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Dam Breaks and Alluvial Cycles, Pleasant Valley ... - NORFMA

Dam Breaks and Alluvial Cycles, Pleasant Valley ... - NORFMA

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Flooding Downstream<br />

Higher Flooding Potential Downstream<br />

- Excessive sediment deposits:<br />

- Reduce natural regulatory functions<br />

- Fill channels, flood waters can’t be stored<br />

- Stream channel geometry changes<br />

- Straightens & shortens channel<br />

- Limits flood dispersal <strong>and</strong> increases velocity

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