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Contra Costa Water District outlines canal replacement plan that would bury Contra Costa Canal across Antioch
Summary
CCWD presented a multi‑billion‑dollar, phased program to replace the aging open Contra Costa Canal with buried pipeline sections to improve safety, water quality and reliability; CCWD plans field geotechnical work starting in fall and a programmatic EIR with construction targeted to begin in 2032, subject to funding and permitting.
Contra Costa Water District officials briefed the Antioch City Council on March 24 on a long‑term Contra Costa Canal replacement program that would progressively replace the open canal with enclosed, buried pipeline segments.
CCWD Vice President Antonio Martinez and General Manager Rachel Murphy said the canal, built in the 1930s and now largely concrete‑lined, presents four principal risks: life‑safety hazards to people accessing the open canal, seasonal water‑quality problems (including algae blooms), supply vulnerability (earthquakes and landslides can interrupt conveyance) and rising…
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