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Wisconsin Highway 23

State Trunk Highway 23 marker

State Trunk Highway 23
Route information
Maintained by WisDOT
Length: 211.05 mi (339.65 km)
Major junctions
South end: WIS 11 / CTH-P in Shullsburg
  US 151 in Mineral Point
US 151 in Dodgeville
US 18 in Dodgeville
US 14 / WIS 60 in Spring Green
I-90 / I-94 in Lake Delton
US 12 / WIS 13 / WIS 16 in Wis. Dells
I-39 / US 51 / WIS 82 in Oxford
I-41 / US 41 in Fond du Lac
US 45 in Fond du Lac
US 151 in Fond du Lac
I-43 in Sheboygan
East end: WIS 28 / WIS 42 in Sheboygan
Location
Counties: Lafayette, Iowa, Sauk, Columbia, Adams, Marquette, Green Lake, Fond du Lac, Sheboygan
Highway system
WIS 22 WIS 24

State Trunk Highway 23 marker

State Trunk Highway 23 (often called Highway 23, STH 23 or WIS 23) is a state highway in the U.S. state of Wisconsin. The route is signed as a north–south route from Shullsburg to Reedsburg and as an east–west route from Reedsburg to Sheboygan. With the exception of freeway segments between Sheboygan Falls and Sheboygan, an expressway segment between Sheboygan Falls and near Greenbush, a freeway concurrency with I-39, and an expressway segment concurrent with U.S. Route 151, the highway is generally either two-lane surface road or urban multilane arterial. WIS 23 provides access to several important Wisconsin destinations, such as the House on the Rock, the Wisconsin Dells area and various state parks.

WIS 23 begins at WIS 11 in Lafayette County, five miles (8 km) east of Shullsburg, and passes north through Darlington. WIS 23 shares one mile (1.6 km) of road with WIS 81 starting at Avon, just south of the city, and ending in Darlington. WIS 23 passes through rolling hills in the town of Willow Springs and enters Iowa County ten miles (16 km) north of the city. From the county line, WIS 23 turns northwestward to Mineral Point. WIS 39 joins the route one mile (1.6 km) southeast of the city, and turns west off in the downtown area. WIS 23 turns northeast and joins US 151 for a four-mile (6 km) expressway concurrency. WIS 23 turns off US 151 at a trumpet interchange and passes through downtown Dodgeville. The highway junctions with WIS 191 in the city and crosses US 18 on the north side. Access to Governor Dodge State Park is provided off WIS 23. The highway passes the House on the Rock nine miles (14 km) north of Dodgeville. WIS 23 passes Tower Hill State Park at the Sauk County line.


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