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Mr. John Winchester, P.E.


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Posted By John Winchester 04-14-2018 01:56 PM
Found In Egroup: Environment, Coasts, Oceans, & Infrastructure
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The additional two feet does not provide any additional flood frequency capacity. Rather, the regulation protects structures against the 500-year flood with a 2-foot safety factor to account for uncertainties in modeling and debris accumulation. It's like requiring freeboard on a reservoir or levee, ...