State Route 12 Jameson Canyon Road Widening & State Routes 29/12 Interchange Project

State Route 12 Jameson Canyon Road Widening & State Routes 29/12 Interchange Project

The California Department of Transportation (Caltrans) proposes to widen the two lane conventional highway State Route 12 (Jameson Canyon) to a four lane conventional highway and improve the intersection to State Routes 29 and 12 to an interchange. The project involves both Napa and Solano County. The project will reduce the existing congestion by adding two lanes and solve the operational problem along the Jameson Canyon Road. The project has two viable build alternatives. A no-build alternative is also considered for the proposed project.

Fairfield, Napa

Napa, Solano

Air Resources Board, Transportation Projects, Cal Fire, California Department of Fish and Wildlife, Bay Delta Region 3 (CDFW), California Department of Parks and Recreation, California Highway Patrol, California Native American Heritage Commission (NAHC), California Public Utilities Commission (CPUC), Central Valley Flood Protection Board, Department of Water Resources, Resources Agency, Resources, Recycling and Recovery, San Francisco Bay Conservation and Development Commission (BCDC), State Water Resources Control Board, Division of Water Quality, California Department of Conservation (DOC), Caltrans, Division of Aeronautics

California Department of Conservation (DOC), Caltrans, Division of Aeronautics

Transportation:Local Road (Widening Jameson Canyon Road & 29/12 interchange)

Transportation Widening Project

Aesthetics, Agriculture and Forestry Resources, Air Quality, Biological Resources, Cultural Resources, Cumulative Effects, Economics/Jobs, Flood Plain/Flooding, Geology/Soils, Growth Inducement, Hazards & Hazardous Materials, Hydrology/Water Quality, Land Use/Planning, Noise, Population/Housing, Public Services, Recreation, Transportation, Vegetation, Wetland/Riparian