745 Whitney Drive Culvert Replacement Project

The purpose of the Project is to repair a failed storm-drain culvert serving the Whitney Drive drainage system near 745 Whitney Drive, South Lake Tahoe, El Dorado County, California. The existing 18-inch corrugated metal pipe failed at its connection point to a drain inlet on Whitney Avenue, which has resulted in the loss of supporting soil and the development of two voids/sinkholes beneath the roadway and along the property line of 745 and 749 Whitney Drive. The Project will involve temporary isolation of the culvert outlet with a coffer dam, dewatering of nuisance water, excavation and removal of the failed pipe and associated debris, replacement of approximately 100 linear feet of 18-inch CMP with 18-inch High Density Polyethylene pipe, connection of the new pipe to the existing drain inlet. repair of the former inlet connection, removal and replacement of a rock riprap apron at the point of discharge to Lake Tahoe, and restoration of temporarily disturbed areas.