I-39/90 Expansion Project

Illinois state line to Madison, Dane and Rock counties

Exhibits and presentations available for I-39/90 work between Beloit and Janesville

Updated: August 23, 2017

The Wisconsin Department of Transportation (WisDOT) is preparing to reconstruct and expand approximately 12 miles of Interstate 39/90 from Hart Road near Beloit north to the I-39/90 and US 14 interchange (Exit 171B) in Janesville. Work is tentatively scheduled to start in September and will be completed in spring of 2020 (weather-permitting).

Throughout construction, I-39/90 will remain open with two lanes of traffic in each direction. Work will begin on the northbound Interstate lanes and northbound traffic will be shifted over to temporary lanes onto the southbound side of I-39/90 during construction. When the I-39/90 northbound expansion is complete within these limits, both northbound and southbound motorists will be shifted to the new northbound pavement as crews reconstruct and expand the existing I-39/90 southbound lanes.

During construction, local roadways under I-39/90 in Janesville may be temporarily closed for bridge work. Advanced notice of these temporary closures will be announced to the media and on the project’s website.

A business and public meeting was held on August 22, 2017 at the Holiday Inn Express in Janesville. View the handouts and presentations.

The Wisconsin Department of Transportation (WisDOT) recognizes that businesses located in work zones are faced with unique challenges. It’s critical that customers, employees and delivery vehicles have access to businesses, regardless of any roadwork inconvenience. View the I-39/90 Project website for information on WisDOT’s In This Together program.

Also, reconstruction work on the WIS 26 (Milton Avenue) and US 14 (Humes Road) interchanges is currently scheduled to occur from spring 2019 to fall 2021. Learn more about that portion of the project.

Contact I-39/90 Project staff with any questions regarding this project.

Stay involved and informed with the project website, register for project email updates, and follow us on Facebook. Facebook