This WisDOT project will make various improvements to multiple ramps and overpasses along I-43/94, between the Mitchell Interchange and Marquette Interchange in Milwaukee County.

Project Improvements

View project overview document

The project scope includes the following work:

• Bridge girder replacement on Howard Avenue bridge over I-43
• Thin polymer overlays on Lapham Boulevard and Howard Avenue bridges over I-43
• Guardrail replacement on National Avenue northbound off-ramp
• Spot concrete repairs/replacement on the Holt Avenue northbound off-ramp and National Avenue southbound on-ramp
• Asphalt resurfacing on the Howard Avenue northbound on-ramp, Holt Avenue northbound on/off ramps, Lapham Boulevard northbound/southbound on/off ramps, and 6th Street/National Avenue northbound/southbound on/off ramps
• Signal reconstruction at Holt Avenue and I-43 northbound ramps and 6th Street and Mineral Street
• Raised crosswalks at 9th Street and Mineral Street, and 9th Street and Walker Street
• Curb ramp reconstruction at Howard Avenue and I-43 northbound ramps, Holt Avenue and I-43 northbound ramps, Lapham Boulevard and I-43 northbound/southbound ramps, 6th Street and Mineral Street, 9th Street and Mineral Street, and 9th Street and Walker Street
  • Minor impacts to Walker Square Park for curb ramp reconstruction.
    • View Walker Square Park impact document

Traffic Impacts

Northbound I-43 exit ramp to Holt Avenue will close for approx. 30 days in mid-August for pavement replacement

Multiple overnight closures of I-43 and Howard Avenue bridge for critical bridge operations (demolition, girder work, deck pours). These closures are anticipated in August and September.

Overnight ramp closures for paving operations and daily lane closures for intersection work and bridge deck overlays.

Additional ramp closures and lane closures will take place as needed. Closures of consecutive on-ramps or off-ramps will be avoided.

Schedule:

This project is scheduled to begin in mid-July 2025 and be completed by late fall 2025. All work is weather dependent and subject to change.