The LADWP Water System is the largest municipally owned and operated retail water utility in the country. Its mission is to provide customers with reliable, high quality and competitively priced water services in a safe, public, and environmentally responsible manner.
The Water System’s Capital Improvement Program is a ten-year plan focused on maintaining or replacing existing components of the Water System, and constructing new facilities to ensure LADWP fulfills its mission of providing reliable and high quality water to the residents of Los Angeles.
Many facilities pre-date World War II and are near the end of their useful lives. In addition to aging infrastructure, existing and anticipated changes in state and federal water quality regulations affect the way LADWP stores and treats water that arrives at the tap. LADWP is responding to these changes and improving its water quality by eliminating dependence on large in-city open reservoirs. LADWP is also instituting more comprehensive monitoring programs to ensure that the water delivered is the highest quality and meets all state and federal drinking water regulations.
Our Capital Improvement Program is divided into four major sections:
- Infrastructure Reliability
- Water Supply
- Regulatory Compliance
- Other Strategic Activities
LADWP has developed the Water Infrastructure Plan to establish the goals and targets for replacing and/or upgrading infrastructure.
To download the latest Ten Year Capital Plan, click on the below. Please note that this is a large file and will take some time to download.
Water Projects
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3rd Street Pipeline Replacement Project
The 3rd Street Pipeline Replacement Project is an important part of LADWP’s plan to accelerate the replacement of aging infrastructure. The new pipe will use earthquake-resistant ductile iron pipe to improve water service, fire protection and reliability for the community during emergencies. This replacement project will provide greater flexibility and enhanced overall reliability for customers in the community.
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99th Street Water Treatment Plant Project
LADWP will construct the 99th Street Water Treatment Plant in South Los Angeles to provide chloramine treatment to the groundwater supply distributed by the 99th Street Wells Pumping Station Complex.
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Arlington Heights Main Line Replacement Project
The Arlington Heights Main Line Project is an important part of LADWP’s plan to accelerate the pace of replacing aging infrastructure. The existing pipeline will be replaced with a 6-inch, 8-inch and a 12-inch mainline to improve the water infrastructure in the area and ensure reliability.
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Barham Mainline Improvement Project
The Barham Mainline Improvement Project will install 2,853 feet of 20-inch mainline pipe along a section of Barham Blvd. from just south of Craig Dr. to just south of Lakeside Plaza Dr. Additional fire services will be installed.
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Benedict Canyon Water Pipeline Replacement
Page describing the Benedict Canyon Water Pipeline Replacement project.
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Broadway Mainline Replacement Project
The Broadway Mainline Project is an important part of LADWP’s plan to accelerate the pace of replacing aging infrastructure. The new mainline will provide several benefits, including improved water service, enhanced fire protection for the community, and greater reliability and operational flexibility for LADWP.
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Charing Cross and Hilgard Bypass Line
LADWP will install approximately 385 feet of 36‐inch diameter water pipeline at Sunset Boulevard and Hilgard Avenue.
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City Trunk Line North
As part of its Water Infrastructure Improvement Program, LADWP will replace over 6 miles of an aged pipeline with a new, seismically resilient pipeline.
More Projects and Initiatives
Get more projects and initiative from LADWP.