Wisconsin Highway 175

State Trunk Highway 175 (often called Highway 175, STH 175 or WIS 175) is a state highway in the U.S. state of Wisconsin. It runs north–south in central Wisconsin from West Milwaukee to just south of Fond du Lac.

State Trunk Highway 175 marker

State Trunk Highway 175
Route information
Maintained by WisDOT
Length51.40 mi[1] (82.72 km)
Major junctions
South end WIS 59 in West Milwaukee
North end US 151 in Fond du Lac
CountiesMilwaukee, Waukesha, Washington, Dodge, Fond du Lac
Highway system
WIS 174WIS 176
Former northern terminus

The highway follows the former route of U.S. Highway 41 before 41's current route was created between 1953 and 1955. Portions of the highway were part of the Yellowstone Trail. North Fond du Lac created a park dedicated to the trail, which was the first transcontinental automobile highway through the upper tier of states in the United States.


Commemorative sign along former WIS 175 at Yellowstone Trail Park in North Fond du Lac

The highway was shorted by 17.1 miles (27.5 km) on January 1, 2007. The northern terminus was moved from U.S. Route 45 near Oshkosh to its present location near Fond du Lac. The portion in Winnebago County became County Highway R, and the portion in Fond du Lac County (including through the Van Dyne, North Fond du Lac, and Fond du Lac communities) became County Highway RP.[2]

Numerous segments of the highway are marked for changing to local control, including segments in Washington County.

2015 extensionEdit

Beginning in May 2015, most of U.S. Route 41 in Wisconsin underwent conversion to Interstate 41 and rerouted to follow an existing freeway alignment in Milwaukee County. Beginning the following month, WIS 175 signs began replacing US 41 signs in the Milwaukee area, where the designation was extended beyond I-94 along the Stadium Freeway, also replacing Highway 341 between the Stadium Interchange and WIS 59.[3]

Major intersectionsEdit

MilwaukeeWest Milwaukee0.00.0  WIS 59 (National Avenue)Southern terminus; southern end of freeway
Milwaukee0.50.80Miller Park / Canal Street
1.01.638  I-94 – Milwaukee, MadisonOnly numbered southbound
1.32.1  US 18
1.82.9State Street / Vliet Street
2.23.5Washington BoulevardNorthbound exit only
2.64.2Lloyd StreetNo southbound exit
2.84.5Lisbon AvenueNorthern end of freeway
5.58.9  WIS 190
5.89.3  WIS 181
5.89.3  WIS 181
9.515.3     I-41 / US 41 / US 45 / WIS 100 / Metro Auto MallNo access to southbound I-41 from northbound WIS 175 or northbound I-41 from southbound WIS 175; Metro Auto Mall northbound exit only
WashingtonRichfield  WIS 167Roundabout
Polk  To WIS 164Grade-separated
Slinger  WIS 60 – Hartford, Grafton
  WIS 144 northSouthern terminus of WIS 144
Town of Hartford  WIS 83 south – HartfordNorthern terminus of WIS 83
Addison  WIS 33 – Horicon, Allenton
DodgeTheresa   WIS 28 west / WIS 67 south – MayvilleSouthern end of WIS 28/WIS 67 concurrency
Town of Theresa  WIS 28 east – KewaskumNorthern end of WIS 28 concurrency
Lomira  WIS 67 northNorthern end of WIS 67 concurrency
Town of Lomira  WIS 49 – Brownsville
Fond du LacFond du Lac  US 151Northern terminus
1.000 mi = 1.609 km; 1.000 km = 0.621 mi


  1. ^ Bessert, Chris. "Wisconsin Highways: Highways 170-179 (Highway 175)". Wisconsin Highways. Retrieved 2007-05-16.
  2. ^ Press release from the Wisconsin Department of Transportation "WIS 175 in Winnebago and Fond du Lac counties being renamed", retrieved May 16, 2007
  3. ^ Marley, Patrick (July 29, 2013). "Highway 41's upgrade to interstate is ahead of schedule". Milwaukee Journal Sentinel. Retrieved August 1, 2013.