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FEMA Flood Data Command

CivilGEO software can display the FEMA digital Flood Insurance Rate Map (FIRM) directly on the Map View. The Map View must be assigned a coordinate reference system so that the FEMA FIRM map can be correctly georeferenced to match the map coordinates.

The FEMA digital FIRM map contains the following data:
  • Flood Hazard Zones & Boundaries
  • Flood Structures (i.e., roadway crossings, dams, etc.)
  • Levees
  • Base Flood Elevations (BFE)
  • Cross Sections
  • High Water Marks
  • River Mile Markers and more…

Follow the steps below to display the FEMA FIRM map on the Map View:

    1. From the Map Data ribbon menu, click the FEMA Flood Data dropdown combo box and then select the FEMA Flood Data command.
      FEMA Flood Data Command
    2. The FEMA Flood Data dialog box will be displayed.
      FEMA Flood Data Dialog Box
    3. In the General Specifications section, the default layer group name is FEMA Flood Data and can be changed by the user.
    4. In the Select Data to Display section, the user can choose the FEMA map layers to display on the Map View. The user can use the provided default selection, as these are typical layers used. However, the user can also experiment with the various layers to customize which FEMA map layers will be displayed on the Map View.
    5. When options have been properly defined, click the [OK] button, and the software will download and display the FEMA flood map on the Map View.
      FEMA Flood MapTo return to the default settings, click the [Default] button.
    6. As you zoom and pan about, the FEMA flood map will automatically update to fill the extent of the Map View display.
    7. The software will then place the FEMA Flood Data layer group in the Map Data Layers panel. The FEMA Flood Data layer will contain a legend detailing the contents of the displayed FEMA flood map Expand the layer to see the legend details.
      FEMA Flood Data Map Layer

About the Author Chris Maeder

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