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What we are doing

In 1997, the department underwent an overall assessment of the effectiveness of the shoreland program in meeting the legislative goals of protecting water quality, fish and wildlife habitat and natural scenic beauty. Rulemaking process As a result…

DNR Floodplain Contacts by County: Water Management Engineer Contact Information

Floodplain Zoning and Management Resources

Model Zoning Ordinance A new standard model floodplain ordinance went into effect on April 8, 2022. This model should be used by any community amending or adopting a floodplain ordinance after that date. For copies of the documents listed below in…

Regulations and ordinances

Regulations Communities are required under s. 87.30, Wis. Stats. to adopt a reasonable and effective floodplain ordinance within one year after hydraulic and engineering data adequate to formulate the ordinance becomes available. Communities are…

Mitigation and Grants

Mitigation While it is not possible to prevent natural hazards, it is possible to reduce their consequences. We have tools and techniques which, when put into effect in a timely fashion, allow us to avoid the worst-case scenario when a hazard does…

Floodplain Mapping

The Federal Emergency Management Agency (FEMA) produces Flood Insurance Rate Maps (FIRMs) that show areas at risk to flooding. The FIRMs are based on engineering studies called Flood Insurance Studies (FIS). The FIRMs can be changed through Letters…

Viewing Floodplain Analysis and Maps

Wisconsin DNR floodplain mapping applicationThe DNR Floodplain Management Program's mapping application allows the public access to the Wisconsin Floodplain Analysis database and FEMA's National Flood Hazard Layer. Floodplain Insurance Studies and…

Letters of Map Change (LOMC)

Letters of Map Amendment (LOMA), Letters of Map Revision (LOMR) and Letters of Map Revision Based on Fill (LOMR-F) are documents issued by FEMA that officially remove a property and/or structure from the floodplain for flood insurance purposes. They…

Flood Inundation Mapping

Do you live near the Rock River, Upper Fox River, Cedar Creek, or Milwaukee River? New interactive maps can help you predict when your property may flood. The maps show where flooding may occur over a range of river levels and are connected to real-…

Do I need flood insurance?

Flood-proof your finances and get peace of mind. Buy flood insurance.Anyone can be financially vulnerable to floods. Homeowners and renters outside of designated floodplains are at risk and most are not properly insured for floods. In fact, people…