I-39/90/94 (South County Line to WIS 60) - Columbia County

Project location | Project overview | Schedule | Traffic impacts/detours | Status/phase | Contact information

Project location

I-39/90/94 (South County Line to WIS 60) - Columbia County

Project overview

The purpose of this project is to improve the surface of I-39 to extend the roadway's surface life. The project is needed to address deteriorating pavement.

The proposed roadway improvements include placing a 4 inch asphalt overlay on the existing concrete pavement and replacing existing beam guard at the bridge overpasses.


  • Early spring 2023 - Virtual Public Involvement
  • Fall 2023 - Construction anticipated on northbound lanes
  • 2024 - Construction anticipated on southbound lanes

Traffic impacts/detours

I-39/90/94 will remain open to traffic during construction utilizing lane closures during non-peak hours.



Contact information

Amy Coughlin, P.E.
WisDOT Project Manager
(608) 245-5358

Michael Bie
WisDOT Southwest Region Communications Manager
(608) 246-7928

Wisconsin Department of Transportation (WisDOT)
Southwest Region, Madison Office
2101 Wright Street
Madison, WI 53704
Phone: (608) 246-3800
Email: swr.dtsd@dot.wi.gov