State Route 37 Sears Point to Mare Island Improvement Project

State Route 37 Sears Point to Mare Island Improvement Project

Caltrans is proposing traffic operational improvements to State Route 37 in Sonoma, Napa, and Solano counties between Sears Point (Son-37-Post Miles 2.9/6.2) and Mare Island (Sol-37-Post Miles 0.0/R7.4) to provide congestion relief, reduce peak travel times, and increase vehicle occupancy. The four build alternatives proposed consider a range of lane configurations as follows: One that converts existing shoulders to create a three-lane facility to provide part-time peak hour congestion relief; one that provides a three-lane facility by installing a movable median barrier for peak hour directional congestion relief; a full-time, four-lane facility with 4-foot shoulders; and a full-time, four-lane facility with 8-foot shoulders.

Napa, Solano, Sonoma

San Francisco Bay Area

California Air Resources Board (ARB), California Department of Conservation (DOC), California Department of Fish and Wildlife, Habitat Conservation Planning (CDFW), California Department of Fish and Wildlife, Marin Region 7 (CDFW), California Department of Forestry and Fire Protection (CAL FIRE), California Department of Parks and Recreation, California Department of Transportation, District 4 (DOT), California Department of Water Resources (DWR), California Native American Heritage Commission (NAHC), California Natural Resources Agency, California Public Utilities Commission (CPUC), California Regional Water Quality Control Board, San Francisco Bay Region 2 (RWQCB), California State Lands Commission (SLC), California Transportation Commission (CATC), Department of Toxic Substances Control, Office of Historic Preservation, San Francisco Bay Conservation and Development Commission (BCDC), State Water Resources Control Board, Division of Drinking Water, State Water Resources Control Board, Division of Water Quality, California Highway Patrol (CHP), California Department of Fish and Wildlife, Bay Delta Region 3 (CDFW)

California Highway Patrol (CHP), California Department of Fish and Wildlife, Bay Delta Region 3 (CDFW)

Transportation:Other (Roadway Renewal)

Operations Improvement

Aesthetics, Air Quality, Biological Resources, Cultural Resources, Cumulative Effects, Drainage/Absorption, Flood Plain/Flooding, Geology/Soils, Greenhouse Gas Emissions, Growth Inducement, Hazards & Hazardous Materials, Hydrology/Water Quality, Land Use/Planning, Noise, Public Services, Recreation, Transportation, Vegetation, Wetland/Riparian, Construction- related air quality, noise, GHG