R6_STD_964-20_PREFABRICATED STEEL GIRDER TRAIL BRIDGE.pdf

2000 LBS 8000 LBS

H-5 VEHICLE LOADING DIAGRAM*

DESIGN HIGH WATER

INSIDE FACE OF

CURB OR RUB RAIL

6'-0"

14'-0"

- MAXIMUM GRADE ℄ BEARING TO ℄ BEARING = 5%

- RUNNING PLANKS AND DECK PLANKS NOT SHOWN FOR CLARITY

RAILING SYSTEM.

SEE PROJECT CRITERIA ABOVE

CLEARANCE

SUBSTRUCTURE SHOWN

FOR ILLUSTRATION ONLY.

SEE ABUTMENT DETAILS

RIPRAP ARMOR (TYP) AT

ABUTMENTS WHERE REQUIRED

SEE SHEET 2 FOR DETAILS

NOT TO SCALE

ELEVATION

NOT TO SCALE

*REQUIRED FOR CLEAR WIDTHS OF 7'-0" OR MORE

DEFINE CRITERIA FOR OTHER VEHICLES TO BE CONSIDERED

DURING DESIGN BY WEIGHT, AXLES OR TRACKS, LENGTH,

WIDTH, MODEL NO.,AND OTHER PERTINENT INFORMATION.

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

2/1 9/2

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R06

PACIFIC NORTHWEST REGION

PREFABRICATED

STEEL GIRDER

TRAIL BRIDGE

REGIONAL STANDARD

R6_STD-964-20

PREFABRICATED STEEL

TRUSS TRAIL BRIDGE

PLANNING AND

CRITERIA

2/10/2021

K.VAN HECKE

S.WEISNER/KLV

E.ANTRIM

-01 01 03

APPROVED BY: R6 DIRECTOR OF ENGINEERING

STRINGERS DIAPHRAGMS DECK RAILING

STRUCTURE

NUMBER

TRAIL NO.

BRIDGE

LOCATION

(MP)

BRIDGE

LENGTH

C-C BRNG

BRIDGE SPAN

OUT-TO-OUT

BRIDGE

CLEAR

WIDTH

PEDESTRIAN

LOAD

GROUND

SNOW

LOAD

MATERIAL

STRENGTH

SIZE

WEATHERING

STEEL/COATING

MATERIAL

UTILITY

SUPPORT?

MATERIAL SPECIES SIZE

TREATMENT

(Y/N) & TYPE

CONFIGURATION MATERIAL SPECIES

TREATMENT

(Y/N) & TYPE

X

UP KIRK 47'-4"

48'-0" 7'-0" 90 N/A TBD TBD W. STEEL NO

SS

3x12 X

X

X

X

X

X

X

DIAPHRAGM/DECK/RAILING MATERIAL: ST=STEEL, SS=SOLID SAWN, GLU=GLULAM, COMP=COMPOSITE TIMBER, NP=NATIVE POLES (MATERIAL WHERE APPROPRIATE)

RUNNING PLANK ABUTMENT BACKWALL APPROACHES

STRUCTURE

NUMBER

SPECIES SIZE WIDTH

TREATMENT

(Y/N) & TYPE

MATERIAL SIZE

TREATMENT

(Y/N) & TYPE

MATERIAL SPECIES SIZE WIDTH HEIGHT

TREATMENT

(Y/N) & TYPE

LENGTH

WIDTH

MATERIAL

TYPE

MATERIAL

DEPTH

GEO-

SYNTHETIC

TYPE

COMMENTS

NEAR FAR

X D. FIR 2" X 12" 36" CONC SS D. FIR

3 x 12 9'-0" 24" X 7'-0" N 2'-6"

X

X

X

X

X

ABUTMENT MATERIAL TYPE: SS = SOLID SAWN, GLU = GLULAM, CONC = CONCRETE BACKWALL MATERIAL SS = SOLID SAWN, GLU = GLULAM, CONC = CONCRETE APPROACH MATERIAL: N = NATIVE/AGGREGATE, ACWS=ASPHALT WEARING SURFACE

W. STEEL

46'-1" 46'-9" 4'-0" 90 N/A TBD TBD W. STEEL W. STEEL NO SS

BRIDGE FRABRICATOR TO SUBMIT GIRDER SIZE AND LAYOUT TO LIMIT INDIVIDUAL GIRDER PIECES TO UNDER 10'-0" IN LENGTH AND 400 LBS PER PIECE. FABRICATOR TO DESIGN BOLTED GIRDER SPLICE AND BOLTED DIPHRAGMS. FABRICATOR MAY USE CONFIGURATION

OTHER THAN TWO GIRDER LAYOUT TO LIMIT INDIVIDUAL GIRDER SIZE.

FABRICATOR MAY PROPOSE ALTERNATE STRUCTURE SUCH AS STEEL TRUSS BRIDGE WITH THE SAME SIZE, LENGTH, AND SPLICE

REQUIREMENTS.

DEFLECTION LIMITS FOR SERVICEBILITY SHALL BE L/240 FOR LIVE LOAD.

VEHICLE LOADING IS NOT REQUIRED.

42"

N

D. FIR 2" X 12" 24" N

Y

ND. FIR

D. FIR 3X12 N 42"

X 4'-0" N BRIDGE GRADE OF 2%CONC SS D. FIR 3 x 12 7'-0" 24" Y

LOW KIRK.

W. STEEL

W. STEEL

3'-0"

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LOW STREAMBED

1 1/2

HIGH WATER ELEVATION

LOW STREAMBED

RIPRAP

1'-0"

GRADE BEAM SEE

SHEET 3 FOR DETAILS

1'-0" *

MINIMUM

COMPETENT,

UNDISTURBED

BEARING

MATERIAL

2'-6"

2'-6"

1'-0"

MINIMUM

1 1/2

HIGH WATER ELEVATION

RIPRAP

1'-0"

1'-0" *

MINIMUM

COMPETENT,

UNDISTURBED

BEARING

MATERIAL

2'-6"

2'-6"

1'-0"

MINIMUM

GEOCELL

ABUTMENT

STABILIZATION

9"

9"

GRADE BEAM

SEE SHEET 3

FOR DETAILS

GENERAL NOTES:

DESIGN : AASHTO LRFD BRIDGE DESIGN SPECIFICATIONS, CURRENT EDITION AND AASHTO LRFD GUIDE SPECIFICATIONS FOR THE DESIGN OF

PEDESTRIAN BRIDGES, CURRENT EDITION, EXCEPT AS NOTED.

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., PREFABRICATED STEEL BRIDGE SUPERSTRUCTURE: PREFABRICATED STEEL SUPERSTRUCTURE DESIGN MUST BE A STEEL GIRDER CONFIGURATION SIMILAR TO

THAT SHOWN ON THE DRAWINGS. MAINTAIN THE CLEARANCES ABOVE HIGH WATER TO THE BOTTOM FLANGE OF THE GIRDER AS INDICATED ON THE BRIDGE

ELEVATION. FOR THE CONTRACTOR PROPOSED CROSS-SECTION, PROVIDE THE WIDTH AND RAILING DETAILS INDICATED ON THE BRIDGE TYPICAL SECTION, AND

DETERMINE GIRDER NUMBER AND SIZE OF GIRDERS. AFTER APPROVAL BY THE CO, FINALIZE CONSTRUCTION OF THE SELECTED STRUCTURE, AND ENSURE THAT

RELATED DETAILS SUCH AS PROFILE, ABUTMENT DETAILS, BEARINGS, AND DECKING ARE CONSIDERED AND INCLUDED IN THE DESIGN AND CONSTRUCTION.

DESIGN THE PREFABRICATED STEEL BRIDGE SUPERSTRUCTURE, ABUTMENT FOUNDATIONS, AND ASSOCIATED DETAILS INCLUDING TIMBER COMPONENTS, UNDER

THE DIRECTION OF A REGISTERED PROFESSIONAL ENGINEER. SUBMIT THE COMPLETED DESIGN, DRAWINGS, AND SPECIFICATION PACKAGE TO THE

CONTRACTING OFFICER FOR REVIEW AND APPROVAL.

PROVIDE CAMBER FOR 100% OF THE FULL DEAD LOAD DEFLECTION PLUS 1% OF BRIDGE SPAN. SUBMIT SHOP DRAWINGS AND CALCULATIONS FOR APPROVAL

BEFORE FABRICATION.

ERECTION PLAN : SUBMIT AN ERECTION PLAN FOR THE PREFABRICATED STEEL BRIDGE SUPERSTRUCTURE TO THE C.O. FOR APPROVAL 14 DAYS BEFORE ERECTION

IS SCHEDULED. IF ALLOWED UNDER THE PROJECT DESIGN CRITERIA, TEMPORARY IN-STREAM SUPPORT BENTS MAY BE USED FOR THE ERECTION OF THE

PREFABRICATED STEEL TRUSS BRIDGE. CONSTRUCT TEMPORARY IN-STREAM BENTS USING UNTREATED TIMBER CRIBBING, SILLS, CONCRETE BLOCKS OR OTHER

SUPPORTS THAT ARE PLACED WITH MINIMAL DISTURBANCE WITHIN THE STREAM. REMOVE ALL MATERIALS USED TO CONSTRUCT THE TEMPORARY IN-STREAM

BENTS. SUBMIT DRAWINGS INDICATING TEMPORARY BENT LOCATIONS AND DETAILS. INDICATE THE EQUIPMENT AND METHODS PROPOSED TO INSTALL AND

REMOVE THE TEMPORARY BENTS AND ERECT THE NEW PREFABRICATED STEEL GIRDER SUPERSTRUCTURE.

TIMBER FABRICATION: SUBMIT SHOP DRAWINGS FOR ALL TIMBER BRIDGE COMPONENTS (EXCEPT TIMBER RUNNING PLANKS). SHOW ALL DIMENSIONS

AND FABRICATION DETAILS FOR ALL CUT OR BORED TIMBER. INDICATE ON SHOP DRAWINGS WHERE FIELD DRILLING OF HOLES IS REQUIRED OR

RECOMMENDED.

FIELD TREATMENT: FURNISH COPPER NAPHTHENATE (2% SOLUTION) FOR FIELD TREATING OF WOOD. FOR FIELD TREATING ALL ABRASIONS AND FIELD

CUTS - AS APPROVED BY THE CONTRACTING OFFICER - CAREFULLY TRIM MEMBERS AND TREAT USING THREE BRUSH COATS OF THE FIELD

TREATMENT SOLUTION. WHERE APPROVED FIELD DRILLING OF BOLT OR NAIL HOLES IS REQUIRED OR ALLOWED, FILL THE HOLES WITH

PRESERVATIVE PRIOR TO INSERTING THE FASTENERS.

MATERIALS:

STEEL: USE STEEL GIRDERS, SHAPES, PLATES AND BARS OF WEATHERING STEEL CONFORMING TO AASHTO M270, GRADE 50W (ASTM A588 OR ASTM A242) .MINIMUM

STEEL THICKNESS SHALL BE AS SPECIFIED IN THE GUIDE SPECIFICATIONS FOR DESIGN OF PEDESTRIAN BRIDGES. USE HIGH STRENGTH BOLTS CONFORMING TO

AASHTO M164, (ASTM F3125, GRADE A325), TYPE 3, UNLESS NOTED OTHERWISE. USE MALLEABLE IRON WASHERS AGAINST WOOD.

STEEL FABRICATION: FABRICATE THE PREFABRICATED STEEL BRIDGE SUPERSTRUCTURE IN A PLANT MEETING QUALITY REQUIREMENTS AS A CERTIFIED STEEL

FABRICATOR BY AISC. WELD STRUCTURAL STEEL IN ACCORDANCE WITH AWS D1.5 AND SUITABLE FOR THE GRADE OF STEEL AND INTENDED USE OR SERVICE.

TREATMENT: SEE PROJECT CRITERIA FOR MEMBERS IDENTIFIED TO BE TREATED AND FOR TREATMENT TYPE. TREAT MEMBERS IN ACCORDANCE

WITH THE CURRENT AMERICAN WOOD PROTECTION ASSOCIATION (AWPA) SPECIFICATIONS USING THE TREATMENT TYPES AND CLASSIFICATIONS

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".

DECKING, RUNNING PLANKS, IF TREATED

- AWPA USE CATEGORY SYSTEM (U1) FOR USE CATEGORY 3B ABOVE GROUND - EXPOSED (UC3B)

- PENTACHLOROPHENOL IN LIGHT OIL (TYPE C SOLVENT)

- COPPER NAPHTHENATE (CuN) IN LIGHT OIL (TYPE C SOLVENT)

SILLS, BACKING PLANKS, CRIBS, TIMBER WALLS, IF TREATED

- AWPA USE CATEGORY SYSTEM (U1) FOR USE CATEGORY 4B GROUND CONTACT - HEAVY DUTY (UC4B)

- PENTACHLOROPHENOL IN HEAVY OIL (TYPE A SOLVENT)

- COPPER NAPHTHENATE (CuN) IN HEAVY OIL (TYPE A SOLVENT)

GRADE BEAM FOUNDATION

RIPRAP ARMORING W/GEOCELL

GRADE BEAM FOUNDATION

RIPRAP ARMORING

SPECIFICATIONS:

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 CALLED FOR IN THE

DESIGN.

DECKING

· TREATED (AS ALLOWED): COASTAL REGION DOUGLAS FIR - LARCH FULL ROUGH SAWN NO.2 OR GLULAMINATED DECKING

· UNTREATED/DECAY RESISTANT: ALASKA YELLOW OR WESTERN RED CEDAR, FULL ROUGH SAWN NO. 2 OR GLULAMINATED DECKING

· TIMBER COMPOSITE MATERIALS CAN BE PROPOSED AND MAY BE ALLOWED. PROVIDE MANUFACTURER DOCUMENTATION.

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,

· TIMBER COMPOSITE MATERIALS CAN BE PROPOSED AND MAY BE ALLOWED. PROVIDE MANUFACTURER DOCUMENTATION.

* SETBACK TO BE DETERMINED BY A FOUNDATION ANALYSIS IN

CONFORMANCE WITH THE DESIGN SPECIFICATIONS. ENSURE

FOUNDATIONS ARE DESIGNED AND 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.

3 1/2"

2" X 6" S4S RAIL, FASTEN RAILS TO

POSTS W/(2)-#10 X 4" WOOD

SCREWS AT EACH CONNECTION

4" X 6" POST FABRICATE

W/TAPERED END (TOP) AND

W/(2)-13/16"Ø HOLES AT BOTTOM

BLOCKING AS REQUIRED

30°

CLEAR WIDTH

2" X 8" MINIMUM

RUNNING PLANKS

2" X 12" SHOWN

10 3/4"

(TYP)

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

STRUCTURE

DIAPHRAGM BY FABRICATOR

IN ACCORDANCE WITH

PROJECT CRITERIA AND

FABRICATOR DESIGN

STRINGER

STRINGER

BRIDGE TYPICAL SECTION

DECKING AS DESIGNED IN

ACCORDANCE WITH CRITERIA

3'-8"

2"

SPACING AND NUMBER OF

GIRDERS IN ACCORDANCE

WITH PROJECT CRITERIA AND

FABRICATOR DESIGN.

RAILING SYSTEM SHOWN IS

FUNCTIONAL AND CAN BE USED.

OTHER RAILING SYSTEMS MEETING

DESIGN CRITERIA ARE ALLOWED.

"Ø BOLT X (VERIFY LENGTH)

W / NUT AND (2)-OVERSIZED

MALLEABLE IRON WASHERS

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

2/1 9/2

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R06

PACIFIC NORTHWEST REGION

PREFABRICATED

STEEL GIRDER

TRAIL BRIDGE

REGIONAL STANDARD

R6_STD-964-20

TYPICAL SECTION,

GENERAL NOTES, AND

FOUNDATION

PROTECTION

2/10/2021

K.VAN HECKE

S.WEISNER/KLV

E.ANTRIM

-02

02 03ALL TIMBER FABRICATION AND TIMBER PIECES ARE NOT INCLUDED IN CONTRACT.

FOUNDATION ANALYSIS AND DESIGN ARE NOT INCLUDED IN CONTRACT.

ERECTION PLAN SHALL ONLY INCLUDE SHOP FITTING THE STEEL SUPERSTRUCTURE PRIOR TO DELIVERY.

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TYPICAL SECTION

1'-8"

BEARING DETAIL

NOTES:

ELEVATION - GRADE BEAM

1 1/2 1 1/2

CONCRETE: USE CLASS A(AE) OR CLASS P(AE) FOR CONCRETE, f'c = 4500 PSI AT 28 DAYS WITH AN ENTRAINED AIR CONTENT

OF 5% ±1% OR AS REQUIRED BY THE DESIGN. PROVIDE ALL CONCRETE IN ACCORDANCE WITH AN APPROVED MIX DESIGN.

CHAMFER ALL EXPOSED EDGES OF CONCRETE 3/4-INCH.

REINFORCING STEEL: USE REINFORCING STEEL OF THE DEFORMED TYPE CONFORMING TO AASHTO M31 (ASTM A615), GRADE 60. WITH CONCRETE COVER AS SHOWN OR A MINIMUM OF 2 INCHES WHERE NOT SHOWN, IN CONFORMANCE WITH

AASHTO SPECIFICATIONS. CUT AND BEND STEEL IN ACCORDANCE WITH ACI 315.

CONCRETE GRADE BEAM: DETAILS SHOWN ON THIS SHEET PROVIDE MINIMUM SIZES AND REQUIREMENTS. PREPARE AND

SUBMIT COMPLETE GRADE BEAM DETAILS SPECIFIC TO THE BRIDGE DESIGN WITH THE PROPOSED SUPERSTRUCTURE

DESIGN AND SHOP DRAWINGS.

FOUNDATION ANALYSIS: ENSURE FOUNDATIONS ARE CONSTRUCTED WITH CONSIDERATION FOR SITE CONDITIONS RELATIVE

TO FOUNDATION MATERIAL, NOMINAL BEARING PRESSURES, WATER TABLES, AND PROXIMITY TO ADJACENT SLOPES.

3" X 10" OR 3" X 12"

TIMBER ROUGH SAWN

BACKING PLANKS

STRUCTURE

(2)-ANCHOR BOLTS MINIMUM AT

EACH BEARING LOCATION

APPROACH

FILL SLOPE

TOTAL BACKWALL

AND CONNECTION

DETAILS TO BE

DETERMINED BY

CONTRACTOR

(4)-#6 CONTINUOUS

TOP AND BOTTOM

*12" ANCHOR

#4 HOOPS

#4 CONTINUOUS EACH FACE

OUT-TO-OUT CONCRETE GRADE BEAM

(BRIDGE TOTAL WIDTH + 3'-0")

SPACE #4 HOOPS @ 12" ±

3" 3"

FINISH GRADE

3" X 10" OR 3" X 12" TIMBER ROUGH

SAWN BACKING PLANKS

DECK PLANKS

GIRDER

BOTTOM FLANGE

OF GIRDER

BEARING

PLATE

GRADE BEAM

ATTACH BACKING PLANK

TO SUPERSTRUCTURE

COMPRESSIBLE JOINT

FILLER AS REQUIRED

ELASTOMERIC BEARING PAD

(50 DUROMETER) AS

REQUIRED, OR GROUT

LEVELING PAD AS NEEDED

SLOPE TOP SURFACE OF GRADE BEAM AS

REQUIRED FOR UNIFORM BEARING. VERIFY

CONFIGURATION WITH TRUSS FABRICATOR.

(2)-3/4"Ø a307 ANCHOR BOLTS AT EACH BEARING LOCATION

MINIMUM. EMBED 12" MINIMUM INTO GRADE BEAM.

PLACEMENT AND THREADED PROJECTION BY OTHERS.

(4)-#6 CONTINUOUS

EQUALLY SPACED

#4 HOOPS @

12" ±

#4

CONTINUOUS

AT EACH FACE

4 1/2"

(4)-#6 CONTINUOUS

EQUALLY SPACED

2'-0"

T H

R E

A D

P R

O J E

C T

I O

N

2" X 12" RUNNING PLANKS

BACKFILL W/SUITABLE MATERIAL

* 12" CAST-IN-PLACE ANCHOR OR 7" EPOXY ANCHOR WHEN

APPROVED BY CO OR AS REQUIRED BY DESIGN

NOT TO SCALE

3" CLEAR FROM BOTTOM OF SILL CAST

AGAINST EARTH TO REINFORCEMENT.

2" CLEAR ALL OTHER LOCATIONS OR

FOR PRECAST SILLS.

1'-0" MIN EMBEDMENT

RAILING NOT SHOWN FOR CLARITY

BRIDGE TOTAL WIDTH

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

2/1 9/2

1 1 7:

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R06

PACIFIC NORTHWEST REGION

PREFABRICATED

STEEL GIRDER

TRAIL BRIDGE

REGIONAL STANDARD

R6_STD-964-20

BEARING AND

SUBSTRUCTURE

DETAILS

2/1/2021

K.VAN HECKE

S.WEISNER/KLV

E.ANTRIM

-03 03 03

CONCRETE FOUNDATION IS NOT IN CONTRACT

FABRICATOR TO DESIGN & SUPPLY BEARING

PLATE AND BEARING PAD.

BRIDGE ATTACHED TO CONCRETE

FOUNDATION USING 3/4" ANCHOR BOLTS.

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AutoCAD SHX Text L

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AutoCAD SHX Text U

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AutoCAD SHX Text E