IOWA DRAFT FLOOD HAZARD MAPS

Draft Flood Hazard Maps
   One-percent annual (100-year) flood boundary and 0.2-percent annual (500-year) floodplain boundaries
Preliminary Flood Insurance Rate Maps
   One-percent annual (100-year) flood boundary and 0.2-percent annual (500-year) floodplain boundaries under review for adoption by FEMA and the NFIP
Flood Insurance Rate Maps
   One-percent annual (100-year) flood boundary and 0.2-percent annual (500-year) floodplain boundaries adopted by FEMA and the NFIP. While these data are provided for informational purposes, any data to be used for regulatory purposes should be obtained directly from FEMA.
Draft flood hazard map data are provisional and should not be used for regulation, enforcement, or insurance rating purposes. They are intended to be used for outreach, advisory, and review purposes only.

MAP WEB SERVICES
Draft flood hazard map data are available through IDNR-hosted web services for display in other web or software environments.
Flood Hazard Areas
https://programs.iowadnr.gov/geospatial/rest/services/SurfaceWaters/FloodHazardAreas/MapServer
GIS DATA ACCESS
Draft flood hazard map data are available GIS format from the Iowa Geodata Clearinghouse at this link:
https://geodata.iowa.gov/dataset/flood-risk-areas
GIS data files are available upon request. Please contact IDNR NRGIS Administrator Casey Kohrt.
Casey Kohrt
NRGIS / Geospatial Administrator
casey.kohrt@dnr.iowa.gov
Phone: 319-335-1353