Ralston Afterbay Sediment Removal and Trash Rack Installation Project

The Ralston Afterbay Sediment Removal and Trash Rack Installation Project addresses the accumulation of approximately 40,000 cubic yards of sediment in the Ralston Afterbay following the 2022 Mosquito Fire, which has compromised the safe operation of the Low Level Outlet at the Ralston Afterbay Dam and the water delivery to the Oxbow Powerhouse via the Ralston-Oxbow Tunnel Intake. The project involves mechanical dredging using a crane-deployed excavator on barges to remove the sediment, with dewatering occurring on-site before the material is transported by truck approximately ten miles to the EBRL Sediment Disposal Area. Concurrently, the existing steel trash rack at the Low Level Outlet will be replaced with a new structural trash rack designed to maintain functionality even under future sedimentation events. The work is being conducted on U.S. Forest Service lands in Placer County, California, near Foresthill, and is classified under CEQA categorical exemptions for minor alterations and routine maintenance, eliminating the need for a full environmental impact report. The Placer County Water Agency is the lead agency responsible for executing and overseeing the project, with Heather Trejo, Environmental Scientist, serving as the primary point of contact and Jon Boland, Associate Engineer, as the technical liaison. No contract value, pricing details, or formal solicitation number are provided, and the project appears to be administered under a special-notice procurement without standard FAR clauses, evaluation factors, or detailed contract administration provisions such as COR/COTR assignments, invoicing protocols, or payment office information. The absence of formal clause references, bid submission instructions, or socioeconomic requirements suggests a streamlined approach consistent with state-level exempt public works activities.