For more information, contact: Steven Theisen, WisDOT Communications Manager, (608) 884-1230, [email protected]

Crews will resume work next week to reconfigure the I-39/90 and US 12/18 (Beltline) interchange in Madison. This year, crews will finish the new I-39/90 configuration through the core of the Beltline interchange. This includes a right exit lane for I-39/90 northbound to US 12/18 westbound – eliminating the current left exit – as well as dual lane exit for I-39/90 southbound to US 12/18 westbound.

During the construction project, I-39/90 will remain open to two lanes each way during daytime hours and weekends. Nightly single lane closures will occur between 8 p.m. and 5 a.m. Monday through Friday and 10 p.m. to 7 a.m. Friday nights. Periodic nighttime ramp closures from 9 p.m. to 5 a.m. Monday through Friday.

The following long-term ramp closures are anticipated at the Beltline interchange:

  • US 12/18 westbound ramp to I-39/90 northbound will be closed for one month from mid-April to mid-May.
  • I-39/90 southbound loop ramp to US 12/18 eastbound will be closed for two months in August and September.
  • US 12/18 westbound loop ramp to the southbound Interstate will be closed for three months starting in August.
  • I-39/90 northbound ramp to US 12/18 eastbound will be closed for one month in August.

Motorists must use alternate routes such as the signed detour using the Beltline and US 51/Stoughton Road interchange.

Single lane closures are also anticipated on US 12/18 westbound and eastbound near the Beltline interchange.

When the Beltline interchange construction is complete in November 2021, I-39/90 will feature three southbound lanes through this interchange with dedicated off-ramp lanes to the Madison Beltline. Three northbound lanes will be constructed before and after the interchange, with accommodations for a potential third lane through the interchange core. View the Beltline interchange configuration at https://projects.511wi.gov/i-39-90/us1218-beltline/.

All lane restrictions, ramp closures and work operations are weather dependent and subject to change. Motorists are reminded to plan ahead; obey the posted speed limit; watch the road ahead and eliminate distractions; and drive with caution in all work zones.

The public is encouraged to stay informed and register for project email updates on the website, www.i39-90.wi.gov, and follow the project Facebook page, facebook.com/WisconsinI3990Project.

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