In summer 2010, the City of Los Angeles Department of Public Works completed upgrades on eight Low Flow Diversion (LFDs) structures, including several in the Pacific Palisades area. The LFDs will divert urban runoff to the sanitary sewer system during year-round dry weather, preventing stormwater from discharging to Santa Monica Bay, except during rain events.

To handle the increased flows of stormwater from the LFDs to the Hyperion Wastewater Treatment Plant, the Coastal Interceptor Relief Sewer (CIRS) is being built to provide additional capacity to the existing CIRS. The CIRS, along with other approved Proposition O projects, will assist the City in complying with the Santa Monica Bay Beaches Dry Weather Bacteria Total Maximum Daily Load (TMDL) requirement, making our beaches and bay waters safer and healthier while meeting Environmental Protection Agency and federal Clean Water Act regulations.
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Presentation

Project Information::

The City of Los Angeles is constructing a 4,500-foot gravity relief sewer between Will Rogers State Beach and the City of Santa Monica (near the Annenberg Community Beach House, 415 PCH). About 3,100 feet of the sewer will be built on PCH, and 1,400 feet in the parking lots for Will Rogers Beach and Santa Monica Beach Club.

Potential Traffic Impacts:

  • Reduced northbound and southbound traffic lanes throughout construction (see map for details);
  • Night work;
  • Construction noise;
  • Construction in beach parking lots during non-summer months (Labor Day to mid-May);
  • Loss of beach parking;
  • Detour provided to bicyclists riding through construction zone. Signage will mark bicycle path access points.
  • Pedestrian tunnel at W Channel Road to remain open.

Project Cost: $10 million
If you have questions or comments, please email the outreach coordinator or call (213) 978-0317. The project descriptions and designs illustrated here are conceptual and subject to change.