FEMA further modernized flood maps with the introduction of the Digital Flood Insurance Rate Map (DFIRM) - An interactive flood map that can be accessed, viewed, downloaded and used on a computer screen.

Digitization also allowed flood data to be linked into other databases, typically via a Geographic Information System (GIS). This linkage allows the flood layer to be displayed with other digital products such as aerial photography and improved topographic data such as Digital Elevation Models. DFIRM data can also be used to tie in Flood Insurance Study data and allow easier access to information such as hydrologic and hydraulic models, flood profiles, and floodway data tables.

FEMA’s current Risk Mapping, Assessment and Planning program allows for the enhancement of DFIRMs to include additional risk assessment tools and community outreach support. Additional enhancements depend on community needs, available data, and funding. A review of needs and available data leads to recommendations concerning which options to exercise.

Printed FIRM and FIRMette

When printed on a plotter, DFIRMs have large panels, about 2’x3’.

FIRMettes are easy-to-print, at-scale portions of the digital FIRM. The FIRMette contains the legend, scale, north arrow plus key information from the title block of the original full-size FIRM panel.

FEMA was able to develop a web service and software that allows users to select the portion of the DFIRM they want to print as a FIRMette. Users also select the size to printed page. Printing to a standard 8 ½”x11” “letter” size page is one of the options for printing FIRMettes.

In lesson 6, you will learn how to access a DFIRM on FEMA’s Map Service Center (MSC) website and print a FIRMette.