Interstate 41

Interstate 41
I-41 highlighted in red
Route information
Length:	176.33 mi (283.78 km)
Existed:	April 7, 2015 (2015-04-07) – present
History:	Approved for designation in 2012
Major junctions
South end:	I-94 / 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 near Menasha, WI US 141 in Green Bay, WI
North end:	I-43 / US 41 / US 141 in Howard, WI
Location
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 Illinois State Highway System Interstate U.S. State Tollways Wisconsin State Trunk Highway System Interstate U.S. State Scenic Rustic ← IL 40 IL US 41 → ← WIS 40 WI US 41 →

Interstate 41 (I-41) is a 176.33-mile-long (283.78 km) Interstate Highway connecting the interchange of I-94 and U.S. Route 41 (US 41), located 0.9 miles (1.4 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, 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.

I-41 begins at the I-94/US 41 interchange in Russell, Illinois, located 0.9 miles (1.4 km) south of the Wisconsin–Illinois border at the end of the Tri-State Tollway. The highway continues north concurrently with I-94 to the Mitchell Interchange in Milwaukee, turns west to run concurrently with I-894 and I-43 to the Hale Interchange (forming a brief wrong-way concurrency with I-43), and turns north to run concurrently with I-894 and US 45 to the Zoo Interchange, with the US 45 concurrency continuing until the I-41/US 41/US 45 split near Richfield. The Interstate roughly parallels I-43, which runs north–south along Lake Michigan from Milwaukee to Green Bay. I-41 runs through the Fox Valley (including the cities of Fond du Lac, Oshkosh and Appleton, along with the Fox Cities) and Green Bay, where it ends at the I-43 interchange. The Interstate is approximately 176 miles (283 km) long and located almost entirely within the state of Wisconsin, and is completely concurrent with a slightly adjusted alignment of US 41 to its termination in Green Bay.