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Closed Basin Lake

A natural lake from which water leaves primarily through evaporation and whose surface area exceeds or has exceeded 1 square mile at any time in the recorded past. NFIP-insured buildings that are subject to continuous lake flooding from a closed basin lake are covered under the provisions of Standard Flood Insurance Policy (SFIP).

Glossary Section
NFIP - National Flood Insurance Program
Last updated Mar 5, 2020