Requa Road at Hunter Creek Bridge Replacement Project

Requa Road at Hunter Creek Bridge Replacement Project

The County of Del Norte (County) is proposing to improve public safety and increase hydraulic capacity by replacing the existing bridge (No. 01C-0011) on Requa Road over Hunter Creek and construct the necessary roadway approach improvements. The new bridge would have a length of 210 feet with a 150-foot main span and a 60-foot approach span and would provide two 11-foot traffic lanes and 5-foot shoulder for a clear width of 32 feet, and barrier rails along both sides. The structure type would be a two-span steel girder bridge supported by abutments and a pier on large diameter driven cast-in-steel shell piles. The existing bridge would be removed and disposed of offsite. The bridge deck elevation would be raised in order to have a minimum bridge deck elevation slightly higher than the 100-year Klamath River backwater elevation to minimize future “redo” work and to accommodate future U.S. Route 101 and Requa Road grade raise projects. Stormwater treatment is anticipated at the northeast and northwest areas of the project site and would be installed during Phase 2 of the proposed project construction. Water from the bridge deck and roadway would be piped to detention basins located within the Hunter Creek floodplain but outside of the normal flow areas.

Crescent City

Del Norte

Countywide

California Air Resources Board (ARB), California Coastal Commission (CCC), California Department of Conservation (DOC), California Department of Fish and Wildlife, Marin Region 7 (CDFW), California Department of Fish and Wildlife, Northern and Eureka Region 1 (CDFW), California Department of Forestry and Fire Protection (CAL FIRE), California Department of Parks and Recreation, California Department of Toxic Substances Control (DTSC), California Department of Transportation, District 1 (DOT), California Department of Water Resources (DWR), California Highway Patrol (CHP), California Native American Heritage Commission (NAHC), California Natural Resources Agency, California Regional Water Quality Control Board, North Coast Region 1 (RWQCB), California State Lands Commission (SLC), Office of Historic Preservation, State Water Resources Control Board, Division of Drinking Water, State Water Resources Control Board, Division of Water Quality

Transportation:Other (Bridge Replacement )

Transportation

Aesthetics, Agriculture and Forestry Resources, Air Quality, Biological Resources, Coastal Zone, Cumulative Effects, Drainage/Absorption, Flood Plain/Flooding, Geology/Soils, Growth Inducement, Hazards & Hazardous Materials, Hydrology/Water Quality, Land Use/Planning, Mineral Resources, Noise, Population/Housing, Public Services, Recreation, Schools/Universities, Solid Waste, Vegetation, Wetland/Riparian, Forest Land/Fire Hazard, Soil Erosion/Compaction/Grading, Traffic Circulation,