Attachment 1 Statement of Work.pdf

LOWER MAD RIVER TRAIL BRIDGE #1 & #2 SUPPLY RFQ

OKANOGAN WENATCHEE NF PAGE 1 of 3

5/3/2023

SECTION C--DESCRIPTION/SPECIFICATIONS/STATEMENT OF WORK

C-1 SCOPE OF THE CONTRACT

The Okanogan-Wenatchee National Forest, Entiat Ranger Districts, Chelan County, Washington is contracting for the supply and unloading of a two, single-span treated timber glued laminated stringer trail bridges including their corresponding substructure components at a designated site. The bridge components shall be fabricated, including all hardware, per the drawings and specifications, delivered, unassembled and offloaded to the designated location. The plans provided are for the trail bridges that were previously in place on the Mad River Trail (Trail # 1409) and consumed by the Cougar Creek Fire in 2018.

C-2 MATERIALS

Materials to be supplied shall be fabricated as shown on the Drawings. Wood species and grade shall be as shown on the Drawings. Hardware including steel plates, bolts, washers, nuts, screws, and nails shall be supplied as shown on the Drawings. The Forest Service intends to replace the bridges ‘in kind’ with the only exceptions being for wood treatment (see section C.5 for exceptions). All supplied products shall meet the requirements of sections 963 and 965 of the latest version of Standard Specifications for Construction of Trails and Trail Bridges on Forest Service Projects

C-3 CONFIGURATION

Components shall be fabricated to accommodate dimensions and configuration shown on the Drawings.

Bridge components shall be packaged in lots not to exceed 2,000 pounds to facilitate delivery to the bridge installation site(s) by helicopter. Transporting the trail bridge components from the delivery site to the installation site(s) are not included in this contract. The final bridge assemblies will be performed by others so components shall be clearly marked to facilitate assembly. Package components for bridges separately or in a manner that provides clear differentiation of all components fabricated for each individual bridge. Clearly communicate any labelling system to the Contracting Officer.

C-4 FABRICATION

Fabricate materials in accordance with Drawings and as follows: Materials shall be completely shop fabricated in accordance with approved shop drawings. Fabrication shall include all necessary cuts, holes, and splices. Shop drawing approval by Contracting Officer (CO) is required prior to start of fabrication work.

C-5 TREATMENT. All timber members identified to be treated and treatment type for this contract shall be in accordance with the “Project Criteria” for each trail bridge structure shown on Drawings. Preservative Treatment shall be in accordance with the current American Wood Protection Association (AWPA) Specifications using the treatment materials shown in the General Notes, shown in the Drawings. Treatment will comply

LOWER MAD RIVER TRAIL BRIDGE

OKANOGAN WENATCHEE NF PAGE 2 of 3 with the requirements of the current edition of the Western Wood Preservers Institute (WWPI) “Best Management Practices For The Use Of Treated Wood In Aquatic Environments”. Handle timbers carefully and do not drop or damage outer fibers, or penetrate the surface with tools. Do not use cant dogs, hooks, or pike poles.

Exceptions to the original drawings will be treatment of the wood components and additional items required for substructure repair/re-use. Treatments for the new bridge timber members are as follows:

All Glued-Laminates:

-AWPA use category system (U1) for use category 3B (above ground) - Exposed UC3B

- Klear Gard 25 or approved equal.

All Bridge Decking, Running Planks & Railing System:

--AWPA use category system (U1) for use category 3B (above ground) - Exposed UC3B

- Klear Gard 25 or approved equal.

All Sills, Backing planks, cribs & timber walls:

-AWPA Use Category System (U1) for use category 4B (Ground contact) – Heavy Duty

UC4B

-Pentachlorophenol in Heavy Oil (Type A Solvent)

Additional items include:

For Lower Mad River Trail Bridge #1 at MP 10.5 - High Strength Epoxy Adhesive to anchor the headed anchor bolts to the concrete substructure on the near abutment.

For Lower Mad River Trail Bridge #2 at MP 11.2 – Cement mortar to level the rock surface for sill bearing as noted on the Bearing Detail as shown on the plans.

C-6 SUBMITTALS & CERTIFICATIONS.

The following submittals shall be provided to the government:

Shop Drawings including o Bill of materials (hardware and timber) o Drawings for all members and fabricated steel items clearly identifying dimensions, holes, and other requirements o Material grade, species, and treatment type as applicable

Lumber and timber material certifications

Fabrication of materials shall not begin prior to approval of shop drawings by the Government. The Government will respond to shop drawings within 14 days of submittal receipt.

C-7 DELIVERY

LOWER MAD RIVER TRAIL BRIDGE

OKANOGAN WENATCHEE NF PAGE 3 of 3

Bridge components for Mad River Trail Bridge shall be delivered to the designated turnout on Tyee Ridge Road (Forest Road 5700) located at 47°50'13.0"N 120°29'11.9"W (47.836945, -120.486643) near Ardenvoir, WA. To access the project area, from Entiat, WA, follow US-97 Alt South for 1.2 miles and take County Road 19 (Entiat River Road) for approximately 9.8 miles to Mad River Road (County Road 119A). Turn Left and follow Mad River Road for 2 miles to the junction of French Corral Road (FSR 5800) and Tyee Ridge Road (FSR 5700). Continue straight on FSR 5700 for approximately

13.9 miles to the end of the pavement then another 0.6 miles on a gravel road (to MP 14.5 on FSR 5700) to the unloading site.Coordination for a specific delivery location within the compound will occur after award. The Government will not be responsible for offloading the materials at the designated delivery site for the Mad River Trail Bridge components.

C-8 CONTRACT TIME

Delivery of the products should be made in late spring or early summer of 2024 and shall be on or before July 1, 2024.

The pricing shall include cost for delivery and off-loading material at the site. The CO must be notified 10 days prior to delivery.