Tunnel Stabilization and Sewer Pipeline Replacement Project

Tunnel Stabilization and Sewer Pipeline Replacement Project

Project Description The South Coast Water District (District) operates the Beach Interceptor Sewer Tunnel (Tunnel) extending approximately two miles from South La Senda Drive in Three Arch Bay north to Aliso Beach in the City of Laguna Beach, California. In 2016, the District embarked on the Tunnel Stabilization and Sewer Pipeline Replacement Project (Project), a multi-year construction project to stabilize the tunnel. and install a new sewer pipeline. Construction work has been performed through four independent phased construction contracts.

Laguna Beach

Orange

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, South Coast Region 5 (CDFW), California Department of Parks and Recreation, California Department of State Parks, Division of Boating and Waterways, California Department of Transportation, District 12 (DOT), California Department of Water Resources (DWR), California Native American Heritage Commission (NAHC), California Natural Resources Agency, California Regional Water Quality Control Board, San Diego Region 9 (RWQCB), California State Lands Commission (SLC), Office of Historic Preservation, State Water Resources Control Board, Division of Water Quality

Other (Sewer Pipeline)

Noise, Transportation