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San Luis Delta-Mendota Water Authority briefs Los Banos on Cis Dam raise and storage expansion

6441399 · September 18, 2025
AI-Generated Content: All content on this page was generated by AI to highlight key points from the meeting. For complete details and context, we recommend watching the full video. so we can fix them.

Summary

San Luis & Delta‑Mendota Water Authority presented the San Luis Reservoir safety-of-dams retrofit and an associated storage-raising project that would add 130,000 acre‑feet of capacity when complete. Staff described schedule, seismic reasons for the work and anticipated traffic impacts where Highway 152 crosses Cottonwood Bay.

Pablo Auriabe, chief operating officer for the San Luis & Delta‑Mendota Water Authority, briefed the Los Banos City Council on Sept. 17 about the U.S. Bureau of Reclamation’s San Luis Reservoir safety‑of‑dams (SoD) retrofit and a joint storage‑increase project.

Auriabe said the SoD project is the largest safety‑of‑dams effort undertaken by Reclamation for San Luis Reservoir. It will fortify foundations, add 10 feet of freeboard and address updated seismic concerns (the Ortigalita Fault was mentioned). In partnership with Reclamation, the water authority proposes an additional 10 feet atop the SoD raise — for a combined 20‑foot crest raise — that would…

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