State Route 4 Culvert Replacement

State Route 4 Culvert Replacement

Caltrans proposes to rehabilitate or replace existing culverts on State Route 4, 88, and 89 in Alpine County. Existing drainage systems at the proposed locations have exceeded their design life and have deteriorated or failed. Certain culverts would be replaced with the existing size, and others would be upsized to maintain existing water flow capacity. The project would also upgrade or replace end treatments and headwalls as needed. To maintain and upgrade the existing facilities, work off the paved roadway, ground disturbance, work in the channel, and vegetation removal would be required. Permanent right-of-way acquisition, temporary construction easements, and work on federal lands would be required.

Alpine

Countywide

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 Transportation, District 10 (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 Regional Water Quality Control Board, Lahontan South Lake Tahoe Region 6 (RWQCB), California State Lands Commission (SLC), California Tahoe Conservancy, 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, Tahoe Regional Planning Agency (TRPA), California Department of Fish and Wildlife, North Central Region 2 (CDFW)

California Department of Fish and Wildlife, North Central Region 2 (CDFW)

Transportation:Highway/Freeway (SR 4, SR88, SR89)

Transportation project

Biological Resources, Cultural Resources, Greenhouse Gas Emissions