IOWA FLOOD RISK MANAGEMENT MAP | IOWA FLOOD CENTER | DEPARTMENT OF NATURAL RESOURCES

FLOOD RISK MAPS

MAP NAVIGATION
- Select County
- Search Address
SCOUR-PRONE AREAS
- Scour-Prone Areas
FLOOD RISK GRADIENTS
- Flood Inundation Risk Gradients
FLOOD DEPTHS
- 50% Annual Chance (2-year)
- 20% Annual Chance (5-year)
- 10% Annual Chance (10-year)
- 4% Annual Chance (25-year)
- 2% Annual Chance (50-year)
- 1% Annual Chance (100-year)
- 0.5% Annual Chance (200-year)
- 0.2% Annual Chance (500-year)
MAP OPTIONS
- About Mapping Project

LEGEND

MAP DESCRIPTION

IOWA FLOOD RISK MANAGEMENT MAP

Important Note: The Iowa Flood Risk Management Maps provided on this site are provisional and are not regulatory flood maps. To view current regulatory maps for your jurisdiction, visit the FEMA Map Service Center.

PARTNERS

SELECTED COUNTY

Zoom in until flood maps
are visible on the map.

To provide feedback,
contact your local
floodplain manager.

ABOUT PROJECT

The Iowa Statewide Floodplain Mapping Project is a collaboration between the Iowa Department of Natural Resources and the Iowa Flood Center at the University of Iowa. The partnership will lead to the creation of Iowa Draft Flood Hazard Products for the 85 counties that were declared Presidential Disaster Areas following the 2008 floods.

The Flood Hazard Products will result in maps that designate flood boundaries for the 1-percent annual chance (100-year) and 0.2-percent annual chance (500-year) flood. The maps shown on this site are provisional and are not regulatory flood maps.

To learn more, visit the project website