Zinfandel Bridge Fish Passage Project

Zinfandel Bridge Fish Passage Project

The project includes the removal of an existing barrier to upstream fish migration in the Napa River under the Zinfandel Lane Bridge. The Zinfandel Lane Bridge, built in 1913, consists of a stone arch structure with 2 bays to convey flows from the Napa River. The Project includes removal of the concrete apron from the River and construction of two new flow channels under the bridge to convey flows and provide fish passage. The flow channels would be constructed of concrete. To provide favorable fish passage conditions for a wider range of river flows, the two channels would differ in their function and configuration. One channel would provide fish passage while the other would pass river flow. The primary difference between the two channels would be their cross-sectional shape.

St. Helena

Napa

California Department of Conservation (DOC), California Department of Fish and Wildlife, Bay Delta Region 3 (CDFW), California Department of Parks and Recreation, California Department of State Parks, Division of Boating and Waterways, California Department of Transportation, District 4 (DOT), California Highway Patrol, California Native American Heritage Commission (NAHC), California Regional Water Quality Control Board, Central Valley Sacramento Region 5 (RWQCB), California State Lands Commission (SLC), Department of Water Resources, Office of Historic Preservation, Resources Agency, State Water Resources Control Board, Divison of Financial Assistance

Aesthetics, Agriculture and Forestry Resources, Air Quality, Biological Resources, Cultural Resources, Cumulative Effects, Flood Plain/Flooding, Geology/Soils, Hazards & Hazardous Materials, Hydrology/Water Quality, Land Use/Planning, Noise, Public Services, Recreation, Solid Waste, Transportation, Vegetation, Wetland/Riparian, Wildfire