Los Angeles Mayor Karen Bass, alongside Councilmember Monica Rodriguez and LADWP leaders, celebrated the completion of a four-mile segment of earthquake-resistant pipeline for the Foothill Trunk Line Project, marking the nation's largest and longest installation of its kind.
This critical infrastructure upgrade replaces an aging pipeline, originally built in the 1930s, with a new 54-inch diameter earthquake-resilient pipeline utilizing welded steel and Earthquake Resistant Ductile Iron Pipe (ERDIP) with flexible joints. The project aims to enhance water service reliability, improve water quality, and build resilience against seismic activity for Angelenos.
Mayor Bass emphasized the importance of proactive infrastructure work, stating, "This historic project is an example of the critical, proactive infrastructure work that is happening behind the scenes, but makes a real difference for Angelenos." Councilmember Rodriguez added that upgrading water infrastructure is a matter of public safety and equity, protecting neighborhoods from seismic risks and ensuring water for first responders.
Allan Marks, President of the Board of Water and Power Commissioners, highlighted the modernization efforts, while David W. Hanson, LADWP’s Interim General Manager, noted the department's commitment to dependable water, having nearly tripled annual mainline pipe replacement to 240,000 feet per year. LADWP has installed 67.2 miles of earthquake-resilient pipe since 2012.
This project is part of broader infrastructure investments, including new groundwater treatment facilities in North Hollywood that will treat up to 43 million gallons of contaminated groundwater daily. These efforts align with Mayor Bass’ Climate Action Plan, targeting 70% local water supply by 2035, and her Capital Infrastructure Program.