Spillway Design Issues - Association of State Dam Safety Officials
Spillway Design Issues - Association of State Dam Safety Officials
Spillway Design Issues - Association of State Dam Safety Officials
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<strong>Dam</strong> Overtopping <strong>Issues</strong>• Failure <strong>of</strong> dams due to overtopping is a commonfailure mode, accounting for 30 percent <strong>of</strong> thefailures in the U.S. over the last 75 years• Many older dams may have been designed for floodsthat no longer represent a remote flood event• Many dams can not pass the current ProbableMaximum Flood without overtopping• Most embankment dams would likely not withstandsustained overtopping <strong>of</strong> a foot or more without ahigh probability <strong>of</strong> failure
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