Flood hazard areas are determined using statistical analyses of records of river-flow, storm tides, and rainfall; information obtained through consultation with the community; floodplain topographic surveys; and hydrologic and hydraulic analyses. The FIS covers those areas subject to flooding from rivers and streams, along coastal areas and lake shores, or shallow flooding areas. Actual copies of FISs can be ordered from MSC. The results of the Flood Insurance Study that define flood risk areas for each community are available in a technical document that provides information used for floodplain management. This is known as the Flood Insurance Study Report. Regulatory floodways and other floodplain management information may be shown on a separate flood map known as a Flood Boundary and Floodway Map (FBFM). If the FBFM for the FIS is available, it is distributed with the Flood Insurance Study report and available to order from MSC.

The Flood Insurance Study Report and FBFMs can be reviewed at the community office responsible for floodplain management activities in your community. Copies of the reports may also be obtained from the Map Service Center. See the Order and Cost for detailed ordering information