WIS 441 Tri-County Project

Tri-County Expansion

Project Overview

WIS 441 Tri-County Project

Read Latest News Releases and Closure Reports

Welcome to the WIS 441 Tri-County Project construction website! The WIS 441 Tri-County Project will reconstruct and expand approximately 6 miles of US 10 / WIS 441 from 4 lanes to 6 lanes between Cold Spring Road (County CB) and Oneida Street (US 10) in Winnebago, Outagamie and Calumet counties and reconstruct five interchanges and the Roland Kampo Bridge.

Highlights of the project include:

  • Constructing a 2nd parallel bridge over Little Lake Butte des Morts.
  • Reconstructing the I-41/WIS 441/US 10 system-to-system interchange to provide free flow movements to and from all highways.
  • Re-aligning US 10/WIS 441 to provide a safer facility designed for 70-mph.
  • Reconstructing the Appleton Road (WIS 47), Racine Road (County P), Midway Road (County AP) and Oneida Street (US 10) interchanges to provide a safer facility.
  • Adding auxiliary lanes on I-41 for safer highway merges.

What exactly is going to be built, and where? WIS 441 Project TimelineWIS 441 Project Improvements Timeline

The project is needed to address safety concerns and traffic demands on one of the region’s vital transportation routes. Currently, the crash rates on US 10/WIS 441 exceed statewide averages for similar urban freeways. Traffic volume is expected to rise on US 10/WIS 441 in the years ahead, and additional traffic lanes are needed to safely accommodate this increase. The existing interchanges also need safety and capacity improvements.

Quick Links

Long-term closures currently underway – This highlights the major closures currently taking place on the WIS 441 Project.

WIS 441 weekly closure report and news you need to know – Our weekly closure report shows all the short-term and long-term traffic impacts on the WIS 441 Project. It is publish every Friday with a look ahead to next week’s traffic impact.

US 10 Resurfacing Project (Midway Road to WIS 114) – This project is separate from the WIS 441 Project. It is a resurfacing project to the south of the WIS 441/Oneida St. interchange.

WIS 441/Oneida St. interchange, Midway Road and Oneida St. construction map – This detailed map shows all construction work zones and dates of construction for 2017-2019 in the WIS 441/Oneida Street interchange, Midway Road, and US 10 location.

WIS 441 Meetings – You can find maps, designs, interchange-specific construction schedules, handouts, and more from pubic meetings specific to the construction staging area.

Improved interchange designs – See what the new interchanges will look like when complete.

City of Appleton utility project on US 10 (Oneida Street) – This construction to the north of the WIS 441/Oneida Street interchange is under the authority of the city of Appleton and separate from the WIS 441 Project

Noise barrier brochure – How does the Wisconsin Department of Transportation decide if or where a noise barrier is going?

Twitter: @WIS441I41News or https://twitter.com/WIS441I41News – Get daily traffic updates and the latest breaking news on the WIS 441 Project.

Facebook Page: https://www.facebook.com/WIS441I41News – The WIS 441 Facebook page is great for daily photos, maps and interesting news about the WIS 441 Project.


Sign up for WIS 441 Project updates via email

If you would like to sign up for a weekly update on WIS 441/US 10/I-41 traffic alerts, construction updates, and project information, please send your email address to:

Melissa Kok, WisDOT Assistant Region Communications Manager

For information regarding all northeast Wisconsin construction projects, detours, local transportation news and much, much more: