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Flood Overtopping Failure of Dams

Flood Overtopping Failure of Dams

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Initial Risk Screening Based on<br />

PMF<br />

• Exceptions to screening out failure mode if no<br />

overtopping<br />

– PMF is not current and is expected to increase<br />

– PMF is for a certain storm event and a more critical<br />

storm event may exist<br />

– The spillway is gated and there are concerns that the<br />

spillway may not be operated as intended<br />

– Reasons to believe assumptions made in flood<br />

routing may not be achieved during an actual flood<br />

16

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