Interstate 41

Interstate 41
Interstate 41
	I-41 highlighted in red
Route information
	Maintained by WisDOT and IDOT
Length	175.00 mi (281.64 km)
Existed	April 7, 2015–present
History	Approved for designation in 2012
NHS	Entire route
Major junctions
South end	; I-94 Toll / US 41 in Russell, IL
	I-43 / I-894 in Milwaukee, WI; US 45 in Milwaukee, WI; I-94 in Milwaukee, WI; US 151 in Fond du Lac, WI; US 45 in Oshkosh, WI; US 10 / WIS 441 in Fox Crossing, WI; US 141 in Green Bay, WI;
North end	I-43 / US 41 / US 141 in Howard, WI
Location
Country	United States
States	Illinois, Wisconsin
Counties	IL: Lake; WI: Kenosha, Racine, Milwaukee, Waukesha, Washington, Dodge, Fond du Lac, Winnebago, Outagamie, Brown
Highway system
	Interstate Highway System; Main; Auxiliary; Suffixed; Business; Future;
	Illinois State Highway System; Interstate; US; State; Tollways; Scenic;
	Wisconsin State Trunk Highway System; Interstate; US; State; Scenic; Rustic;

Interstate 41 (I-41) is a 175.00-mile-long (281.64 km) north–south Interstate Highway connecting the interchange of I-94 and U.S. Route 41 (US 41), located 2.50 miles (4.02 km) south of the Wisconsin–Illinois border at the end of the Tri-State Tollway in metropolitan Chicago, to an interchange with I-43 in metropolitan Green Bay, Wisconsin. The designation travels concurrently with US 41 for its entire length, as well as portions of I-894, US 45, I-43, and sections of I-94 in Wisconsin and Illinois. The route was officially added to the Interstate Highway System on April 7, 2015, and connects Milwaukee and Green Bay with the Fox Cities.

^ Starks, Edward (January 27, 2022). "Table 1: Main Routes of the Dwight D. Eisenhower National System of Interstate and Defense Highways". FHWA Route Log and Finder List. Federal Highway Administration. Retrieved December 24, 2023.
^ Cite error: The named reference WisDOT2015-04-19 was invoked but never defined (see the help page).
^ Cite error: The named reference aashto2012-11-16 was invoked but never defined (see the help page).