
CHAMFER
(TYP)
(4)-#5 REBAR
CONTINUOUS IN SILL
W/2" CONCRETE CLEAR
COVER AT ENDS
3" MINIMUM
CLEAR COVER
BACKING PLANKS
2" MINIMUM CLEAR COVER
12" X 12" CONCRETE SILL
**FOUNDATION
3/4"
PLAIN
WASHER
TIMBER SILL
CONNECTION DETAIL
* TIMBER SILL CAN BE EITHER 12" X 12" SOLID SAWN 10 3/4" X 12" GLUE-LAMINATED, BUILT-UP 3" X 12", 4" X 12", & 6" X 12" TREATED MEMBERS.
** SEE STANDARD DRAWINGS 965-10, 965-20, 965-30, & 965-40 FOR FOUNDATION ALTERNATIVES. ENSURE FOUNDATIONS ARE CONSTRUCTED WITH CONSIDERATION FOR SITE CONDITIONS RELATIVE TO FOUNDATION MATERIAL, NOMINAL BEARING PRESSURES, WATER TABLES, AND PROXIMITY TO ADJACENT SLOPES. DESIGN THE FOUNDATIONS IN ACCORDANCE WITH AASHTO LRFD BRIDGE DESIGN SPECIFICATIONS.
STRINGER ℄
CONCRETE SILL
CONNECTION DETAIL
CONCRETE SILL
ANCHOR BOLT DETAIL
PROJECT NAME
GLULAM
STRINGER TRAIL
BRIDGE
FULL PENETRATION
2"
7 8"Ø
2 HOLES
12" X WIDTH
STRINGER
WIDTH PLUS
14"
STRINGER
1316"Ø
X 1" SLOT
1" SLOT
STRINGER
8" NOTES:
2" SPECIFICATIONS: MATERIALS AND CONSTRUCTION OF THIS STRUCTURE IN ACCORDANCE WITH THE STANDARD SPECIFICATION FOR CONSTRUCTION OF ROADS AND BRIDGES ON FEDERAL HIGHWAY PROJECTS (FP-14) AND STANDARD
SPECIFICATIONS FOR CONSTRUCTION OF TRAILS AND TRAIL BRIDGES ON FEDERAL PROJECTS,
8" CONCRETE: USE STRUCTURAL CONCRETE WITH A 7 SACK MINIMUM MIX, 4 - 6% AIR ENTRAINMENT, SLUMP NOT EXCEEDING 4
REGIONAL STANDARD
R6-STD-963-10
2"
STRINGER
WIDTH PLUS
14"
VARIES
PLAN VIEW
2"
VARIES X 6"
ELASTOMERIC
PAD (TYP) (50
DUROMETER)
END VIEW
WIDTH MINUS
1/4"
12"
(TYP)
SIDE VIEW
INCHES, AND MAXIMUM AGGREGATE SIZE OF 3/4-INCH. SUBMIT A MIX DESIGN TO BE APPROVED BY THE C.O., PROVIDE A
TROWELED SURFACE FINISH UNLESS OTHERWISE SPECIFIED.
REINFORCING STEEL: FURNISH REINFORCING STEEL CONFORMING TO ASTM A615 (AASHTO M31), GRADE 40 OR 60. PROVIDE
2-INCH CLEAR CONCRETE COVER FOR ALL REBAR, UNLESS NOTED OTHERWISE ON THE PLANS.
HARDWARE AND STRUCTURAL STEEL: SEE SUPERSTRUCTURE DRAWINGS FOR PROJECT DESIGN CRITERIA AND GENERAL
NOTES.
TIMBER & LUMBER: REFER TO THE GENERAL NOTES ON SHEETS -03a OR -03b FOR TIMBER & LUMBER SPECIFICATIONS, ALLOWABLE USE OF TREATMENT, AND FIELD TREATING OF WOOD
DRAWING TITLE
BEARING AND SILL
DETAILS
BEARING SHOE DETAIL
MATERIAL = 12" STEEL PLATE A36
LAG SCREW INSTALLATION: PRE-BORE LAG SCREW HOLES USING TWO DIAMETERS, ONE FOR THE SHANK AND ONE FOR THE THREADS. THE LEAD HOLE FOR THE SHANK IS TO BE 1/16-INCH LARGER THAN THE SHANK DIAMETER AND IS TO BE BORED TO THE DEPTH OF PENETRATION OF THE SHANK. THE LEAD HOLE FOR THE THREADED PORTION IS TO BE 70 PERCENT OF THE BOLT DIAMETER AS SHOWN ON THE PLANS AND IS TO BE BORED AT LEAST TO THE LENGTH OF THE THREADS. DO NOT
DRIVE LAG SCREWS WITH A HAMMER. DATE ARCHIVE NO.
DESIGNER
K.VAN HECKE
DRAWING SHEET NO.
DRAWN
S.WEISNER
CHECKED
E.ANTRIM
PROJECT NO. SHEET 06 OF
1/
/2
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3 4 "Ø
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| R06 |
| PACIFIC NORTHWEST REGION |
| TREATMENT |
| COATING |
| TYPE |
| REGIONAL STANDARD R6-STD-963-10 |
| GLULAM STRINGER BRIDGES PLANNING SHEET |
| K.VAN HECKE |
| S.WEISNER |
| E.ANTRIM |
| R06 |
| PACIFIC NORTHWEST REGION |
| REGIONAL STANDARD R6-STD-963-10 |
| 2 GLULAM STRINGR DESIGN TABLE AND DETAILS |
| K.VAN HECKE |
| S.WEISNER |
| E.ANTRIM |
| R06 |
| PACIFIC NORTHWEST REGION |
| REGIONAL STANDARD R6-STD-963-10 |
| 3 GLULAM STRINGER DESIGN TABLE AND DETAILS |
| K.VAN HECKE |
| S.WEISNER |
| E.ANTRIM |
| R06 |
| PACIFIC NORTHWEST REGION |
| REGIONAL STANDARD R6-STD-963-10 |
| GENERAL NOTES, CURBS, GLULAM DIAPHRAGM |
| K.VAN HECKE |
| S.WEISNER |
| E.ANTRIM |
| R06 |
| PACIFIC NORTHWEST REGION |
| A |
| A |
| REGIONAL STANDARD R6-STD-963-10 |
| GENERAL NOTES, CURBS, STEEL DIAPHRAGMS |
| K.VAN HECKE |
| S.WEISNER |
| E.ANTRIM |
| ABUTMENT |
| ABUTMENT |
| R06 |
| PACIFIC NORTHWEST REGION |
| STRINGER ℄ |
| FULL PENETRATION |
| 12" X WIDTH |
| STRINGER |
| REGIONAL STANDARD R6-STD-963-10 |
| VARIES X 6" ELASTOMERIC PAD (TYP) (50 DUROMETER) |
| BEARING AND SILL DETAILS |
| K.VAN HECKE |
| S.WEISNER |
| E.ANTRIM |
File details come from the government source that posted it. Updated .