0H240 HUM 254 Culvert Rehab Project Initial Study Negative Declaration

0H240 HUM 254 Culvert Rehab Project Initial Study Negative Declaration

The proposed project is located on State Route 254 in Humboldt County. The project begins north of US 101 at post mile (PM) 0.00 and ends 1.9 miles north of Holmes Flat Road at PM 43.00. The purpose of the project is to rehabilitate existing drainage systems to good condition, reduce sediment loads to the Eel River and South Fork Eel River, and remediate fish passage barriers. The project is needed to repair failed drainage systems, prevent potential roadway damage resulting from drainage system failures, and to reduce sediment to the Eel River and South Fork Eel River. The existing damaged culverts deliver sediment to the Eel River and South Fork Eel River (which are both currently listed as an impaired water body that exceeds the Total Maximum Daily Load (TMDL) for sediment. The project proposes to rehabilitate drainage systems, which would include placing or replacing drainage inlets (DI), headwalls, armoring, downdrains, gravel, stream restoration at Chadd Creek and Mowry Creek, and upsizing or extending culverts, where applicable.

unincorporated area

Humboldt

Countywide

California Air Resources Board (ARB), California Department of Conservation (DOC), 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 Transportation, District 1 (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, North Coast Region 1 (RWQCB), California State Lands Commission (SLC), California Transportation Commission (CATC), Department of Toxic Substances Control, Office of Historic Preservation, State Water Resources Control Board, Division of Drinking Water, State Water Resources Control Board, Division of Water Quality

Transportation:Highway/Freeway

Site Plan

Aesthetics, Air Quality, Biological Resources, Cultural Resources, Drainage/Absorption, Energy, Flood Plain/Flooding, Geology/Soils, Greenhouse Gas Emissions, Hazards & Hazardous Materials, Hydrology/Water Quality, Land Use/Planning, Mineral Resources, Noise, Population/Housing, Recreation, Transportation, Tribal Cultural Resources, Utilities/Service Systems, Vegetation, Wetland/Riparian, Wildfire