# Wisconsin Highway 175

State Trunk Highway 175 (often called Highway 175, STH-175 or WIS 175) is a state highway in the US state of Wisconsin. It runs north–south in central Wisconsin from West Milwaukee to just south of Fond du Lac.
The highway follows the former route of U.S. Highway 41 (US 41) before US 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.

## History

The highway was shorted by 17.1 miles (27.5 km) on January 1, 2007. The northern terminus was moved from US 45 near Oshkosh to its present location near Fond du Lac. The portion in Winnebago County became County Trunk Highway R (CTH-R), and the portion in Fond du Lac County (including through the Van Dyne, North Fond du Lac, and Fond du Lac communities) became CTH-RP.
Numerous segments of the highway are marked for changing to local control, including segments in Washington County. It formerly went into the city of Fond du Lac before the 2010s, when the city's highway designations changed with the completion of the US 151 bypass.
Beginning in May 2015, US 41 south of Howard underwent conversion to Interstate 41 (I-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 WIS 341 between the Stadium Interchange and WIS 59.
In 2022, the Wisconsin Department of Transportation began exploring reconstructing Highway 175 in Milwaukee between North Avenue and Vliet Street in the Washington Heights neighborhood of Milwaukee. In 2016, Urban Milwaukee contributor John O'Neill wrote an article suggesting partial removal of the highway in order to improve pedestrian safety.

## Major intersections

| County | Location | Exit | Destinations | Notes |
| Milwaukee | West Milwaukee | | WIS 59 (National Avenue) | Southern terminus; southern end of freeway |
| Milwaukee | Milwaukee | — | American Family Field / Canal Street | |
| Milwaukee | Milwaukee | 38 | I-94 – Milwaukee, Madison | Only numbered southbound |
| Milwaukee | Milwaukee | — | US 18 | |
| Milwaukee | Milwaukee | — | State Street / Vliet Street | |
| Milwaukee | Milwaukee | — | Washington Boulevard | Northbound exit only |
| Milwaukee | Milwaukee | — | Lloyd Street | No southbound exit |
| Milwaukee | Milwaukee | | Lisbon Avenue | Northern end of freeway |
| Milwaukee | Milwaukee | | WIS 190 | |
| Milwaukee | Milwaukee | | WIS 181 | |
| Milwaukee | Milwaukee | | WIS 181 | |
| Milwaukee | Milwaukee | — | I-41 / US 41 / US 45 / WIS 100 / Metro Auto Mall | No access to southbound I-41 from northbound WIS 175 or northbound I-41 from southbound WIS 175; Metro Auto Mall northbound exit only |
| Washington | Richfield | | WIS 167 | Roundabout |
| Washington | Richfield | | WIS 145 | Northern terminus of WIS 145 |
| Washington | Town of Polk | | To WIS 164 | Grade-separated |
| Washington | Slinger | | WIS 60 – Hartford, Grafton | |
| Washington | Slinger | | WIS 144 north | Southern terminus of WIS 144 |
| Washington | Town of Hartford | | WIS 83 south – Hartford | Northern terminus of WIS 83 |
| Washington | Addison | | WIS 33 – Horicon, Allenton | |
| Dodge | Theresa | | WIS 28 west / WIS 67 south – Mayville | Southern end of WIS 28/WIS 67 concurrency |
| Dodge | Town of Theresa | | WIS 28 east – Kewaskum | Northern end of WIS 28 concurrency |
| Dodge | Lomira | | WIS 67 north | Northern end of WIS 67 concurrency |
| Dodge | Town of Lomira | | WIS 49 – Brownsville | |
| Fond du Lac | Fond du Lac | | US 151 | Northern terminus |
| 1.000 mi = 1.609 km; 1.000 km = 0.621 mi Concurrency terminus Incomplete access |||||||