Attachment 1- Statement of Work.docx

US Department of Agriculture (USDA)

Statement of Work

Contents

Project – Trail Bridge Lumber Packages - Selway Suspension Trail Bridge and Warm Springs Trail Bridge

General Information

1.0 Description of Work

This project consists of obtaining the wooden material and hardware that makes up the superstructure of the Selway Suspension Trail Bridge and Warm Springs Trail Bridge. Work will include but is not limited to acquisition of dimensional lumber, transportation of dimensional lumber to a site specified in section 2, weatherproofing all materials for over winter storage and all other work items necessary to complete the project in accordance with the plans and specifications.

2.0 Project Location

There will be two different delivery areas based on each project.

For the Selway Suspension Trail Bridge materials, to reach the delivery area from Hamilton, MT: Drive south on US 93 approximately 20.8 miles. Turn right onto State Highway 473 (West Fork Rd) and drive approximately 18.8 miles, turning right onto FSR-66J and arrive at the Forest Service Stockpile yard “Rombo Pit” (45.753414 N, 114.292166 W).

For the Warm Springs Trail Bridge, to reach the delivery area from Hamilton, MT: Drive south on US 93 approximately 36.2 miles. Turn left into the Sula Ranger Station and arrive at the delivery location (45.819377 N, 113.957984 W).

3.0 Site Visit

No tour will be provided by the government, but contractors may visit the delivery sites unaccompanied.

4.0 Delivery

The contract items shall be delivered on or before May 15, 2026.

The contractor shall provide shop drawings of all materials before manufacture for Government approval. The purpose is to confirm the correct dimensions to be cut and locations of holes to be drilled.

5.0 Specifications

Selway Suspension Trail Bridge Specifications Material Specifications:

Timber & Lumber –

(a) – Treated Timber. The treated timber shall be of Coastal Region Douglas Fir or Larch according to Western Wood Products Association, 2025, or West Coast Lumber Inspection Bureau, 2024 Revised. Fabrication shall be according to the drawings. Treatment shall be according to America Wood protection Association (AWPA) U1 reference UC4C for Ground Contact or Fresh Water Use, and shall be Copper Naphthenate preservative in hydrocarbon solvent A/CCA/alternate oil-based products when approved equal, according to AWPA -P36 for solid sawn. Glued-Laminated products shall be treated compatible with their manufacturing process. All members thicker than 1 inch nominal shall be incised.

i. Special Packaging. Lumber shall be bundled and marked for ready identification. Each piece shall be stamped with the applicable piece mark designated on the drawings.

ii. Storage and Handling of Materials. All materials shall be handled, stacked, and protected so as to prevent scarring, breaking, warping, or weathering. No cant hooks, dogs, pike poles, or peavies shall be used, and timber shall not be marred or broken. Corners of heavy timbers and banded packages of lighter timber shall be protected by slings when handled.

Certificate requirements- The contractor shall furnish the following certifications to the contracting officer upon delivery of the materials at the delivery point.

1) Verification of compliance with grading rules and species of timber and lumber. Certification shall be by an agency accepted as competent by the American Lumber Standards Committee.

2) Certification of preservative penetration in inches, and retention in pounds per cubic foot (assay method) by an independent, qualified testing agency.

3) In addition, the contractor shall certify each certificate as follows:

“I certify that this certificate is applicable to Items 1a,1b, and 1c, and covers the material actually delivered under U.S.D.A. Forest Service, Award No. TBD.”

Warm Springs Trail Bridge Specifications

Material 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 combination, species, use and appearance specified below.

Glulam Stringers and diaphragms

· Combination symbol 20F-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 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”.

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).

6.0 Drawings

The following drawings are a part of this solicitation and any resultant contract to ensure the contractor cuts and drills all appropriate holes and dimensions for the required lumber:

Selway Suspension Bridge Reconstruction Project

Warm Springs Trail Bridge MP 0.1

R6 STD 963-10

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