State Route 121 Tulucay Creek Bridge Replacement Project

State Route 121 Tulucay Creek Bridge Replacement Project

The Tulucay Creek Bridge Replacement Project is located along State Route 121/ Soscol Avenue, at Post Mile 6.4-6.5 in Napa, California. The purpose of the Project is to restore the structural integrity of the Tulucay Creek Bridge to provide safe continued use by the traveling public. The Project proposes to replace the existing two-span, concrete Tulucay Creek Bridge (Bridge 21-0003) with a single-span, precast, pre-stressed, concrete box bridge. The existing bridge is 45 feet long and 77 feet wide and has four 12-foot lanes (two in each direction), two 6-foot outside shoulders (one in each direction), and a 9-foot median. Two build alternatives are being considered: Alternative 2 proposes a new bridge 77 feet long, 100 feet wide, including the bridge rails and would have four 12-foot lanes (two in each direction), two 8-foot shoulders, two 10-foot sidewalks, and a 14 foot median. Alternative 3 would be the same as Alternative 2 except the bridge would be 96 feet wide and the southbound sidewalk would be 6 feet wide as opposed to 10 feet. One of the potential consequences of the Project would be the potential adverse effect to an archaeological site due to the proposed excavation and construction of the Project's new abutments, utility relocation, and drainage.

Napa

Napa

Citywide, Countywide, Northern California, San Francisco Bay Area

California Air Resources Board (ARB), California Department of Conservation (DOC), California Department of Parks and Recreation, California Department of Toxic Substances Control (DTSC), California Department of Transportation, District 4 (DOT), California Department of Water Resources (DWR), California Highway Patrol (CHP), 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), Office of Historic Preservation, State Water Resources Control Board, Division of Drinking Water, State Water Resources Control Board, Division of Water Quality, California Department of Fish and Wildlife, Bay Delta Region 3 (CDFW)

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

Transportation:Highway/Freeway (Bridge Replacement)

Bridge Replacement

Aesthetics, Air Quality, Biological Resources, Cultural Resources, Cumulative Effects, Greenhouse Gas Emissions, Hazards & Hazardous Materials, Mandatory Findings of Significance, Noise, Transportation, Tribal Cultural Resources, Utilities/Service Systems, Wildfire