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History
Learn more about the history of flooding and floodplain management in Wisconsin
Mapping
Discover how floodplains are mapped in Wisconsin
Ordinances
Find out what regulations apply in floodplains and how to adopt an ordinance
Insurance
Learn more about the National Flood Insurance Program
Error processing SSI file
Error processing SSI file

Risk MAP

Risk MAP (Mapping, Assessment and Planning) is the next phase in floodplain mapping now that the Map Modernization phase is complete.

  • New multi-year FEMA program using a watershed approach (vs. the county-wide approach used heretofore).
  • Studies will identify flood risk and provide products to communities to help reduce that risk.
  • Current funding provided for Upper Fox, Lower Wisconsin, Upper and Lower Rock River watershed studies and select streams in Chippewa, Eau Claire, and Rusk Counties.

To view any of the projects preliminary maps, flood insurance study or data please go to FEMA's Preliminary Data Search Tool.

To download any of the non-regulatory products (Flood Risk Map, Flood Risk Report, or Flood Risk Data) please go to FEMA's Map Service Center. Watersheds that have had products produced are the Lower Wisconsin (HUC8 07070005), Upper Rock (07090001), and Lower Rock (07090002).

Non-regulatory Flood Risk Products help communities gain a better understanding of flood risk and its potential impacts on communities and individuals. These products will also enable communities to take proper mitigation actions to reduce this risk.

View a table showing the Wisconsin county project status [PDF]

Projects

Milwaukee River watershed

In February 2014, four Action Discovery meetings were held with communities in the Milwaukee Watershed to get a better idea of their mitigation and floodplain planning needs. As a result, a Final Discovery Report [PDF] was created to further reflect any additional comments by the communities and submitted to FEMA with suggested streams to be studied or included as leverage for data development. FEMA has approved some funding for data development as part of the Fiscal Year 2014 Budget. The details of this data development are still being worked out.

On May 16, 2013, Initial Discovery meetings were held in the Cities of Glendale and West Bend for the Milwaukee River watershed. The Milwaukee River watershed encompasses Dodge, Fond du Lac, Sheboygan, Milwaukee, Ozaukee, Washington and Waukesha counties and 39 incorporated communities. Local officials, engineers, planners and emergency managers participated in discussions about flood risk and hazard mitigation in their communities. The attendants also provided input about any areas of concern on streams they would like potentially restudied.

Additionally, a comment period was open until Monday, June 3, 2013 at the end of which all comments were compiled and re-evaluated by the DNR and captured in the Initial Discovery Report [PDF].

Discovery materials

Reference materials

View the following presentations from the meetings for more about the upcoming project and potential reasons for restudy.

Maps

For Contractors

For engineering questions, please contact Chris Olds

Lower Wisconsin River watershed

Resilience meetings

Two Resilience meetings were held for the communities in the Lower Wisconsin River Watershed on March 6, 2014. The meeting was particularly important for each community’s planning department, emergency management department, director of public works, building inspector/code enforcement officer, floodplain administrator, and communications specialist.

The objective for the meetings was to provide you with information that will help you to utilize this updated flood risk information and build local capacity for implementing priority mitigation activities within the affected study area. This new information is in the form of what we call Non-Regulatory Products such as Changes Since Last FIRM (CSLF), Depth Grids for five return periods and two different percent chances, and refined HAZUS analysis. There were CDs ready to pick up with all of these Non-Regulatory Products.

Meeting agenda items
  • Understanding flood risk, including an explanation of the flood risk products produced by FEMA
  • Strategies to reduce flood risk, including mitigation assessment and planning
  • Resources to facilitate mitigation
  • Communication roles and responsibilities

Please send any questions or requests for additional information to Chris Olds.

Resilience meeting reference materials
Discovery meetings

FEMA funds will be used to study parts of the Lower Wisconsin Watershed (affected counties are Columbia, Crawford, Dane, Grant, Iowa, Richland and Sauk) and local officials were asked where to apply those funds.

Discovery meetings were held on Tuesday November 16, 2011 in Boscobel and Sauk City. Elected officials, floodplain managers, planners, engineers, building department staff and GIS staff were encouraged to submit comments if they know of an area where a new flood hazard study is needed or the existing flood study is no longer valid. Comments were accepted through December 15, 2011.

In addition to the watershed studies in the Lower Wisconsin, we will also create county-wide digital maps for Iowa and Richland counties. We will use the new LiDAR elevation data product for these projects.

The DNR has reviewed the submitted comments and has prepared a map, two shapefiles and a summary document to show the prioritized linework. In all, there are 616 miles of approximate study (for bid), 7 miles of approximate study (not for bid), 7 miles of leverage (approximate study), 10 miles of leverage (new detailed study), 116 miles of new detailed study and 93 miles of re-delineated linework proposed.

Comments submitted

DNR prioritizing

For contractors

Please contact Chris Olds at (608)266-5606 with questions or comments.

Upper (Illinois) Fox River watershed

In February 2014, four Action Discovery meetings were held with communities in the Upper Fox Watershed to get a better idea of their mitigation and floodplain planning needs. As a result, a Final Discovery Report [PDF] was created to further reflect any additional comments by the communities and submitted to FEMA with the impetus of receiving funding for Preliminary FIRMs in the next FY15 budget cycle. In FY12, FEMA provided funding for Hydrologic & Hydraulic modelling, resulting in the completion of detailed survey work for over 152 stream miles. The decision to fund DFIRM production will be decided in subsequent funding cycles.

On November 13, 2012, Initial Discovery meetings were held in the City of Waukesha and Village of Burlington for the Upper (Illinois) Fox River Watershed. The Upper Fox encompasses the counties of Kenosha, Racine, Walworth and Waukesha. Local officials, engineers, planners and emergency managers from around the watershed participated in the discussions regarding flood risk in their communities. The initial Discovery comment period was open until January 11, 2013 at which time all comments were re-evaluated by the DNR and presented in the Initial Discovery Report [pdf]

Discovery materials

Scope of work

Shapefiles for the final stream centerlines and survey locations as well as an overview map for the proposed scope of work (new detailed studies) can be downloaded. Additional information for contractors is also available.

Resiliency Meeting Report

The Resiliency Meeting for the Upper (Illinois) Fox River was held on May 18th, 2016. The Upper (Illinios)Fox Resiliency Report [PDF] has a summary of the meeting information.

Flood Risk Review Meeting Summary

The Flood Risk Meeting for the Upper (Illinois) Fox River was held on May 18th, 2016. The Upper (Illinios)Fox Flood Risk Review Summary [PDF] has a short summary of the meeting information.

For engineering questions, please contact Chris Olds at (608)266-5606. All other questions or comments can be directed to Fritz Statz

Upper and Lower Rock River watersheds

These projects cover eight counties in South Central Wisconsin. The counties are each in varying stages of the process from appeals to being effective. Rock and Washington are awaiting appeal resolution. Jefferson is in the ordinance adoption phase and will become effective February 4, 2015. Columbia, Dane, Dodge, Walworth and Waukesha are all effective.

To complete a search to view the effective maps for any county or community please go to FEMA's Current FEMA Issued Flood Maps.

Presentations

Last Revised: Thursday October 06 2016