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The Federal Emergency Management Agency (FEMA) has established standard procedures for the processing of a new or updated National Flood Insurance Program (NFIP) flood map. These standard procedures have been and will continue to be followed in the processing of the Digital Flood Insurance Rate Maps (DFIRMs) and accompanying Flood Insurance Study (FIS) reports for Hancock, Harrison, and Jackson Counties. Detailed information on the flood mapping process is documented below and in several FEMA publications.

Map Adoption Milestones

The map adoption milestones for each county are accessible through the links below.

Mapping Process Documents

Detailed information on the flood mapping process is documented in the following FEMA publications:

The major phases of the flood mapping process for a countywide flood map are listed below. For additional information on each phase, click on the links below.

  • Mapping Needs Assessment—During this phase, FEMA, State, and community officials evaluate whether the flood hazard and risk data and other data shown on the current effective Flood Insurance Rate Maps (FIRMs) and FIS reports are up to date and accurate.
  • Project Scoping—A series of activities are performed by FEMA, State, and community officials during this phase to better define the requirements for the study/mapping project to be undertaken.
  • Data Development/Floodplain Mapping—The activities performed during this phase include acquisition/development of topographic and cross-section data needed for engineering analyses, performance of engineering (hydrologic and hydraulic) analyses, and production of the DFIRM and FIS report.
  • Preliminary/Post-Preliminary Processing—During this phase, community officials and residents are provided with multiple opportunities to review and comment on the DFIRM panels and FIS reports, and FEMA and State officials work with community officials to address comments from community officials and residents and to help community officials adopt the DFIRM and appropriate floodplain management ordinances.