Public Works - Old Creek Road Culvert Replacement Project; ED14-109 (40106181)

Public Works - Old Creek Road Culvert Replacement Project; ED14-109 (40106181)

The San Luis Obispo County Public Works Department proposes to remove and replace 53 feet of corroded 36" corrugated metal pipe (CMP) with a smooth lined 48" high density polyethylene (HDPE) culvert. The project site is located on Old Creek Road P.M. 6.334, in the North County Planning Area Rock wing-walls on the inlet and outlet, which have no vegetation in them, will be removed and the asphalt section of the road will be excavated to remove the old CMP. After the CMP is remove the trench will need to be enlarged by excavating the existing road base. When the trench is large enough the County will install 53 feet of 48" HDPE, pack the sides and top with road base and tamp it down. The County will then form the wing-walls with the rocks that are present. The County will not change the amount of rock that is currently in place at the wing-walls, so the finished foot print will be the same. No removal of trimming of vegetation would be required to replace the culvert. The majority of the construction will be on the road. Project staging will occur within the existing County Right-of-Way.

San Luis Obispo

California Air Resources Board (ARB), California Department of Fish and Wildlife, Central Region 4 (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), California State Lands Commission (SLC), Department of Water Resources, Resources Agency

Other (Public Improvement)

Public Project

Air Quality, Cultural Resources, Hydrology/Water Quality, Wildlife