A flood risk assessment evaluates an area for its potential to experience flooding and damage within 100-year flood zones that governments designate, according to ArcGIS. Flood risk assessment maps show natural and man-m... More »

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Various 100-year floodplain maps are a product of the U.S. Department of Homeland Security's Federal Emergency Management Agency and are available on its website at msc.fema.gov/portal and at its regional offices. These ... More »

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The 100-year floodplain is land that is predicted to flood during a 100-year storm, which has a 1 percent chance of occurring in any given year according to the U.S. Geological Survey. A 100-year storm is defined by the ... More »

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Flood Zone X is an area designated by the Federal Emergency Management Agency as having a moderate or minimal risk of flooding, explains FEMA. On the Flood Insurance Rate Map, Zone X shaded refers to an area with moderat... More »

A flood insurance rate map, or FIRM, is the official map that outlines a community's floodplain boundaries, flood elevations and flood zones. FIRMs, created by the National Flood Insurance Program, are used by property o... More »

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The Federal Emergency Management Agency (FEMA) identifies flood zones by assessing the risks present in certain areas, including storm tides, river flow and rainfall, among other statistics, according to the FEMA website... More »

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Flood insurance covers damage and loss to a building and personal property as a result of a flood, according to the National Flood Insurance Program. Building insurance and personal contents insurance are the two compone... More »

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