I-41 Project

What’s happening NOW on I-41?

On Tuesday, May 6, 2025, the County J bridge over I-41 closed for construction. The on- and off-ramps at County J are scheduled to close in late June, with the interchange anticipated to reopen to traffic by late summer.

This project will include reconstructing the on- and off-ramps, replacing pavement, adding new bicycle and pedestrian accommodations and improving the roundabouts to better accommodate oversize and overweight vehicles.

The project team thanks you for your patience and cooperation throughout this project!

View 2024 Construction Story Map

Coming Soon!

COUNTY J INTERCHANGE CLOSURES
County J bridge Over I-41: CLOSED May 6 to late summer 2025.
County J on- and off-ramps: CLOSED late June to late Summer 2025

The County J bridge over I-41 closed May 6, 2025. For more information on traffic impacts and detours visit the I-41 Construction page.

The I-41 Project team hosts public involvement meetings to share updates and interact with the public, businesses, and local and elected officials.

Project Traffic Impacts

(Updated August 26)

Week of August 26

Drivers can expect overnight reduced lanes on Northbound (NB) and Southbound (SB) I-41 in work zones.
Capitol Drive over I-41 between N. Capitol Court and Northridge Lane is closed until fall 2024.
Rose Hill Road over I-41 between Fairlane Drive and E. Evergreen Drive is closed through mid-September 2024.
County N interchange (exit 146) is closed through late September 2024.
French/Southbridge roads through movement is closed from Creamery Road to Innovation Court through fall 2026.

Updated on May 8
Week of May 5
- Drivers will encounter various overnight reduced lanes on Northbound (NB) and Southbound (SB) I-41 in work zones.
- County J over I-41 is scheduled to CLOSE, Tuesday, May 5 through late summer.  
Friday, May 9 through Sunday, May 11
- SB I-41 off-ramp to WIS 15 will be CLOSED overnight, Friday from 6:30 p.m. to noon on Saturday
- NB I-41 between Wisconsin Avenue (exit 138) and Richmond Street (exit 142) is scheduled to be CLOSED overnight, Friday from 10 p.m. to 6 a.m.
  - DETOUR: Take WIS 96/Wisconsin Avenue east to WIS 47/Richmond Street. Turn left and travel north to NB I-41.
  - The following ramps are also scheduled to close during the nightly I-41 closures:
    NB I-41 on-ramp from Wisconsin Avenue CLOSED from 10 p.m. to 6 a.m.  
- SB and NB I-41 at Ballard Road (exit 144) will be CLOSED overnight, Friday from 10 p.m. to 6 a.m.
  - DETOUR: Traffic will be directed to take Ballard Road exit ramps, travel across Ballard Road, and re-enter I-41.  
- NB I-41 at County J (exit 150) will be CLOSED overnight, Friday, May 9 from 9 p.m. to 6 a.m.
  - DETOUR: Traffic will be directed to take County J exit ramps, travel across County J, and re-enter I-41.  
- SB I-41 at County J (exit 150) will be CLOSED nightly, Friday, May 9 and Saturday May 10 from 9 p.m. to 6 a.m.
  - DETOUR: Traffic will be directed to take County J exit ramps, travel across County J, and re-enter I-41.  
Long-term Closures
- WIS 15/County OO/Northland Avenue over I-41 is closed through fall 2025.
- NB and SB I-41 on-ramps from WIS 15/County OO/Northland Avenue are closed through fall 2025.
- SB I-41 off-ramp at WIS 15 will be PARTIALLY CLOSED (allowing right turns only).
- Ballard Road over I-41 is closed through late fall 2025.
- SB I-41 off-ramp to Ballard Road and NB County E/Ballard Road between I-41 and Evergreen Drive is closed through late summer 2025.
- Vandenbroek Road over I-41 is closed through late summer 2025. 
Updated on May 8
Week of May 5
- Drivers will encounter various overnight reduced lanes on Northbound (NB) and Southbound (SB) I-41 in work zones.
- County J over I-41 is scheduled to CLOSE, Tuesday, May 5 through late summer.  
Friday, May 9 through Sunday, May 11
SB I-41 off-ramp to WIS 15 will be CLOSED overnight, Friday from 6:30 p.m. to noon on Saturday
NB I-41 between Wisconsin Avenue (exit 138) and Richmond Street (exit 142) is scheduled to be CLOSED overnight, Friday from 10 p.m. to 6 a.m.
- DETOUR: Take WIS 96/Wisconsin Avenue east to WIS 47/Richmond Street. Turn left and travel north to NB I-41.
- The following ramps are also scheduled to close during the nightly I-41 closures:
  - NB I-41 on-ramp from Wisconsin Avenue CLOSED from 10 p.m. to 6 a.m.  
SB and NB I-41 at Ballard Road (exit 144) will be CLOSED overnight, Friday from 10 p.m. to 6 a.m.
- DETOUR: Traffic will be directed to take Ballard Road exit ramps, travel across Ballard Road, and re-enter I-41.  
NB I-41 at County J (exit 150) will be CLOSED overnight, Friday, May 9 from 9 p.m. to 6 a.m.
- DETOUR: Traffic will be directed to take County J exit ramps, travel across County J, and re-enter I-41.  
SB I-41 at County J (exit 150) will be CLOSED nightly, Friday, May 9 and Saturday May 10 from 9 p.m. to 6 a.m.
- DETOUR: Traffic will be directed to take County J exit ramps, travel across County J, and re-enter I-41.  
Long-term Closures
- WIS 15/County OO/Northland Avenue over I-41 is closed through fall 2025.
- NB and SB I-41 on-ramps from WIS 15/County OO/Northland Avenue are closed through fall 2025.
- SB I-41 off-ramp at WIS 15 will be PARTIALLY CLOSED (allowing right turns only).
- Ballard Road over I-41 is closed through late fall 2025.
- SB I-41 off-ramp to Ballard Road and NB County E/Ballard Road between I-41 and Evergreen Drive is closed through late summer 2025.
- Vandenbroek Road over I-41 is closed through late summer 2025.

For current traffic impacts of additional northeast region projects, visit 511wi.gov or refer to the map below.

Tracking progress

The I-41 Project Journey

Follow along as the project travels from design through completion.

Design/Traffic Management

Real Estate

Utilities

Construction

2022

2023

2024

2025

2026

2027

2028

2029

2030

Design/Traffic Management

Tasks in the design phase include finalizing plans and specifications; appraising and acquiring real estate; relocating utilities; finalizing engineering cost estimates; planning and coordinating traffic management and incident response with local municipalities, law enforcement, and emergency responders; and engaging and informing the public about work in the corridor.

Real Estate

Strengthening our highway system requires that WisDOT carefully manage and sometimes acquire the real estate – or right of way – that surrounds it. This property can include land, homes and businesses. Tasks related to real estate work can include property appraisals, negotiations and relocations, and topographic surveys or layouts of proposed impacts to right of way.

Utilities

Almost every highway construction project must address utilities, which are often located within or adjacent to the highway right of way. Tasks related to utilities work can include the relocation, replacement or adjustment of utility facilities that use the path of the highway.

Construction

In addition to the obvious – constructing the project – other tasks during this phase include advertising and evaluating bids from contractors; awarding various work contracts; and continuing coordination and communication with local officials, residents, businesses, utility owners and other state agencies.

Connecting
Northeast Wisconsin

What’s happening NOW on I-41?