Interstate 41 (I-41) is a north–south

Interstate Highway The Dwight D. Eisenhower National System of Interstate and Defense Highways, commonly known as the Interstate Highway System, is a network of controlled-access highways that forms part of the National Highway System in the United States. Th ...

connecting the interchange of I-94 and U.S. Route 41 (US 41), located south of the

Wisconsin Wisconsin () is a state in the upper Midwestern United States. Wisconsin is the 25th-largest state by total area and the 20th-most populous. It is bordered by Minnesota to the west, Iowa to the southwest, Illinois to the south, Lake M ...

–

Illinois Illinois ( ) is a U.S. state, state in the Midwestern United States, Midwestern United States. Its largest metropolitan areas include the Chicago metropolitan area, and the Metro East section, of Greater St. Louis. Other smaller metropolita ...

border at the end of the Tri-State Tollway in metropolitan Chicago, to an interchange with

I-43 Interstate 43 (I-43) is a Interstate Highway located entirely within the US state of Wisconsin, connecting I-39/ I-90 in Beloit with Milwaukee and I-41, U.S. Highway 41 (US 41) and US 141 in Green Bay. State Trunk Highwa ...

in metropolitan

Green Bay, Wisconsin Green Bay is a city in the U.S. state of Wisconsin. The county seat of Brown County, it is at the head of Green Bay (known locally as "the bay of Green Bay"), a sub-basin of Lake Michigan, at the mouth of the Fox River. It is above sea lev ...

. The designation travels concurrently with US 41,

I-894 Interstate 894 (I-894) is a auxiliary Interstate Highway in Milwaukee County in the US state of Wisconsin. The route serves as a bypass of downtown Milwaukee, connecting with I-94 at the Zoo Interchange west of downtown and the Mitchell ...

, US 45, I-43, and sections of I-94 in Wisconsin and

. The route was officially added to the Interstate Highway System on April 7, 2015, and connects

Milwaukee Milwaukee ( ), officially the City of Milwaukee, is both the most populous and most densely populated city in the U.S. state of Wisconsin and the county seat of Milwaukee County. With a population of 577,222 at the 2020 census, Milwaukee is ...

and Green Bay with the Fox Cities.

Route description

I-41 begins at the I-94/US 41 interchange in Russell, Illinois, located south of the Wisconsin–Illinois border at the end of the

Tri-State Tollway The Tri-State Tollway is a toll highway in the northeastern part of the U.S. state of Illinois. It follows: *Interstate 80 from I-94/I-294/IL 394 in South Holland to I-294 in Hazel Crest; * Interstate 294 from I-80/I-94/IL 394 in South Hol ...

. The highway continues north concurrently with I-94 as part of the North-South Freeway to the

Mitchell Interchange The Mitchell Interchange is a major interchange on the south side of Milwaukee, Wisconsin, for Interstate 41 (I-41), U.S. Highway 41 (US 41), I-43, I-94, and I-894. It is named for its proximity to General Mitchell International Airport. ...

, turns west to run concurrently with I-894 and I-43 as the Airport Freeway to the Hale Interchange (forming a brief

wrong-way concurrency A concurrency in a road network is an instance of one physical roadway bearing two or more different route numbers. When two roadways share the same right-of-way, it is sometimes called a common section or commons. Other terminology for a concurre ...

with I-43), and turns north to run concurrently as the Zoo Freeway with I-894 and US 45 to the

Zoo Interchange The Zoo Interchange is a freeway interchange on the west side of Milwaukee, Wisconsin. It forms the junction of Interstate 94 (I-94, East–West Freeway), I-894, I-41, US Highway 41 (US 41) and US 45 (Zoo Freeway). It is the ...

, 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 Lake Michigan is one of the five Great Lakes of North America. It is the second-largest of the Great Lakes by volume () and the third-largest by surface area (), after Lake Superior and Lake Huron. To the east, its basin is conjoined with that o ...

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). At Appleton, I-41 intersects US 10 and State Trunk Highway 441 (WIS 441), the latter of which is a freeway that runs into the city and back to I-41. Further north, I-41 intersects WIS 172 on the south side of Green Bay, before running along the city's west side to its end at the I-43 interchange. The Interstate is approximately 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.

History

The freeway portion of US 41 and US 45 from Milwaukee through the Fox Valley to Green Bay was proposed and designated as an Interstate Highway as part of the 2005 highway funding bill ( Safe, Accountable, Flexible, Efficient Transportation Equity Act: A Legacy for Users). In the initial language of the bill, the route was named Interstate 41, which correlates with the

U.S. Highway The United States Numbered Highway System (often called U.S. Routes or U.S. Highways) is an integrated network of roads and highways numbered within a nationwide grid in the contiguous United States. As the designation and numbering of these h ...

it parallels and also complies with the Interstate naming guidelines through the

American Association of State Highway and Transportation Officials The American Association of State Highway and Transportation Officials (AASHTO) is a standards setting body which publishes specifications, test quality control, protocols, and guidelines that are used in highway design and construction through ...

(AASHTO). The final bill omitted the I-41 designation. In 2009, Green Bay officials began a campaign to have US 41 designated as a northern extension of I-55 from its current termination in

Chicago (''City in a Garden''); I Will , image_map = , map_caption = Interactive Map of Chicago , coordinates = , coordinates_footnotes = , subdivision_type = Country , subdivision_name ...

, with the alternative being designated as a spur of I-43. At the spring meeting of the Special Committee on U.S. Route Numbers of AASHTO on May 18, 2012, the I-55 designation was discussed by the committee. Coordination would have been required with the

Federal Highway Administration The Federal Highway Administration (FHWA) is a division of the United States Department of Transportation that specializes in highway transportation. The agency's major activities are grouped into two programs, the Federal-aid Highway Program a ...

(FHWA) and the

Illinois Department of Transportation The Illinois Department of Transportation (IDOT) is a state agency in charge of state-maintained public roadways of the U.S. state of Illinois. In addition, IDOT provides funding for rail, public transit and airport projects and administers fuel ...

(IDOT) on the I-55 designation. However, IDOT officials were not interested in signing an extension of I-55 from its Chicago terminus to the state line. Therefore, the Wisconsin Department of Transportation (WisDOT) decided to seek a different designation not requiring the cooperation of their Illinois counterparts. Four designations were proposed by WisDOT and put up for public review: two new primary designations (I-41 and I-47) and two auxiliary designations (I-594 and I-643). At the end of October 2012, WisDOT submitted I-41 to AASHTO for consideration at their fall Special Committee meeting, where it was conditionally approved on November 16, 2012, pending FHWA concurrence. Official approval of I-41 then hinged on weight limit exceptions being approved for the route, which initially passed the

United States House of Representatives The United States House of Representatives, often referred to as the House of Representatives, the U.S. House, or simply the House, is the Lower house, lower chamber of the United States Congress, with the United States Senate, Senate being ...

as H.R. 4745 and awaited a United States Senate vote as S. 2438, but there were later passed in a different bill (H.R. 83) on December 16, 2014. On April 9, 2015, Wisconsin Governor Scott Walker announced that the FHWA had approved I-41 as part of the Interstate Highway System. According to WisDOT, the approval came two days earlier. WisDOT replaced or modified 3,500 signs before and near September 2015 after coordination with IDOT and the FHWA (signs erected in 2014 and into 2015 before approval of the designation had the I-41 shield obscured until approval). Over the next 5–10 years, shoulders are slated to be rebuilt as older parts of the highway are upgraded. The redesignation to Interstate status also makes the route subject to the

Highway Beautification Act In the United States, highway beautification is the subject of the Highway Beautification Act (HBA), passed in the Senate on September 16, 1965 and in the U.S. House of Representatives on October 8, 1965, and signed by the President Lyndon B. Joh ...

, meaning current advertising billboards along the Milwaukee-to-Green Bay portion of the road can no longer be upgraded or enlarged nor can new signs be added.

Exit list

References

External links

Route description

History

Exit list

See also

References

External links