Notice – 2025 construction resumed March 10, 2025. There will be numerous lane closures, mostly at night, on Interstate 41 in both counties.

Upcoming traffic impacts for March 24 through April 5. 

• Fond du Lac County – Southbound and northbound I-41 will have nighttime single lane closures between County N and County D (Military Road), and between Lincoln Road and the county line, nightly, Monday through Friday, 6 p.m. to 6 a.m. the following day and Friday night to Saturday morning from 7 p.m. to 8 a.m.
  • Please pay attention to signage.
• Winnebago County: Southbound and northbound I-41 will have nighttime single lane closures between WIS 26 and County N, nightly, Monday through Friday, 6 p.m. to 6 a.m. the following day, and Friday night to Saturday morning from 7 p.m. to 8 a.m.

Project Location

Improvements will take place on 14.2 miles of I-41 between County D in Fond du Lac County and WIS 26 in Winnebago County.​

• View project location in pdf

Project need

The existing pavement and cable guard system (in the median) are both beginning to deteriorate and reach the end of their service life by the time of construction. The guardrail (bridges and ramps) will also be replaced to meet current safety standards. Drainage measures are needed to prevent water overtopping I-41 north of County Z to Black Wolf Avenue in the town of Nekimi, southern Winnebago County. A box culvert replacement will improve drainage.

Construction Scope 

• Mill and overlay two (2) inches of asphalt in both lanes of I-41 in the project limits
• Replace cable barrier and guardrail along I-41 mainline and ramps
  • Cable barrier protects motorists who cross into the median.
  • Guardrail protects vehicles that run off the roadway at ramps, bridges and other locations with steep embankments.
• Miscellaneous structure maintenance work
• Miscellaneous culvert extension and slope flattening work
• Replace existing box culvert to address flooding issue north of County Z
  • Click here to view locations of culvert work (pdf)

    

Construction Schedule

• Construction resumes March 10, 2025
• Construction is expected to conclude in October of 2025.

2025 specific construction

Construction this year will include shoulder widening at the north end of the project in preparation for the box culvert replacement.

• There are nearly twenty other culvert pipes within the project limits that will be extended to allow slope flattening.
• Inlets will be adjusted to allow for slope flattening in the median.
• There will be spot repairs of the underlying concrete.
• Crews will replace the cable guard in the median as well as all beamguard along I-41 mainline and on the ramps.
• Miscellaneous structure maintenance will also be completed on bridges within the project limits.

Box culvert extensions and culvert pipe extensions took place in 2024 between Military Road and WIS 26.

Traffic impacts anticipated in 2025

Interstate 41: I-41 will remain OPEN to traffic with lane and shoulder closures. During construction, drivers can expect the following restrictions:

• Mainline paving, cable barrier, guardrail, and I-41 structure maintenance will take place at night or during off-peak hours using lane closures.
  • At least one lane of traffic will be maintained in each direction
  • Motorists may encounter slowed traffic. Please pay attention
• Box culvert construction north of County Z
• Traffic patter change to use temporary crossovers.
• Maintain 2 lanes in each direction during peak hours

Side roads: Overpass and structure work affecting off-interstate traffic for the following local, county and state roadways.

• Traffic impacts for County D, WIS 23, County OO, WIS 26
  • Work will be conducted using lane closures and/or flagging operations
• Traffic impacts for County OOO, County OO (Scott Street), County Z, Lincoln Road
  • Full closures are anticipated – Check back for locations and dates.

Temporary business signing

If business access is impacted by a closure or detour, temporary business signing may be placed by filling out a WisDOT business signing permit. All temporary business signing needs approval via the permit before placement to ensure it is in a safe location and does not pose a visual distraction or traffic hazard. The temporary business signing permit is free. Costs associated with creating the temporary sign are the responsibility of the business.

• Click the below link for instructions and a link to a fillable-form WORD application for the permit.
  • Temporary Business Sign Permit Application with instructions
• Please email or mail the free permit to any of the contacts below.

For more information regarding temporary signing, plus tips and tools for businesses impacted by highway construction, please visit WisDOT’s In This Together business resource website.

Project contacts

A construction project leader will be onsite during construction. For all construction-related question, please contact the onsite project leader.

Onsite Project Construction Leader

Brooks Fechhelm, P.E., Construction Leader

Email: bfechhelm@correinc.com

Phone: 920-492-0597

Onside project field office

485 South Military Ave (1st Floor)
Fond du Lac WI, 54935

WisDOT Project Manager

Ryan Erdmann, P.E., Fond du Lac Project Manager
WisDOT Northeast Region
944 Vanderperren Way
Green Bay, WI 54304-5344
Phone: (920) 370-2642
ryand.erdmann@dot.wi.gov