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Preliminary DFIRMs
Mississippi Coastal Mapping Project

Thank you for visiting the Mississippi Coastal Mapping Project Web site.  This site has been developed through the combined efforts of the Project Team members—the Federal Emergency Management Agency (FEMA), Mississippi Emergency Management Agency (MEMA), and the Mississippi Department of Environmental Quality (MDEQ).

We are pleased to announce that the restudy of flood hazards in Hancock, Harrison, and Jackson Counties has been completed and Preliminary versions of modernized National Flood Insurance Program maps, called Digital Flood Insurance Rate Maps (DFIRMs), and associated Flood Insurance Study (FIS) reports are now available for viewing or download.

  • If you would prefer to view or download the digital (electronic) version of the DFIRMs and FIS reports, please visit the Preliminary DFIRMs page and follow the instructions provided.
  • If you would prefer to view a paper copy of the Preliminary DFIRMs and FIS reports in person, you can view them at your local Community Map Repository.

Please note: The Preliminary versions of the DFIRMs should not be used for flood insurance rating purposes; Also, the Preliminary versions of the DFIRMs should not be used for floodplain management purposes unless or until communities choose to formally adopt them. The Preliminary versions of the DFIRMs and FIS reports do, however, provide the best available flood hazard and risk information for Hancock, Harrison, and Jackson Counties because they were developed using the latest engineering analysis methods and state-of-the-art technology, and they are based on current conditions. Please consult your local floodplain administrator if you have questions about which flood map(s) or elevation(s) to use during the rebuilding process along the Gulf coast.

To explain the choices that exist for those individuals who would like to change the flood hazard and risk information shown on the DFIRMs and FIS reports, we have created a page on map change options.   Some communities have already taken advantage of these options, and the Project Team is reviewing the map change requests and supporting documentation and data.

To help explain the coastal engineering analyses that were an important part of the restudy and remapping project, the Project Team produced informative videos, which are available in English, Spanish, and Vietnamese. We hope that you find these videos helpful in understanding how the coastal engineering analyses were performed and how the results of the analyses were used to develop Base Flood Elevations and Special Flood Hazard Areas (high-risk areas) for presentation on the modernized DFIRMs. Definitions of these terms are provided on the Glossary and Acronyms page.