Wisconsin Highway 173

State Trunk Highway 173
WIS 173 highlighted in red
Route information
Maintained by WisDOT
Length	36.85 mi[1] (59.30 km)
Major junctions
South end	WIS 21 west of Wyeville
Major intersections	WIS 80 southwest of Babcock WIS 80 in Babcock
North end	WIS 73 in Nekoosa
Location
Country	United States
State	Wisconsin
Counties	Monroe, Juneau, Wood
Highway system
Wisconsin State Trunk Highway System Interstate US State Scenic Rustic
← WIS 172 → WIS 174

State Trunk Highway 173 (often called Highway 173, STH-173 or WIS 173) is a 36.85-mile (59.30 km) state highway in Monroe, Juneau, and Wood counties in the central region of the US state of Wisconsin that runs north–south from near Wyeville to Nekoosa. From Valley Junction to Babcock it is built on top of an abandoned former main line of the Wisconsin Valley Railroad (later the Milwaukee Road). Because of this, the highway along this section is very straight.