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Learn more about the history of flooding and floodplain management in Wisconsin
Discover how floodplains are mapped in Wisconsin
Find out what regulations apply in floodplains and how to adopt an ordinance
Learn more about the National Flood Insurance Program
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Find where to go with your dam or floodplain question!

Contact Information
DNR Floodplains

Mitigation and grants


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 occur. These tools and techniques are known as mitigation.

The goal of floodplain mitigation is to lessen the impact floods have on people, property, and the environment. In practice, mitigation can take many forms. It can involve actions such as:

  • promoting sound land use planning based on known flood hazards;
  • buying flood insurance to protect your belongings;
  • relocating or elevating structures out of the floodplain;
  • developing, adopting, and enforcing effective building codes and standards; and
  • developing and implementing a plan in your business or community to reduce your susceptibility to hazards.

Floodplain mitigation can be either structural or non-structural. Structural measures keep the floods away from people and buildings, non-structural measures keep the people and buildings away from the floods. Non-structural measures such as zoning or retro-fitting [PDF] are less expensive than structural measures such as levees. FEMA [exit DNR] and Wisconsin Emergency Management [exit DNR] are excellent sources for mitigation information.


Funding for mitigation projects is available from the DNR through Municipal Flood Control Grant Program and from Wisconsin Emergency Management [exit DNR] through its Hazard Mitigation Assistance Programs.


More information on floodplain management.

Last Revised: Friday June 26 2015