CA ERFO KLAMATH NF 18N31(1) UPPER WEST BRANCH BRIDGE

Original Set Aside: Historically Underutilized Business (HUBZone) Set-Aside (FAR 19.13) Klamath National Forest (KNF) sustained significant damage to transportation facilities, including bridges during the 2020 fire season. The US Forest Service (FS) is requesting that the Central Federal Lands Highway Division (CFLHD) perform engineering and construction services to replace the Upper West Branch Bridge structure utilizing Emergency Repair for Federally Owned Roads (ERFO) and Forest Service funds. The project site is located in Siskiyou County. CA., approximately 1/3-mile northwest on Forest Route 18N31 from Grayback Road. The original bridge was a 79-foot x 11-foot, single-lane, steel truss bridge with concrete abutments and timber decking. Purpose of this project is to fully replace the Upper West Branch Creek Bridge on Forest Route 18N31. This bridge was damaged by fire in 2020 and will be fully replaced with a proposed concrete bridge utilizing wood cellulose nano-crystals (CNC) incorporated in the concrete mix design for precast concrete girders. A 90-ft x 16-ft proposed structure is anticipated. Portions of the existing abutments are proposed to remain, but will not be used to support the new bridge. The roadway approaches will be reconstructed for up to 150 feet on either end of the bridges. The bridge and a short section of the roadway approaches will be asphalt overlaid to reduce sedimentation into the stream. Bridge rail and guardrail with terminals will be included.

Bridge, Renovation.

Division 01 -	General Requirements, Vehicular Access and Parking, Traffic Control, Temporary Barriers and Enclosures.
Division 03 -	Concrete, Concrete Reinforcing, Precast Structural Concrete.
Division 05 -	Metals, Structural Steel Framing, Structural Steel for Bridges, Steel Joist Framing, Steel Joist Girder Framing.
Division 07 -	Thermal and Moisture Protection, Expansion Control.
Division 09 -	Finishes, High-Performance Coatings.
Division 10 -	Specialties, Signage, Traffic Signage.
Division 26 -	Electrical, Exterior Lighting, Lighting Poles and Standards, Roadway Lighting.
Division 31 -	Earthwork, Embankments, Erosion and Sedimentation Controls, Slope Protection, Gabions, Riprap, Special Foundations and Load-Bearing Elements, Driven Piles.
Division 32 -	Exterior Improvements, Bases, Ballasts, and Paving, Flexible Paving, Rigid Paving, Fences and Gates, Retaining Walls.
Division 34 -	Transportation, Bridges.