![]() Now, is there any scenario in which this might happen? I’m not a hydrologist, so I can’t answer that. The water level would have to rise another 18.5 feet (!) in order to reach the top of the dam itself, which would never happen because the emergency spillway flow (which occurs over a natural ridge made of bedrock) would handle the excess flow long before the lake level ever reached that point. ![]() At this writing the lake level is 902.5 ft, which is 1.5 ft. The emergency spillway (which is now in use) drains excess water along its 1,700 ft length when the lake level exceeds 901 ft. ![]() While it is said, “never say never”, after researching this issue I’m pretty convinced that it would be nearly impossible for the Oroville Dam to fail.Įven though it is an earthfill embankment dam, which can be destroyed if the dam is topped, the following Metabunk graphic demonstrates why the Oroville design is virtually foolproof:
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