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Before 2003, more than 70 percent of the nation's flood maps were at least 10 years old. Those maps were developed using what is now outdated technology, and more importantly, many no longer accurately reflect the current flood hazards. Congress passed a law and appropriated funds in 2003 directing FEMA to create the five-year Flood Map Modernization program, which used more current data and technology to update the maps. Consequently, many property owners are finding their buildings have been accurately mapped into higher risk areas. Aging flood control infrastructure, including levees, dams, and other structures, have also resulted in large numbers of properties being newly mapped into SFHAs, where they are required by lenders to purchase flood insurance.

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Flood Insurance Maps & Information
Last updated Feb 5, 2020

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