New Bullards Bar Dam Atmospheric River Control (ARC) Spillway Project

New Bullards Bar Dam Atmospheric River Control (ARC) Spillway Project

YCWA is proposing the project to allow for releases from the Dam via the ARC Spillway at a lower Reservoir water elevation than is currently provided from the existing Primary Spillway. The project would provide operational flexibility for managing outflow at the Dam to reduce flood flows and flood stages downstream at Marysville and the Feather-Yuba River confluence, and to provide public safety benefits. The ARC Spillway would be operated conjunctively with the existing Primary Spillway to efficiently release flows downstream, including earlier passage of flows during large storm events. The ARC Spillway facility consists of an approach channel in the Reservoir, control structure, spillway chute, and discharge channel leading to the North Yuba River. The proposed project also includes permanently relocating a segment of Marysville Road over the ARC Spillway, relocating the existing Dam overlook site, and establishment of a permanent rock and soil disposal area on YCWA property. The project would be constructed over approximately 4 years.

unincorporated area

Yuba

Northern California

California Air Resources Board (ARB), California Department of Conservation (DOC), California Department of Forestry and Fire Protection (CAL FIRE), California Department of Parks and Recreation, California Department of Toxic Substances Control (DTSC), California Department of Transportation, District 3 (DOT), California Department of Water Resources (DWR), California Governor's Office of Emergency Services (OES), California Highway Patrol (CHP), California Native American Heritage Commission (NAHC), California Natural Resources Agency, California San Joaquin River Conservancy (SJRC), California State Lands Commission (SLC), Central Valley Flood Protection Board, Delta Protection Commission, Delta Stewardship Council, Office of Historic Preservation, State Water Resources Control Board, Division of Water Quality, State Water Resources Control Board, Divison of Financial Assistance, California Regional Water Quality Control Board, Central Valley Sacramento Region 5 (RWQCB), State Water Resources Control Board, Division of Water Rights, California Department of Fish and Wildlife, North Central Region 2 (CDFW)

California Regional Water Quality Control Board, Central Valley Sacramento Region 5 (RWQCB), State Water Resources Control Board, Division of Water Rights, California Department of Fish and Wildlife, North Central Region 2 (CDFW)

Other (Spillway)

N/A

Aesthetics, Agriculture and Forestry Resources, Air Quality, Biological Resources, Cultural Resources, Cumulative Effects, Flood Plain/Flooding, Geology/Soils, Greenhouse Gas Emissions, Growth Inducement, Hazards & Hazardous Materials, Hydrology/Water Quality, Noise, Public Services, Recreation, Transportation, Tribal Cultural Resources, Vegetation, Wetland/Riparian, Wildfire