• Protecting local waterways
 by addressing aging infrastructure

  • Restoring a tunnel originally built in 1937

  • Modernizing for seismic, capacity, and service for the 21st Century

  • This vital sewer system serves nearly half of Los Angeles County

A sewer system that serves nearly half of Los Angeles County.

The Clearwater Project is part of efforts to create a more resilient system for managing treated wastewater from our Carson facility.

It will replace the tunnel system built in the 1930s, extending to the ocean outfalls off the Palos Verdes Peninsula to meet 21st-century standards and population needs.

Project Updates

Western Avenue
Tunnel Construction
Royal Palms Beach

Western Avenue

Updates on construction activities affecting Western Ave traffic.

All Western Ave Updates
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Traffic Notice for Western Avenue for Saturday, January 24
Traffic Notice for Western Avenue for Saturday, January 24

Exploratory drilling is scheduled to continue on southbound Western Avenue this week, including Saturday, January 24 from 9 am to 3 pm.

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Drilling Temporarily Paused for Thanksgiving
Drilling Temporarily Paused for Thanksgiving

No drilling will take place during the week of Thanksgiving, November 24-30.

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Drilling on Western and 5th Has Begun
Drilling on Western and 5th Has Begun

Drilling has begun on Western Avenue across from the 5th Street cul-de- sac, requiring one southbound traffic lane closure.

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Tunnel Construction

Updates on the tunnel construction activities and progress

More Tunnel Updates
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Update on the Clearwater Project from the Los Angeles County Sanitation Districts
Update on the Clearwater Project from the Los Angeles County Sanitation Districts

On Monday, December 8th, Cal/OSHA authorized the Sanitation Districts and its contractors permission to re-enter the Clearwater Tunnel.

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Written Response to City and County of Los Angeles
Written Response to City and County of Los Angeles

This is a copy of our response sent to Supervisor Janice Hahn and LA City Councilmember Tim McOsker's office in reply to their request received by the Sanitation Districts on July 10th.

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U.S. EPA and the Sanitation Districts Celebrate $568 Million in Low-Interest Loans
U.S. EPA and the Sanitation Districts Celebrate $568 Million in Low-Interest Loans

On May 23, senior officials celebrated $441 million in Water Infrastructure Finance and Innovation Act loans and $127 million in State Revolving Fund loans for the Clearwater Project.

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Royal Palms Beach

Updates on the activities around Royal Palm Beach

ALL Royal Palms Beach Updates
Featured
Temporary Sound Wall Installation Underway; Beach Remains Open
Temporary Sound Wall Installation Underway; Beach Remains Open

Crews have begun installing a temporary sound wall to secure the construction area. The wall is expected to be completed in the coming weeks.

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Construction Moves Forward at Royal Palms Beach
Construction Moves Forward at Royal Palms Beach

Construction is underway at Royal Palms Beach. The entrance kiosk has been successfully relocated, and crews have begun building the sound wall to secure the area.

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Preliminary Construction at Royal Palms Beach Started
Preliminary Construction at Royal Palms Beach Started

Preliminary construction at Royal Palms Beach ahead of the expected arrival of our tunnel boring machine has started with the relocation of beach amenities.

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  • About

    Learn how this critical infrastructure project protects our waterways.

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  • Updates

    Read the latest project news, including updates specific to your area.

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