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Flood Hazard Mapping Assistance

FEMA's Map Service Center serves as the starting platform for various "map viewers" and map data. This page offers access to resources like the National Flood Hazard Layer, Web Map Service in Google Earth, and FIRMette Tutorial. While numerous options are available, here are some notable map choices.

  • Flood Maps Search by State and County (PDF downloads available for each panel)
  • FIRMettes legal map document created from portion of map for a specific area
  • DFIRM Databases GIS Data
  • MapViewer with interactive map with layer controls
  • Documents, Publications and Forms

FEMA's Mapping Information Platform offers a collection of tips and tutorials covering various aspects of the National Flood Insurance Program (NFIP). The tutorials encompass a broad spectrum of information, ranging from fundamental map reading skills to in-depth guidance on specialized hydraulic software. Here's a brief sampling:

  • LOMA/LOMR-F letter of map amendment, -and based on fill material
  • Introduction to GIS
  • How to Read a FIRM
  • How to Read a Flood Insurance Study
  • National Flood Frequency

DATUMS & BENCHMARKS used in the mapping process can be retrieved by state, then county, from the National Geodetic Survey (NGS). The Help Button contains useful information on the acronyms used in the listing of the stations in the datasheets. Some of the information on the data sheet for each point:

  • Current/ non-current Survey Control
  • Datum for horizontal and vertical values
  • Position (horizontal and vertical)
  • History of monument
  • Station description