I-39/90 Expansion Project

Illinois state line to Madison, Dane and Rock Counties

Reconstruction and expansion to begin on I-39/90 northbound, near Edgerton

READ the weekly construction update!

Posted: March 21, 2017

Starting Monday (March 27), crews will begin work to reconstruct and expand Interstate 39/90 northbound, between the Dane/Rock County line and East Church Road, near the US 51 interchange (Exit 156), including the northbound side of the interchange, east of Stoughton.

What you need to know:

  • Electronic weekly construction updates for this project will start next Friday (March 31), and continue through the 2017 construction season.
  • Periodic nighttime single lane closures are anticipated during the first month of construction, and will occur between 8 p.m. and 5 a.m. Monday through Friday.
    • During these operations, traffic shifts are anticipated within these project limits to accommodate future traffic staging.
  • In late April, all Interstate traffic will shift onto the southbound side via crossovers, while the adjacent eight mile Interstate section is reconstructed and expanded.
    • Two lanes of traffic will remain open in each direction, with northbound and southbound traffic separated by a median barrier wall.
    • Please stay in your lane and follow the posted speed limits to safely navigate these areas.
  • During construction, the WIS 73/US 51 interchange (Exit 160) ramps and the southbound ramps at the US 51 interchange (Exit 156) will remain open.
  • The northbound on/off ramps at the US 51 interchange will be closed starting in late April.
    • The northbound off ramp is anticipated to re-open by August 1, 2017.
    • The northbound on ramp will remain closed until mid-November 2017.
    • Motorists are required to use alternate routes during these ramp closures.
  • This Interstate expansion is the first section of permanent concrete on I-39/90 northbound from the Illinois state line to Madison
  • All lane restrictions and work operations are weather dependent and subject to change.
  • Remember to be alert for crews and equipment in this area, and drive with caution through all work zones.

This project is scheduled to be completed in mid-November 2017.

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

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