Wisconsin Department of Transportation

Alert: The following services will be unavailable on Saturday, January 5, 2013 from 12 a.m. (midnight) to 6 a.m. CST due to system maintenance.

I-43 South - Fast facts
Elkhorn-Mukwonago, Walworth and Waukesha counties

Wisconsin 511 travel information
View SE, I-43 south, US 12 (Elkhorn) to WIS 83 (Mukwonago), Walworth and Waukesha counties. in a larger map.
Map key - Thick orange line is the project overview/location. Blue tear drop with dot in center is the project limit.

Bridge work continues over the Canadian National Railroad near WIS 83 and SB I-43.

  • WIS 83 is open to traffic.
  • SB I-43 on-ramp from WIS 83 is closed. This ramp has been closed since May and is scheduled to re-open in early Nov.
    • Detour route for traffic on WIS 83 wanting to use I-43 SB - WIS 83 to County L to WIS 20 to I-43.
  • Detour map


I-43 south, US 12 (Elkhorn) to WIS 83 (Mukwonago), Walworth and Waukesha counties.


  • Repave existing lanes of I-43 southbound
  • Repairs to several bridges on the corridor
  • Re-construct the south I-43 bridge over the Canadian National railroad, just south of WIS 83

Promote your business during construction

Come In We're Open sign

Is your business located within mile of the WisDOT construction zone for this project? If so, help your business not only survive, but thrive, during the construction project. Promote your business by uploading your business information to our business listing website.


The current condition of the roadway and bridge is highly deteriorated. The rehabilitation of the roadway will create an improved, long lasting driving surface.


April thru November 2014

Traffic impacts/detours

  • The work on southbound I-43 will be constructed under traffic, but will be reduced to a single travel lane along the entire length of the project.
  • Northbound I-43 will also be reduced to one lane of traffic near the replacement bridge over the Canadian National Railroad.
  • Southbound traffic will be crossed over onto the northbound side of I-43.


Pre-construction. Construction is slated to begin in late April

Contact information

Tony Minto, P.E., WisDOT Project Manager
(414) 254-0816

Charles Krummel, WisDOT Project Leader
(414) 750-0565

Brian DeNeve, WisDOT Southeast Region Communications Specialist
(262) 548-8759

Wisconsin Department of Transportation (WisDOT)
Southeast Region
141 NW Barstow St.
P.O. Box 798
Waukesha, WI 53187-0798
Phone: (262) 548-5902
Fax: (262) 548-5662
TDD: 711

SSI - Project contacts Questions about the content of this page:
WisDOT Southeast Region Office, ser.dtsd@dot.wi.gov
Last modified: September 17, 2014

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