Wisconsin Highway 123

State Trunk Highway 123
Route information
Maintained by WisDOT
Length	3.00 mi (4.83 km)
Major junctions
South end	CTH-DL in Baraboo
North end	WIS 33 / WIS 113 in Baraboo
Location
Country	United States
State	Wisconsin
Counties	Sauk
Highway system
Wisconsin State Trunk Highway System Interstate US State Scenic Rustic
← WIS 122 → WIS 124

State Trunk Highway 123 (often called Highway 123, STH 123 or WIS 123) is a former short state highway in the U.S. state of Wisconsin. It ran north–south in south central Wisconsin from the entrance to Devil's Lake State Park to Baraboo. It was phased out in June 2016 and turned over to local jurisdictions and County DL was extended.

Major intersections

The entire route is in Sauk County.

Location	mi	km	Destinations	Notes
Town of Baraboo			CTH-DL	Devil's Lake State Park entrance
			WIS 159 – Sauk City
Baraboo			Bus. US 12 east (South Boulevard)	Southern end of US 12 Business overlap
			WIS 113 south	Southern end of WIS 113 overlap
			Bus. US 12 west / WIS 33 (8th Avenue) / WIS 113 ends	Northern ends of US 12 Business and WIS 113 overlaps
1.000 mi = 1.609 km; 1.000 km = 0.621 mi       Concurrency terminus