UPRR Canyon Subdivision, Milepost 264.53 Bridge Replacement Project

The Union Pacific Railroad Canyon Subdivision at Milepost 264.53 in Plumas County, California, is undergoing replacement of a deteriorated 111-foot-long, 36-inch-diameter corrugated metal pipe culvert that has been deemed unsafe due to bowing, buckling, and extensive corrosion. The existing structure will be replaced with a new 120-foot-long, 60-inch-diameter smooth steel pipe culvert installed using horizontal auger boring techniques approximately six feet east of and parallel to the original culvert, allowing for minimal disruption to active rail operations. Upon completion, the old culvert will be grouted and permanently abandoned in place. The project is being managed by the Central Valley Regional Water Quality Control Board, Region 5 – Redding, under WDID No. 5A32CR00258, and requires compliance with Clean Water Act Section 401 certification and a CEQA categorical exemption under Title 14, California Code of Regulations, Section 15302, which permits the replacement without full environmental review as long as the new structure maintains substantially the same purpose and capacity as the original. The U.S. Army Corps of Engineers provides federal oversight for Section 404 authorization, and the project site is situated at coordinates 40.0070° N, 121.1935° W. Contract administration responsibilities are supported by contact personnel from both the water board and Union Pacific Railroad, though formal roles such as COR, COTR, or PCO are not explicitly designated. No contract value, pricing details, or formal evaluation factors are provided, and while environmental and regulatory compliance is clearly required, standard FAR clauses, packaging, marking, inspection criteria beyond broad environmental statutes, or detailed delivery terms are absent from the documentation. The solicitation, posted January 28, 2026, references no submission deadlines, proposal formats, or award methodology, and no socioeconomic certifications, UEI, CAGE codes, or federal representation statements are included.