Interstate 43 (I-43) is a
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 ...
located entirely within the US state of
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 ...
, connecting
I-39
Interstate 39 (I-39) is a highway in the Midwestern United States. I-39 runs from Normal, Illinois, at I-55 to State Trunk Highway 29 (WIS 29) in the town of Rib Mountain, Wisconsin, which is approximately south of Wausau. I- ...
/
I-90 in
Beloit with
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
I-41
Interstate 41 (I-41) is a north–south Interstate Highway connecting the interchange of I-94 and U.S. Route 41 (US 41), located south of the Wisconsin–Illinois border at the end of the Tri-State Tollway in metropolitan C ...
,
U.S. Highway 41 (US 41) and
US 141 in
Green Bay.
State Trunk Highway 32 (WIS 32)
runs concurrently with I-43 in two sections and
I-94,
I-894,
US 10, US 41,
US 45, and
WIS 57 overlap I-43 once each. There are no auxiliary or business routes connected to I-43, though an alternate route to direct traffic during road closures is signed along local and state highways from Milwaukee County north into Brown County.
I-43 came about as a result of toll road proposals that included a Milwaukee to
Superior corridor that included
Hurley,
Wausau, and Green Bay. Only the Milwaukee-to-Green Bay section was approved. The route was originally planned to follow an alignment about midway between US 41 and US 141 (the latter paralleled Lake Michigan at the time) along WIS 57. Controversy about this location and use of
right-of-way
Right of way is the legal right, established by grant from a landowner or long usage (i.e. by prescription), to pass along a specific route through property belonging to another.
A similar ''right of access'' also exists on land held by a gov ...
led to the establishment of the current alignment, which follows much of what was the 1950s-era realignment of US 141 from Milwaukee to
Sheboygan, and a new alignment from Sheboygan to Green Bay. This section was completed in 1981.
The Beloit-to-Milwaukee segment was developed after two separate proposals for Interstates, one of them between Milwaukee and Beloit and the other between Milwaukee and
Janesville. The Milwaukee–Beloit route was chosen, completed in 1976 as WIS 15 and renumbered as I-43 in 1988. To connect the two segments, I-43 was signed concurrently with the east–west segment of I-894 and the north–south portion of I-94 in the greater Milwaukee metropolitan area from I-894 to the
Marquette Interchange
The Marquette Interchange is a major freeway interchange in downtown Milwaukee, Wisconsin, located near Marquette University where Interstate 43 (I-43, North–South Freeway), I-94 (North–South Freeway and East–West Freeway), and I-794 (Lake ...
, which was completely reconstructed with work being completed in 2008.
Route description
I-43 begins in
Rock County as the eastern leg of a
T interchange
In the field of road transport, an interchange (American English) or a grade-separated junction (British English) is a road junction that uses grade separations to allow for the movement of traffic between two or more roadways or highways, usi ...
with
I-39
Interstate 39 (I-39) is a highway in the Midwestern United States. I-39 runs from Normal, Illinois, at I-55 to State Trunk Highway 29 (WIS 29) in the town of Rib Mountain, Wisconsin, which is approximately south of Wausau. I- ...
/
I-90 just east of
Beloit. The highway becomes
WIS 81 west of the interchange. The Beloit-to-
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 ...
segment of I-43 passes mainly through farmland situated on rolling hills, going around urbanized areas except for in the greater Milwaukee area, where the route passes through suburban residential areas with some embedded industrial establishments.
The Interstate bypasses
Clinton to the north at
WIS 140 and passes into
Walworth County east of WIS 140. , daily traffic counts for Rock County range from 12,400 to 19,200 with the higher counts closest to Beloit. The interchange with I-39/I-90 accommodates 1,000–5,200 vehicles daily, with the most traffic on ramps connecting southbound I-39/I-90 to westbound WIS 81 and westbound I-43 to southbound I-39/I-90.
I-43 passes north of
Darien and crosses
US 14 at that point, then junctions with
WIS 50 south of
Delavan. , about 14,000–19,200 vehicles use this section daily.
In
Elkhorn, I-43 junctions with
WIS 67,
US 12, and
WIS 11. The freeway passes through
East Troy
East Troy is a village in Walworth County, Wisconsin, United States. The population was 4,687 at the 2020 census. The village is located southwest of the Town of East Troy. A small portion extends into the adjacent Town of Troy.
Geography
Eas ...
about northeast of Elkhorn and junctions with
WIS 20 and
WIS 120. It then enters
Waukesha County
Waukesha County () is a county in the U.S. state of Wisconsin. As of the 2020 United States Census, the population was 406,978, making it the third-most populous county in Wisconsin. Its county seat and largest city is Waukesha.
Waukesha Co ...
at
Mukwonago
Mukwonago is a village in the U.S. state of Wisconsin. The population was 8,262 at the 2020 United States Census, 2020 census. The village is located mostly within the Mukwonago (town), Wisconsin, Town of Mukwonago in Waukesha County, Wisconsin, ...
.
I-43 crosses
WIS 83 at an interchange just southeast of the village. After about , the highway junctions with
WIS 164 just north of
Big Bend and then enters the city of
New Berlin where the freeway has interchanges with South Racine Avenue (CTH-Y) and South Moorland Road (CTH-O). It then turns east to enter
Milwaukee County.
, traffic volumes range from 21,000 around Elkhorn to 35,800 in Waukesha County to 85,000 (2007 figures) at
WIS 100.
The Beloit-to-Milwaukee portion (at the Hale Interchange with I-894) was given the name "Rock Freeway" because the freeway traverses Rock County and heads towards the cities in the
Rock River valley, including
Rockford, Illinois
Rockford is a city in Winnebago County, Illinois, located in the far northern part of the state. Situated on the banks of the Rock River, Rockford is the county seat of Winnebago County (a small portion of the city is located in Ogle County). ...
. However, the moniker generally only applies to the portion of the route in Waukesha and Milwaukee counties;
freeway names in southeastern Wisconsin media are used interchangeably with Interstate numbers. The freeway is entirely four lanes from Beloit to New Berlin. A six-lane segment begins where
US 45 merges on the Interstate.
![I43 Milwaukee Marq](https://upload.wikimedia.org/wikipedia/commons/3/37/I43_Milwaukee_Marq.png)
I-43 connects with US 45 south and WIS 100 at South 108th Street. US 45 joins the highway for , then turns northward onto
I-894 west and
I-41
Interstate 41 (I-41) is a north–south Interstate Highway connecting the interchange of I-94 and U.S. Route 41 (US 41), located south of the Wisconsin–Illinois border at the end of the Tri-State Tollway in metropolitan C ...
/
US 41 south at the
Hale Interchange
The Hale Interchange is the major interchange between Interstate 41 (I-41), I-43, I-894, US Highway 41 (US 41), and US 45 in the Milwaukee, Wisconsin, southwest suburb of Greenfield, though it takes it name from the nearby comm ...
, while I-43 follows I-894 east and I-41/US 41 south along the Airport Freeway into
Greenfield, (forming a
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 concurr ...
with I-41) with interchanges with
WIS 24,
WIS 36, and
WIS 241. At the
Mitchell Interchange, I-894 ends and I-41/
I-94/US 41 continues south while I-43 turns north to follow I-94 northbound, also known as the North–South Freeway, into downtown Milwaukee, where it meets
I-794 at the
Marquette Interchange
The Marquette Interchange is a major freeway interchange in downtown Milwaukee, Wisconsin, located near Marquette University where Interstate 43 (I-43, North–South Freeway), I-94 (North–South Freeway and East–West Freeway), and I-794 (Lake ...
. , the Airport Freeway carries 107,000–134,000 vehicles per day. The freeway between the Mitchell and Marquette interchanges carried less at that time—97,000 (closer to downtown) to 105,000.
The highway passes through mixed urban residential and industrial areas of the greater Milwaukee area, carrying six lanes throughout with the exception of near the Marquette Interchange where eight lanes of traffic exist.
![I43atWis83](https://upload.wikimedia.org/wikipedia/commons/0/01/I43atWis83.jpg)
I-43 continues north from the Marquette Interchange, while I-94 turns westward. After passing through downtown Milwaukee, just east of
Marquette University
Marquette University () is a Private university, private Society of Jesus, Jesuit research university in Milwaukee, Wisconsin. Established by the Society of Jesus as Marquette College on August 28, 1881, it was founded by John Henni, John Martin ...
, it crosses
US 18 at Highland Boulevard and crosses
WIS 145 at the McKinley Boulevard/Fond du Lac Avenue interchange. Exit 72C's northbound off- and on-ramps in downtown Milwaukee pass underneath the county courthouse via tunnels to Kilbourn Avenue.
On the way north out of Milwaukee, the Interstate passes through Glendale, junctioning with
WIS 190 (Capitol Drive) and
WIS 57 (Green Bay Avenue), and north of Good Hope Road has a grassy median with a
cable barrier
A cable barrier, sometimes referred to as guard cable or wire rope safety barrier (WRSB), is a type of roadside or median safety traffic barrier/guard rail. It consists of steel wire ropes mounted on weak posts. As is the case with any roadside b ...
. WIS 100 and
WIS 32
State Trunk Highway 32 (often called Highway 32, STH-32 or WIS 32) is a state highway in the U.S. state of Wisconsin that runs north–south in eastern Wisconsin. It runs from the Illinois border (at Illinois Route 137) north to the Michigan bor ...
connect at Brown Deer Road and WIS 32 follows the Interstate north into
Ozaukee County
Ozaukee County is a county in the U.S. state of Wisconsin. As of the 2020 census, the population was 91,503. Its county seat is Port Washington, making it one of three Wisconsin counties on Lake Michigan not to have a county seat with the same ...
.
Up to 146,000 vehicles used this portion daily in 2007. This count decreased further north, with a count of 78,900 vehicles per day near WIS 100's northern terminus and 69,600 closer to the Ozaukee County border.
As it passes through mixed residential and commercial zones north of downtown, the highway carries eight lanes of traffic downtown, six lanes of traffic north of North Avenue to Bender Road, and four lanes of traffic north of Bender road all the way to
Green Bay.
WIS 57 joins the freeway north of the county line in
Mequon
Mequon () is the largest city in Ozaukee County, in the U.S. state of Wisconsin, and the third-largest city in Wisconsin by land area. Located on Lake Michigan's western shore with significant commercial developments along Interstate 43, the com ...
at the junction with
WIS 167. The urban residential areas thin out north of this point as a mix of farmland and forest begins to dominate.
WIS 60 terminates in
Grafton at the Interstate further north and WIS 32 turns off toward
Port Washington north of WIS 60.
WIS 33 crosses the route in
Saukville
Saukville is a village in Ozaukee County, Wisconsin, Ozaukee County, Wisconsin, United States. Located on the Milwaukee River with a district along Interstate 43, the community is a suburb in the Milwaukee metropolitan area. The population was 4, ...
. WIS 57 turns north off the freeway, which turns eastward to go around Port Washington to the north. WIS 32 rejoins the freeway on the northside and the two routes follow the
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 ...
shoreline northeast into Sheboygan County.
WIS 32 leaves the freeway at
Cedar Grove and the Interstate passes
Oostburg
Oostburg ( Zeelandic Flemish: ''Wòstburg'') is a city in the south-western Netherlands. It located in the municipality of Sluis, in the province of Zeeland. As of 1 January 2015, its population is 4731, down from 5008 in January 2005. It received ...
to the east and
Sheboygan to the west. In Sheboygan, I-43 intersects
WIS 28,
WIS 23, and
WIS 42. I-43 enters Manitowoc County north of Sheboygan.
, traffic counts in southern Ozaukee County peak at 66,900 vehicles per day—this value generally decreases further north.
, the counts in Sheboygan County bottom out at 21,100 vehicles per day just south of the Manitowoc County line.
I-43 passes
Cleveland
Cleveland ( ), officially the City of Cleveland, is a city in the U.S. state of Ohio and the county seat of Cuyahoga County. Located in the northeastern part of the state, it is situated along the southern shore of Lake Erie, across the U.S. ...
on the county line. The highway continues to follow the lakeshore to straddle Manitowoc's westside, passing west of
Newton, Wisconsin, with a
weigh station
A weigh station is a checkpoint along a highway to inspect vehicular weights and safety compliance criteria. Usually, trucks and commercial vehicles are subject to the inspection.
Weigh stations are equipped with truck scales, some of which are ...
for southbound truck drivers located midway between Newton and Cleveland. I-43 connects with
US 151 and WIS 42. WIS 42 north follows the freeway north to the interchange with
US 10. WIS 42 leaves to the east along with US 10 east, and US 10 west follows I-43 north to the interchange with
WIS 310 where it turns off to the west. The Interstate passes
Francis Creek and
Maribel (at
WIS 147) and turns northwestward into Brown County, with a
rest stop
A rest area is a public facility located next to a large thoroughfare such as a motorway, expressway, or highway, at which drivers and passengers can rest, eat, or refuel without exiting onto secondary roads. Other names include motorway serv ...
located just before the county line.
I-43 in Manitowoc County has the least traveled portion of the highway with 17,400 vehicles passing south of WIS 147 according to 2005 results. These values increase further south.
The Interstate passes
Denmark
)
, song = ( en, "King Christian stood by the lofty mast")
, song_type = National and royal anthem
, image_map = EU-Denmark.svg
, map_caption =
, subdivision_type = Sovereign state
, subdivision_name = Danish Realm, Kingdom of Denmark
...
and meets the terminus of
WIS 96 north of the county line. The Interstate then continues another to
Bellevue Bellevue means "beautiful view" in French. It may refer to:
Placenames
Australia
* Bellevue, Western Australia
* Bellevue Hill, New South Wales
* Bellevue, Queensland
* Bellevue, Glebe, an historic house in Sydney, New South Wales
Canada ...
where
US 141 begins. This interchange provides access to
WIS 29, a route the freeway crosses under later. At this point, the Interstate enters urban residential areas as it approaches Green Bay.
I-43 junctions with
WIS 172 in
Allouez, then turns northeast to bypass Green Bay to the east, passing under the aforementioned WIS 29. After turning northwestward, the Interstate intersects
WIS 54 and WIS 57 and crosses the
Fox River on the
Leo Frigo Memorial Bridge, passing through a heavily industrialized area near the Port of Green Bay.
I-43 ends at I-41/US 41/US 141.
I-43's lowest traffic volume in this county is at the southernmost entry with a 2006 value of 22,100 vehicles per day near Denmark. Values around Green Bay range from 34,600 to 42,200 vehicles per day.
History
![I43atU S 151Sign](https://upload.wikimedia.org/wikipedia/commons/8/85/I43atU_S_151Sign.jpg)
Wisconsin had anticipated the Interstates with studies of possible toll roads. When the original Interstate System was approved, the state was only given two routes: I-90 and I-94.
The Wisconsin Transportation Commission submitted a request to add an Interstate in 1953 connecting Milwaukee to Green Bay, a request the federal government denied. The commission, after a study by Wisconsin Turnpike Commission—which was established in 1953—submitted a request in 1963 for a route that connected Milwaukee and Superior by way of Green Bay, Wausau, Hurley, and
Ashland which could be completed in increments. However, only the Milwaukee-to-Green Bay segment was approved.
The original plan for the northern part of I-43 was to locate it midway between US 141 and US 41, using most of the current alignment of WIS 57 north of
WIS 33 in
Saukville
Saukville is a village in Ozaukee County, Wisconsin, Ozaukee County, Wisconsin, United States. Located on the Milwaukee River with a district along Interstate 43, the community is a suburb in the Milwaukee metropolitan area. The population was 4, ...
;
additionally, it was proposed to use the
Interstate 57
Interstate 57 (I-57) is a north–south Interstate Highway in Missouri and Illinois that parallels the old Illinois Central Railroad for much of its route. It runs from Sikeston, Missouri, at I-55 to Chicago, Illinois, at I-94. I-57 ess ...
number, though that was changed due to resistance from Illinois to extend its portion through Chicago. But farmers and landowners within the corridor opposed the plan. According to the opponents of the I-43 construction, what the commission revealed as their plan to construct I-43 along the WIS 57 corridor did not reveal that instead of using the existing right-of-way, the freeway was to be built west of WIS 57. This was the case despite the fact that WIS 57 had a wide right-of-way of .
Protests, including farmers bringing their cows to graze on the
Wisconsin State Capitol
The Wisconsin State Capitol, located in Madison, Wisconsin, houses both chambers of the Wisconsin legislature along with the Wisconsin Supreme Court and the Office of the Governor. Completed in 1917, the building is the fifth to serve as the Wi ...
grounds, prompted a compromise to utilize the freeway built for US 141 between Milwaukee and Sheboygan instead, building the remaining freeway for the Interstate itself.
This plan, particularly the new freeway, met resistance from the
Brown
Brown is a color. It can be considered a composite color, but it is mainly a darker shade of orange. In the CMYK color model used in printing or painting, brown is usually made by combining the colors orange and black. In the RGB color model us ...
,
Sheboygan, and
Manitowoc county governments.
Construction first began in 1963 on the freeway that was, at the time, designated US 141. The first segment to begin construction was a segment beginning at the Port Washington Road exit in Milwaukee County. An additional of the highway were completed in Ozaukee County by 1964.
In 1965, a bypass of Sheboygan opened to traffic. The last major segment, consisting of of roadway, was started in 1972 after the last of these governments, Manitowoc County, pledged its support.
The portion in Milwaukee County extending from the Port Washington Road exit to the Marquette Interchange was completed in 1981 to open the route.
The route through Milwaukee was platted through the
Black-American
African Americans (also referred to as Black Americans and Afro-Americans) are an Race and ethnicity in the United States, ethnic group consisting of Americans with partial or total ancestry from sub-Saharan Africa. The term "African American ...
neighborhood of
Bronzeville. Historically,
segregation Segregation may refer to:
Separation of people
* Geographical segregation, rates of two or more populations which are not homogenous throughout a defined space
* School segregation
* Housing segregation
* Racial segregation, separation of humans ...
and related issues meant that this was the only place in Milwaukee where Black citizens could settle; it was later targeted for renewal to rid the city of what its political leadership saw as slums. The Interstate effectively finished off Bronzeville, as thousands of houses were seized via
eminent domain
Eminent domain (United States, Philippines), land acquisition (India, Malaysia, Singapore), compulsory purchase/acquisition (Australia, New Zealand, Ireland, United Kingdom), resumption (Hong Kong, Uganda), resumption/compulsory acquisition (Austr ...
and approximately a thousand businesses were razed.
The southwestern portion has also had a history of requests for Interstate routings. Interstate routings for such a connection between Beloit and the Milwaukee metropolitan area were requested by the
Wisconsin Department of Transportation
The Wisconsin Department of Transportation (WisDOT) is a governmental agency of the U.S. state of Wisconsin responsible for planning, building and maintaining the state's highways. It is also responsible for planning transportation in the state ...
(WisDOT) but denied by 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) in 1973. Another request for a link to Janesville was also denied. Despite the denials, local and state officials continued to seek funding to construct a freeway between these two metropolitan areas.
A government collaboration called the "Highway 15 Committee" was formed to present and promote the route. Construction began on the route in the 1960s with the first segment, a connector linking US 45 with I-894 as part of the project to build the Hale Interchange connecting the pending route with I-894. The new connector received the US 45 designation as that highway was transferred onto the freeway heading north. The first long segment was completed in 1969. It extended from the US 45 connector to CTH-F (now
WIS 164) in Big Bend. After this segment was opened, the WIS 15 designation was applied. The next segment, to
East Troy
East Troy is a village in Walworth County, Wisconsin, United States. The population was 4,687 at the 2020 census. The village is located southwest of the Town of East Troy. A small portion extends into the adjacent Town of Troy.
Geography
Eas ...
, was opened in 1972, the year the Highway 15 Committee had hoped the route would be completed in its entirety. It was extended to
Elkhorn in 1973 in conjunction with the
US 12 freeway construction, then to I-90 in 1976. I-43 signs were placed on the freeway by 1988 after designation in 1987, replacing WIS 15. I-43 was also mapped concurrently with I-94 and I-894 to link the two segments together.
Even though exit number tabs were labeled according to the new mileposts, the mileposts themselves were not renumbered to coincide with the current length until 1991.
The Marquette Interchange, which connects I-43 with I-94, and
I-794, was completely reconstructed over a four-year span, beginning in October 2004 and ending in September 2008. This project eliminated lefthand exits and widened connecting ramps between I-94 and I-43.
Major accidents
A
multiple-vehicle collision
A multiple vehicle collision (colloquially known as a pile-up, multi-car collision, multi-vehicle collision, or simply a multi) is a road traffic collision involving many vehicles. Generally occurring on high-capacity and high-speed routes such ...
on the northbound lanes of I-43 involving 52 vehicles, killing three and injuring at least 30 others, occurred on the
Tower Drive Bridge at 6:45 am March 12, 1990. The cause was a wall of fog with extremely limited visibility near the Fox River on an otherwise clear day.
On October 10, 2002, a multiple-vehicle collision occurred on I-43, just south of
Cedar Grove. The crash occurred on southbound I-43 in Sheboygan County just north of the Ozaukee–Sheboygan county line. It involved 50 vehicles and was found to have been caused by low visibility due to fog at a point where the freeway comes its closest to paralleling Lake Michigan, from shore. The crash and resulting fires led to the deaths of 10 individuals, making this crash the deadliest in Wisconsin history. In addition to the fatalities, 36 people were also injured in the pileup. According to witnesses at the scene, fire from the wreckage rose over into the air. First responders said many of the bodies they recovered were burned beyond recognition. Then-Sheboygan County Sheriff Loni Koenig said of the crash site, "In my 21 years
f law enforcement this is the most horrific scene I have ever seen, and I'm sure that it is for many of the people there." The crash has since been described as the worst traffic crash in Wisconsin state history.
Another multiple-vehicle collision occurred on March 5, 2019, on the Leo Frigo Bridge because of ice on the bridge. Nobody was severely injured.
Future
I-43 will expand from four to six lanes in total from Silver Spring Drive to
WIS 60, with the anticipated completion in late 2024.
Exit list
Alternate route
I-43 has an
alternate route
An official alternate route is a special route in the United States that provides an alternate alignment for a highway. They are loop roads and found in many road systems in the United States including the U.S. Highway system and various state an ...
within Manitowoc, Sheboygan, Ozaukee, and Milwaukee counties for situations requiring a road closure starting at
WIS 83 at exit 43 in Mukwonago to Calumet Avenue (US 151) at exit 149 in Manitowoc, mainly using the former
US 141 and
WIS 15 locally known as Port Washington Road and designated as CTH-W in Milwaukee and Ozaukee counties, while as a series of roads in Waukesha County. Past
WIS 33 in
Saukville
Saukville is a village in Ozaukee County, Wisconsin, Ozaukee County, Wisconsin, United States. Located on the Milwaukee River with a district along Interstate 43, the community is a suburb in the Milwaukee metropolitan area. The population was 4, ...
, the divided limited-access
WIS 57 at the I-43/WIS 57 split is designated Alt. I-43 to
WIS 23 in
Plymouth
Plymouth () is a port city and unitary authority in South West England. It is located on the south coast of Devon, approximately south-west of Exeter and south-west of London. It is bordered by Cornwall to the west and south-west.
Plymouth ...
, where it diverts off
WIS 32
State Trunk Highway 32 (often called Highway 32, STH-32 or WIS 32) is a state highway in the U.S. state of Wisconsin that runs north–south in eastern Wisconsin. It runs from the Illinois border (at Illinois Route 137) north to the Michigan bor ...
at
Sheboygan, then north to
WIS 42 at
Howards Grove north to Manitowoc.
See also
*
References
External links
I-43at Wisconsin Highways
at the Interstate Guide
at the Highways of the State of Wisconsin
{{DEFAULTSORT:Interstate 43
43
43
Freeways in the Milwaukee area
Lake Michigan Circle Tour
Transportation in Rock County, Wisconsin
Transportation in Walworth County, Wisconsin
Transportation in Waukesha County, Wisconsin
Transportation in Milwaukee County, Wisconsin
Transportation in Ozaukee County, Wisconsin
Transportation in Sheboygan County, Wisconsin
Transportation in Manitowoc County, Wisconsin
Transportation in Brown County, Wisconsin