Improving Seismic Safety of Dams in California

by Donald H. Babbitt, Dep of Water Resources, Sacramento, United States,

Document Type: Proceeding Paper

Part of: Geotechnical Practice in Dam Rehabilitation


A search of the dam files at California's Division of Safety of Dams has revealed that at least 94 dams have been improved for seismic stability. The results of the search are tabulated and discussed. Improvements to seven of the dams are reviewed to illustrate the range of methods used and to note important factors. Design considerations in addition to liquefaction, stability, and settlement analyses are discussed. Reservoir restrictions and emergency responses are briefly covered.

Subject Headings: Seismic tests | Seismic effects | Dam safety | Soil settlement | Structural safety | Load and resistance factor design | Earthquake resistant structures | Structural stability | California | United States

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