Flood Hazards and Recovery

Flood warning sign

Introducing: Wisconsin Flood Risk Mapping Application!

Every year, areas of Wisconsin are routinely flooded. Our interactive mapping tool can help local, regional, and state entities prepare for and respond to flooding events. To learn how to use it, you can watch a tutorial and listen to our webinar. You can also see more details about each data layer in the map.


Do NOT swim or bathe in rivers, streams, creeks, or lakes in flooded areas.

Flood waters may contain sewage, fertilizer, gasoline, pesticides, hazardous materials, and large chunk of debris such as fallen tree limbs, boulders, metal objects, sharp objects like fence posts and nails, etc.

Keep yourself and your family healthy by making sure clean and safe drinking water is on hand at all times.

Private well users should take precautions if your well has been flooded. Contact your local health department for more information.

Take proper safety measures when cleaning your home after a flood.

A home that is flooded may be unsafe upon re-entry. Assess for potential hazards before entering. Use caution when cleaning your home with bleach.


Flooding Toolkit

If you live or work in an area likely to flood, take some simple steps to protect yourself and your property. The Wisconsin Flood Toolkit, P-00631 provides general information and guidance on flood events for health professionals and the public.

Recovering Safely from a Flood

Watch this video on How to protect your health and stay safe when recovering from a flood. It covers important topics such as re-entering your home, dealing with mold, food safety, and cleanup.

Flood video screenshot

Wisconsin DNR Resources

Wisconsin Department of Natural Resources (DNR) provides guidance on how to cope with a flooded well. Private well owners whose well has been submerged by flood waters should:


For more information on cleaning your home after a flood, using bleach, and potential hazards related to flooding, refer to our navigation.

Last Revised: June 29, 2020