Eureka Creek Fish Passage Improvements 08-0128

Eureka Creek Fish Passage Improvements 08-0128

The project involves modifying an existing concrete box culvert (Post Mile Marker 2.95) placed within Corralitos Creek and making stream channel improvements in order to improve fish passage through the area. The proposed plan consists of rebuilding the failed culvert baffles on the existing box culvert floor, constructing a new downstream concrete grade control weir to backwater the culvert outlet and installing a new rock-fill weir downstream of the new concrete grade control structure. Upstream work is limited to re-configuring the gravel bar for about 50 feet upstream to improve passage and create a smooth transition across the gravel bar at the inlet. Material from the upstream gravel bar will be used for a rock toe trench, or berm, buried along the toe of the left wing wall at the upstream end of the culvert, at a location subject to regular, ongoing scour. The project site is located along Eureka Canyon Road within the vicinity of Post Mile 2.95.

Santa Cruz

California Department of Conservation (DOC), California Department of Fish and Wildlife, Bay Delta Region 3 (CDFW), California Department of Parks and Recreation, California Department of Transportation, District 5 (DOT), California Native American Heritage Commission (NAHC), California Regional Water Quality Control Board, Central Coast Region 3 (RWQCB), Department of Water Resources, Resources Agency

Other (Fish Passage)

Riparian Exception

Biological Resources, Geology/Soils, Hydrology/Water Quality, Noise, Transportation, Vegetation, Wetland/Riparian