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I-39/90 (Illinois state line - US 12/18) Project
Dane and Rock counties

Location | Overview | Status/phase

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Project location

I-39/90, Illinois state line - US 12/18 (Madison), located in Dane and Rock counties.

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Project overview

Due to the project's magnitude, the project is divided into three segments.

I-39/90 is one of the most important transportation corridors in Wisconsin, and is an integral part of the national Interstate system.

Built in the early 1960s, all of the eleven interchanges along the 45-mile corridor have outdated design features that contribute to safety concerns.

By the year 2030, with no corrective action, all sections of I-39/90 are expected to operate at unacceptable levels of service, meaning unstable traffic flow and stop-and-go conditions.

Status/phase

Design work with no construction activity at this time. Public meetings to be conducted throughout the project area.

Questions about the content of this page:
I-39/90 Project Team, I39-90Project@dot.wi.gov
Last modified: January 29, 2013