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Environmental Study

WisDOT completed an environmental assessment in June 2021 for the I-41 Project that found – in concurrence with public comments received – that reconstructing the corridor would not result in significant impacts on the quality of the environment.

WisDOT partners with state and federal agencies and non-government organizations to accomplish the transportation mission and meet environmental responsibilities.

Transportation projects are subject to a variety of regulations including but not limited to the National Environmental Policy Act and the Wisconsin Environmental Policy Act.

The I-41 Project Environmental Assessment documented the following elements related to the project:

  • The purpose and need for the proposed roadway improvements
  • The alternatives WisDOT considered
  • The environmental impacts of the alternatives retained for detailed study
  • Public involvement and agency coordination efforts

WisDOT approved the environmental assessment, giving agencies and the public the opportunity to review the document and provide comments, including at the public hearings held in July 2021.

The Federal Highway Administration then issued a Finding of No Significant Impact or FONSI documenting the decision, concluding the environmental study process, and allowing the project to proceed to the design phase.

Environmental Study Documents

How-To Videos:

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How to Subscribe for Project Updates

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How to Comment on the Project

  • Click this link: Comment
  • Provide your preferred communication method to receive our response, which we will send in a timely manner, if needed

How to Attend Online Meetings

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  • Watch the presentation
  • Comment and ask questions using the Virtual Podium

Current Job Postings

Geotechnical engineers extract soil samples that are analyzed and then factored when WisDOT designs the roadways, bridges and other structures.

Real Estate

The Wisconsin Department of Transportation, Bureau of Technical Services-Real Estate (WisDOT/BTS-RE) works to acquire the property needed for highway construction and highway related facilities. If you have specific questions about your property, please contact the I-41 Project real estate team at

For additional information regarding your rights as a landowner, see the brochure(s) linked.

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