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View
interactive floodplain maps.
Understand
the mapping process.
Learn
about regulating floodplains.
Find
floodplain and dam customer assistance.
Customer Service

Find where to go with your dam or floodplain question!

Contact information
For floodplain policy, zoning contact:
DNR Floodplains

Flood inundation

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-time and forecasted river levels at stream gages. These maps will improve planning, property protection measures and evacuation options prior to floods, as well as assist in identifying cost-effective mitigation measures, thus lowering future costs in response, repair and recovery.

Upper Fox River gages
Rock River gages
Cedarburg gages

The Federal Emergency Management Agency funded the Wisconsin DNR, in partnership with the National Weather Service and Wisconsin Emergency Management, to produce the maps. Additional flood tools are under development for the Wisconsin River at Portage.

Upper Fox River interactive maps

  1. Waukesha Gage
  2. Burlington Gage
  3. New Munster Gage

Rock River interactive maps

  1. Watertown Gage
  2. Jefferson Gage
  3. Fort Atkinson Gage
  4. Lake Koshkonong Gage
  5. Afton Gage

Cedar Creek (Ozaukee County)

  1. Cedarburg

Milwaukee River (Ozaukee County)

  1. Near Cedarburg
Last revised: Wednesday November 20 2019