4. Drawings - Sheet 1.pdf

PDF 418 KB Posted Apr 30, 2024

Attached to: Eldorado National Forest; Placerville Ranger District; 03 - CON - Disaster, Pony Express Trail Bridge Repairs
Solicitation number: 12970224R0029
Issued by: Department of Agriculture Forest Service

About this file

Written by GovTribe AI · Apr 30, 2024

This document contains the design drawings and specifications for a series of pedestrian bridges to be constructed on the Pony Express Trail in the Eldorado National Forest. The drawings provide detailed plans and dimensions for six trail bridge locations, including Kyburz #2, Clubhouse, Fred's Place, Aspen Creek, and Huckleberry Flat. The specifications outline the required materials and construction methods, including the use of glued laminated timber girders, Douglas Fir-Larch decking, and pressure-treated timber components. Specific design loads, including snow and pedestrian live loads, are provided.

The related federal contract opportunity is for the fabrication, construction, and installation of four of the trail bridges as part of the Pony Express Trail Bridge Repairs project. The contract has an estimated value between $250,000 and $500,000, with a period of performance from August 15, 2024 to November 15, 2025. The solicitation is being issued by the USDA Forest Service, and a pre-bid site visit is scheduled for May 16, 2024. RFIs are due by May 23, 2024. The contract will be awarded under NAICS code 237310, with Davis-Bacon wages applying.

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AutoCAD SHX Text 3 x 12 x 6'-11" Deck planks shown. See table See table below for required size.

AutoCAD SHX Text Sym. about ~C of bridge

AutoCAD SHX Text 2x8 Cap Rail

AutoCAD SHX Text 6x6 Posts

AutoCAD SHX Text 6x6 Curb

AutoCAD SHX Text %%u TYPICAL SECTION %%u

AutoCAD SHX Text %%u PEDESTRIAN, BICYCLE OR EQUESTRIAN USE %%u

AutoCAD SHX Text Scale: 3/4" = 1'-0"

AutoCAD SHX Text 2x6 Rails

AutoCAD SHX Text 2x12 Run Planks

AutoCAD SHX Text Glued laminated girder (6 "x15" shown). See table 34"x15" shown). See table below for required size.

AutoCAD SHX Text %%u PLAN %%u

AutoCAD SHX Text Scale: 1/2" = 1'-0"

AutoCAD SHX Text 3x12 Deck planks (shown), install with a max. of 1/2" space between planks. See table below for required size.

AutoCAD SHX Text 3x12 Blocking near midspan and at each end

AutoCAD SHX Text 6x6 Post

AutoCAD SHX Text 2x6 Rail

AutoCAD SHX Text Sym. About ~C Deck & Bridge

AutoCAD SHX Text 2x12 Run Planks

AutoCAD SHX Text 2x6 Rails, typ

AutoCAD SHX Text 6x6 Curb

AutoCAD SHX Text 6x6 Post

AutoCAD SHX Text Provide well graded rock up to 3/4" fulllength of bulkhead. A geocomposite drain may be substituted for rock.

AutoCAD SHX Text Foundation material shall be compacted prior to placement of abutment.

AutoCAD SHX Text 1'-0" x 1'-0" deep concrete footing or 12x12 timber sill. Geotechnical engineer shall approve usage of timber sills.

AutoCAD SHX Text Soil Foundation

AutoCAD SHX Text min.

AutoCAD SHX Text 2x10 End wall planks

AutoCAD SHX Text High Water Line

AutoCAD SHX Text Filter fabric (typ.)

AutoCAD SHX Text 1'-0" Wide concrete footing

AutoCAD SHX Text Rock Foundation

AutoCAD SHX Text min.

AutoCAD SHX Text %%u ELEVATION %%u

AutoCAD SHX Text Scale: 1/2" = 1'-0"

AutoCAD SHX Text #14 x 4" galvanized wood screw at 2' o.c., staggered, and centered on deck plank below.

AutoCAD SHX Text 1" x 3" bevel ramp on end of run planks

AutoCAD SHX Text 2x8 Cap rail

AutoCAD SHX Text 6x6 Curb

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DATE

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DATE

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DISREGARD PRINTS BEARING EARLIER DATES

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AND DATE

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STAFF ENGINEER TRANSPORTATION STRUCTURES

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REGIONAL ENGINEER

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REVISION MARK

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APPROVED:

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RECOMMENDED:

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CHECKED

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DESIGNED

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DRAWN

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U. S. DEPARTMENT OF AGRICULTURE

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DATE

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DATE

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SCALE:

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DATE

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BRIDGE SHEET

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DRAWING NUMBER

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FOREST SERVICE

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REGION FIVE

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STATE

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FOREST

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TOTAL

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SHEETS

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PROJECT NAME

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PROJECT NO.

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SHEET

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STANDARD 6'-0" FOOT BRIDGE

AutoCAD SHX Text Pony Express Trail Bridges Rebuild

AutoCAD SHX Text As Noted

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AutoCAD SHX Text R5 Trans. Struct.

AutoCAD SHX Text 2/26/24

AutoCAD SHX Text R5 Trans. Struct.

AutoCAD SHX Text 2/26/24

AutoCAD SHX Text R5 Trans. Struct.

AutoCAD SHX Text 2/27/24

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AutoCAD SHX Text Eldorado

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PLAN AND ELEVATION

AutoCAD SHX Text R-1739-01

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AutoCAD SHX Text typ.

AutoCAD SHX Text "X"

AutoCAD SHX Text (See table below for required post spacing)

AutoCAD SHX Text See table below for required girder length

AutoCAD SHX Text (Cap Rail Not Shown For Clarity)

AutoCAD SHX Text GENERAL NOTES: The Forest Engineer shall determine the deck height, bridge length, snow load, and shall approve the final inspection. The high water line, scour depth, and soil conditions shall be determined by the Regional Bridge Engineer. The Regional Bridge Engineer shall be notified of each trail bridge prior to installation. SPECIFICATIONS: DESIGN: AASHTO LRFD Bridge Design Specifications, 9th edition, 2020, and the AASHTO LRFD Guide Specifications for the Design of Pedestrian Bridges. DESIGN: AASHTO LRFD Bridge Design Specifications, 9th edition, 2020, and the AASHTO LRFD Guide Specifications for the Design of Pedestrian Bridges. CONSTRUCTION: Standard Specifications For Construction of Roads and Bridges on Federal Highway Projects (FP-14), with Forest Service Supplemental Specifications. DESIGN LOADS: Concrete = 150 PCF; Timber = 50 PCF; Pedestrian Live Load = 90 PSF; Earth pressure equivalent to a fluid weighing 36 PCF. Concrete = 150 PCF; Timber = 50 PCF; Pedestrian Live Load = 90 PSF; Earth pressure equivalent to a fluid weighing 36 PCF. Snow Load varies from 0 PSF to 425 PSF. Snow load and Pedestrian Live Load are not combined. Equestrian Live Load = 1,000 pound single hoof load over a deck plank square area measuring 4 inches on a side. TIMBER: Deck planks and 4x6 posts shall be Douglas Fir-Larch No. 1 or better, S4S. 6x6 posts and curbs shall be Douglas Fir-Larch, No. 1, S4S. Run Planks, sills Deck planks and 4x6 posts shall be Douglas Fir-Larch No. 1 or better, S4S. 6x6 posts and curbs shall be Douglas Fir-Larch, No. 1, S4S. Run Planks, sills and end planks shall be Douglas Fir-Larch No. 2 or better, rough. Girders shall be glued laminated Douglas-Fir, combination symbol 24F-V4 DF/DF. Rails shall be solid sawn California Redwood, No. 1, S4S. Maximum moisture content for timber shall be 19%. Maximum moisture content for glued laminated members shall be 16%. All timber except rails and run planks shall be pressure treated with copper naphthenate in heavy oil, in accordance with AASHTO M133; AWPA and AWPA U1-09, Use Category UC4B. Treated materials shall follow the post treatment requirements summarized in "Best Management Practices for the Use of Treated Wood in Aquatic Environments" (WWPI 1196), to ensure all surfaces are free of excess preservative, and chemicals are adequately fixated in the wood. All wood members shall be cut and drilled before treatment. When miscellaneous field drilled holes and cuts are required because of mis-alignment, they must be approved by the Engineer. All field drilled holes and cuts shall be treated with two applications of copper naphthenate 2% solution. Lead holes are required for all bolts and screws. Driving of lag bolts and screws will not be permitted. Glued Laminated stringers shall be fabricated with a 1000' Radius). CONCRETE: Cast in place concrete shall meet the Specification for Minor Concrete (601), with a 28 day compressive strength of 3,000 psi. Cast in place concrete shall meet the Specification for Minor Concrete (601), with a 28 day compressive strength of 3,000 psi. Chamfer all exposed edges 3/4". Exposed surfaces shall have a Class 2 rubbed finish. Additives containing calcium chloride shall not be used. REINFORCING STEEL: Reinforcing steel shall conform to the requirements of AASHTO M31 (ASTM A615), Grade 60. Unless otherwise shown, minimum covering to face of Reinforcing steel shall conform to the requirements of AASHTO M31 (ASTM A615), Grade 60. Unless otherwise shown, minimum covering to face of steel shall be 2". BEARING STRESS: See table for the minimum required AASHTO Service Limit State soil bearing stress. See table for the minimum required AASHTO Service Limit State soil bearing stress. MISCELLANEOUS STEEL: All plates and shapes shall conform to AASHTO M270 (ASTM A709) Grade 36. Bolts shall conform to ASTM A 307. Anchor bolts shall conform All plates and shapes shall conform to AASHTO M270 (ASTM A709) Grade 36. Bolts shall conform to ASTM A 307. Anchor bolts shall conform to ASTM F1554, Grade 36. All steel shall be hot dipped galvanized per AASHTO 232 (ASTM A153) after fabrication. Stainless steel plates, shapes, and bolts may be used in lieu of hot dipped galvanized steel. Stainless steel bolts shall conform to ASTM A193. Stainless steel plates shall conform to ASTM A480. ELASTOMERIC BEARING: Bearing pads shall have a Durometer Hardness of 60. Design method A, grade 3. Bearing pads shall have a Durometer Hardness of 60. Design method A, grade 3. CONSTRUCTI0N NOTES: Abutment fill shall not be placed until superstructrure has been placed. Fill shall be brought up to grade equally at both abutments. Abutment fill shall not be placed until superstructrure has been placed. Fill shall be brought up to grade equally at both abutments. Fabrication: Submit shop drawings for all bridge components. Show all dimensions and fabrication details for all cut or bored timber.Submit shop drawings for all bridge components. Show all dimensions and fabrication details for all cut or bored timber.

AutoCAD SHX Text Ea. side

AutoCAD SHX Text Post Qty.

AutoCAD SHX Text Dim.

AutoCAD SHX Text "X"

AutoCAD SHX Text 1'-0"

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AutoCAD SHX Text Post Spacing, Each Side Along Girder

AutoCAD SHX Text 4'-0", 4'-6", 4'-6", 4'-6", 4'-6", 4'-0"

AutoCAD SHX Text Trail Bridge Name

AutoCAD SHX Text Kyburz #2

AutoCAD SHX Text Clubhouse

AutoCAD SHX Text Fred's Place

AutoCAD SHX Text Aspen Creek

AutoCAD SHX Text Huckleberry Flat

AutoCAD SHX Text Latitude/Longitude

AutoCAD SHX Text 38.778725, -120.293329

AutoCAD SHX Text Snow Load

AutoCAD SHX Text 225 psf

AutoCAD SHX Text Seismic

AutoCAD SHX Text 0.42

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AutoCAD SHX Text Q100

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AutoCAD SHX Text Reqd Soil Bearing

AutoCAD SHX Text Service Limit State

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AutoCAD SHX Text Q2

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4 KSF

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PGA

AutoCAD SHX Text Glued Laminated

AutoCAD SHX Text Girder Length

AutoCAD SHX Text 28 ft

AutoCAD SHX Text 6~w x 22~8

AutoCAD SHX Text 3x12 (S4S)

AutoCAD SHX Text Deck Plank

AutoCAD SHX Text Dim's

AutoCAD SHX Text Rail Post

AutoCAD SHX Text Dim's

AutoCAD SHX Text 6x6 (S4S)

AutoCAD SHX Text Pony Express Trail Bridges Rebuild Project

AutoCAD SHX Text Girder

AutoCAD SHX Text Dim's

AutoCAD SHX Text 2x12 (rough)

AutoCAD SHX Text Run Plank

AutoCAD SHX Text Dim's

AutoCAD SHX Text 38.778572, -120.277926

AutoCAD SHX Text 38.785396, -120.236995

AutoCAD SHX Text 38.807764, -120.081643

AutoCAD SHX Text 38.815951, -120.057104

AutoCAD SHX Text 225 psf

AutoCAD SHX Text 425 psf

AutoCAD SHX Text 0.43

AutoCAD SHX Text 0.45

AutoCAD SHX Text 0.57

AutoCAD SHX Text 0.60

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3 KSF

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4 KSF

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6 KSF

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5 KSF

AutoCAD SHX Text 19 ft

AutoCAD SHX Text 25 ft

AutoCAD SHX Text 22 ft

AutoCAD SHX Text 20 ft

AutoCAD SHX Text 6~w x 15

AutoCAD SHX Text 6~w x 19~8

AutoCAD SHX Text 6~w x 22~8

AutoCAD SHX Text 6~w x 21

AutoCAD SHX Text 3x12 (S4S)

AutoCAD SHX Text 4x12 (S4S)

AutoCAD SHX Text 2x12 (rough)

AutoCAD SHX Text 6x6 (S4S)

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AutoCAD SHX Text 1'-0"

AutoCAD SHX Text 1'-3"

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AutoCAD SHX Text 4'-0", 4'-6", 4'-6", 4'-0"

AutoCAD SHX Text 4'-6"

AutoCAD SHX Text 4'-0"

AutoCAD SHX Text 4'-6"

Sheets and Views

R-1737-01

	2024-03-04T07:54:23-0800
Darrell Pereira

	2024-03-04T08:03:51-0800
LEONARD JOB

File details come from the government source that posted it. Updated Apr 30, 2024.