Steven Theisen, WisDOT Project Communications Manager
(608) 884-1230,

As construction work progresses on Interstate 39/90 in Janesville, crews are preparing for another traffic switch on I-39/90 between the US 14/Humes Road interchange (Exit 171B) and WIS 11/Avalon Road interchange (Exit 177) in Rock County. The following ramp closures are planned for Wednesday night (April 10):

  • The WIS 11/Avalon Road ramp to I-39/90 northbound is closed from 8 p.m. to 12 a.m. Wednesday (April 10).
  • The WIS 11/Racine Street ramp to I-39/90 northbound is closed from 12 a.m. to 5 a.m. Thursday (April 11).
  • Motorists are required to use alternate routes during these overnight closures, which are weather dependent and subject to change.

In addition, the US 14/Humes Road ramp to I-39/90 southbound is scheduled to be periodically closed from 11 p.m. Friday (April 12) to 1 a.m. Saturday (April 13). The I-39/90 southbound ramps to and from WIS 11/Racine Street (Exit 175) are also closed from 11 p.m. Friday to 6 a.m. Saturday. Drivers must use alternate routes during this timeframe.

By Saturday morning, all I-39/90 traffic will shift onto the new northbound concrete pavement from WIS 11/Avalon Road interchange to the US 14 interchange. Two lanes will remain open in each direction, separated by a median barrier wall. Crews will then reconstruct and expand the southbound Interstate within these limits, as well as install the noise barriers along I-39/90 southbound between US 14 and WIS 11/ Racine Street in Janesville.

As a reminder, the Interstate work zone speed limit is reduced to 60 mph from Kennedy Road (north of the WIS 26 interchange) in Janesville south to the Illinois state line in Beloit. Motorists are advised to obey the posted speed limit!

I-39/90 remains open to two lanes in each direction during daytime hours and weekends. Nightly single lane closures will occur on the Interstate weeknights from 8 p.m. to 5 a.m. within the construction project limits. All lane restrictions, ramp closures, traffic switch and work operations are weather dependent and subject to change.

Drivers are urged to plan ahead, eliminate distractions, do not tailgate and drive with caution in all work zones.

The public is encouraged to stay informed and register for project email updates on the project website,, and follow the I-39/90 Project Facebook page,

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