Union Pacific Railroad (UPRR) Canyon Subdivision Milepost 248.98 Bridge Replacement Project

The Union Pacific Railroad Canyon Subdivision Milepost 248.98 Bridge Replacement Project, located in Plumas County, California, involves replacing an existing 60-foot-long, 72-inch-diameter corrugated metal pipe culvert with a 100-foot-long, 60-inch-diameter smooth steel pipe culvert. The new structure will be installed using horizontal auger boring through the railroad embankment, positioned approximately 6 feet east of and parallel to the existing culvert. The project includes stabilizing the inlet and outlet with riprap and grouting the existing culvert for abandonment in place. All activities will be conducted within the existing right-of-way, with materials transported by truck and debris hauled offsite. This project is categorized as exempt from the California Environmental Quality Act review under section 15302. It requires authorization under Section 404 of the Clean Water Act from the U.S. Army Corps of Engineers and Section 401 Water Quality Certification from the California Regional Water Quality Control Board, Central Valley Region, Redding Office. Key administrative contacts include Lynn Coster of the Regional Water Quality Control Board and Stephen Cheney of Union Pacific Railroad. The project is identified by solicitation number 5A32CR00256 and NAICS code 237310.