Flood Inundation Mapping Program

The USGS Flood Inundation Mapping (FIM) Program helps communities protect lives and property by providing tools and information to help them understand their local flood risks and make cost-effective mitigation decisions. Its main purposes are to 1) Partner with local communities to assist with the development and validation of flood inundation map libraries and 2) Provide online access to flood inundation maps along with real-time streamflow data, flood forecasts, and potential loss estimates. The flood indundation mapper shows where flooding would occur given a selected stream condition and historical flood information and potential loss estimates based on the severity of the flood.