Road Construction Causes Closures on I-41

APPLETON, WI- (WISS) – The snow and cold weather notwithstanding, road construction season is officially underway in Northeast Wisconsin. This will begin with closures, traffic impacts, and more on Interstate 41 between Appleton and De Pere.

Starting Monday, February 3, 2025, the WIS 15, County OO, Northland Avenue bridge over the interstate will be closed and will remain closed until fall. Additionally on and off ramps in the area will be closed until fall. 

The project is part of expanding 23 miles of the I-41 mainline to six travel lanes. Four traffic lanes will remain open on the mainline during peak hours. The closings will significantly impact traffic to and from Timber Rattlers Stadium. 

Closed bridges and ramps

• WIS 15/County OO/Northland Avenue bridge over Interstate 41 will be CLOSED on Monday, February 3 to fall 2025.
  • EB WIS 15/County OO/Northland Avenue detour: County CB to WIS 96/Wisconsin Avenue to Lynndale Drive.
  • WB WIS 15/County OO/Northland Avenue detour: Lynndale Drive to WIS 96/Wisconsin Avenue to County CB.
• Southbound I-41 on-ramp from WIS 15 will be CLOSED on Monday, February 3 to fall 2025.
• Southbound I-41 off-ramp at WIS 15 will be PARTIALLY CLOSED (allowing right turns only) beginning on Monday, February 3.
  • SB I-41 to County OO/Northland Avenue detour: SB I-41 to WIS 96/Wisconsin Avenue off-ramp, follow WIS 96 east to Lynndale Drive, turn north onto Lynndale Drive back to County OO/Northland Avenue.
• NB I-41 under WIS 15/County OO/Northland Avenue will be CLOSED overnight Tuesday, February 4 through Thursday, February 6 from 9 p.m. to 4:30 a.m. and Friday, February 7 from 10 p.m. to 6 a.m.
  • NB I-41 detour: Traffic will bypass the closure using the on and off-ramps at WIS 15/County OO/Northland Avenue.
• SB I-41 between Richmond Street (exit 142) and Wisconsin Avenue (exit 138) will be CLOSED overnight Tuesday, February 4 through Thursday, February 6 from 10 p.m. to 4:30 a.m. and Friday, February 7 from 10 p.m. to 6 a.m.
  • SB I-41 detour: Take WIS 47/Richmond Street south to WIS 96/Wisconsin Avenue. Turn right and travel west to SB I-41
• The following ramps are also scheduled to close during the overnight Interstate 41 closure:
  • SB I-41 off-ramp to WIS 15 will be CLOSED
  • SB I-41 on-ramp from Richmond Street will be CLOSED

Diverging Diamond

The new WIS15/County OO and Northland Avenue interchange will be a diverging diamond interchange. Within the interchange, traffic on the major roadway briefly drives on the left side of the road to allow left-turn movements without crossing oncoming traffic or stopping. The DOT says a diverging diamond interchange has fewer conflict points, reduces the risk of crashes, and has greater vehicle capacity.

The first diverging diamond interchange in Northeast Wisconsin opened in 2018 with the WIS 441/Oneida Street interchange in Winnebago and Calumet counties.

For current traffic impacts of additional northeast region projects, visit 511wi.gov.