Concrete is actually less safe than a earth dam. The problem with Oroville is poor maintenance and poor design of the secondary spillway.
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Concrete is actually less safe than a earth dam. The problem with Oroville is poor maintenance and poor design of the secondary spillway.
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Hoover is less safe than Oroville?
Yes, think of what failed at Oroville. It was not the dam; it was the concrete spillway. Also, in California, we have had three dam failures of arch-gravity dam similar to Hover. Earth dams are less susceptible to damage from earthquakes which is a big deal that in California. We have serval dams in SoCal that are concrete that haven’t been maintained and are considered high risk of failure.
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