Interstate 39 (I-39) is a highway in the Midwestern United States. I-39 runs from Normal, Illinois, at I-55 to State Trunk Highway 29 (WIS 29) in the town of Rib Mountain, Wisconsin, which is approximately six miles (9.7 km) south of Wausau. I-39 was designed to replace U.S. Route 51 (US 51), which, in the early 1980s, was one of the busiest two-lane highways in the United States. I-39 was built in the 1980s and 1990s.
U.S. Highway 151 (US 151) is a United States Numbered Highway that runs through the states of Iowa and Wisconsin. The southern terminus for US 151 is at a junction with Interstate 80 (I-80) in Iowa County, Iowa, and its northern terminus is at Manitowoc, Wisconsin. The route, from south to north follows a northeasterly path through the two states.
State Trunk Highway 54 is a Wisconsin state highway running east–west across central Wisconsin. It is 243.12 miles (391.26 km) in length.
State Trunk Highway 35 is a Wisconsin state highway running north–south across western Wisconsin. It is 412.15 miles in length, and is the longest state highway in Wisconsin. Portions of WIS 35 are part of the Great River Road.
State Trunk Highway 15 is a 14.8-mile (23.8 km)state highway in Outagamie County in the US state of Wisconsin that runs east–west and provides a shortcut to Appleton from U.S. Highway 45 (US 45) for travelers inbound from points north and west. Most of WIS 15 was once part of US 45, which was redirected south of New London to bypass Appleton and provide direct access to Oshkosh and points south.
State Trunk Highway 36 is a state highway in the U.S. state of Wisconsin. It runs in a diagonal southwest–northeast direction across southeastern Wisconsin from Springfield which is north of Lake Geneva to Milwaukee.
State Trunk Highway 42 is a state highway in the U.S. state of Wisconsin. It runs for 135 miles (217 km) north–south in northeast Wisconsin from Sheboygan to the ferry dock in Northport. Much of the highway is part of the Lake Michigan Circle Tour from the eastern junction with U.S. Highway 10 (US 10) in Manitowoc to its junction with WIS 57 in Sister Bay. WIS 42 parallels I-43 from Sheboygan to Manitowoc, and parallels WIS 57 throughout much of the route, particularly from Manitowoc to Sturgeon Bay, meeting the northern terminus of WIS 57 in Sister Bay.
State Trunk Highway 44 is a state highway in the U.S. state of Wisconsin. It runs in a diagonal southwest–northeast direction in east-central Wisconsin from Pardeeville to Oshkosh.
State Trunk Highway 65 is a state highway in the U.S. state of Wisconsin. It runs north–south in west central Wisconsin from St. Croix Falls to Ellsworth.
State Trunk Highway 68 is a 9.51-mile (15.30 km) state highway in Dodge County in the US state of Wisconsin that runs from WIS 33 in Fox Lake east to WIS 49 in Waupun. WIS 68 is maintained by the Wisconsin Department of Transportation (WisDOT).
State Trunk Highway 70 is a state highway in the U.S. state of Wisconsin. It runs east–west in northern Wisconsin from a shared terminus with WIS 101 at US Highway 2 (US 2) and US 141 near Florence to a connection with Minnesota State Highway 70 (MN 70) at the St. Croix River five miles (8.0 km) west of Grantsburg in Burnett County. It serves the communities of Grantsburg, Siren, Spooner, and the resort areas of Minocqua, Woodruff and Eagle River along its route. WIS 70 is the third-most northern route to almost completely cross Wisconsin, stretching from Minnesota to within four miles (6.4 km) of the Michigan border.
State Trunk Highway 71 is a 53.55-mile (86.18 km) state highway in Jackson, Monroe, and Juneau counties in the southwestern area of the US state of Wisconsin that runs in a southeast–northwest direction from the Village of Melrose to Elroy.
State Trunk Highway 72 is a 29.44-mile (47.38 km) state highway state highway in Pierce and Dunn counties in Wisconsin, United States. It runs in west central Wisconsin from US Highway 10 (US 10) and US 63 east of Ellsworth east to WIS 25 in Downsville. The road is maintained by the Wisconsin Department of Transportation (WisDOT).
State Trunk Highway 83 is a state highway in the U.S. state of Wisconsin. It runs north–south in southeast Wisconsin from Hartford to the Illinois border in the village of Salem Lakes.
State Trunk Highway 122 is a 14.69-mile-long (23.64 km) state highway in the US state of Wisconsin. It runs north–south from WIS 77 in Upson to the Michigan border near Saxon; the route is located entirely within Iron County. WIS 122 is maintained by the Wisconsin Department of Transportation (WisDOT).
State Trunk Highway 129 is a 2.69-mile (4.33 km) state highway in central Grant County, Wisconsin, United States, that runs from U.S. Route 61/Wisconsin Highway 35/Wisconsin Highway 81 (US 61/WIS 35/WIS 81) southeast of the city of Lancaster north to US 61 northeast of the city of Lancaster, bypassing the city to the east. WIS 129 is maintained by the Wisconsin Department of Transportation.
State Trunk Highway 155 is a 6.94-mile (11.17 km) state highway in Vilas County, Wisconsin, United States, that runs north–south from Wisconsin Highway 70 (WIS 70) St. Germain to the northern of two junctions with County Trunk Highway N (CTH‑N) Sayner. The highway is maintained by the Wisconsin Department of Transportation.
State Trunk Highway 162 is a state highway in the U.S. state of Wisconsin. It runs in north–south in southwest Wisconsin from Stoddard to Four Corners.
State Trunk Highway 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. Because of this, the highway along this section is very straight.
U.S. Highway 51 (US 51) in the U.S. state of Wisconsin runs north–south through the central part of the state. It enters from Illinois at Beloit, and runs north to its northern terminus in Hurley where it meets US 2. Much of the route of US 51 runs concurrently with Interstate 39 (I-39).
WIS 16 in West Salem 
WIS 54 / WIS 71 in Melrose 
