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 16 is a Wisconsin state highway running from Pewaukee across the state to La Crosse. Much of its route in the state parallels the former mainline of the Milwaukee Road and current mainline of the Canadian Pacific Railway. Interstate 90 (I-90) or I-94 parallels Highway 16 for most of its length in the state. It serves local traffic in nearby cities including La Crosse, Tomah, Wisconsin Dells, Portage, Columbus, Watertown, Oconomowoc and Waukesha. The highway is mainly two-lane surface road or urban multi-lane expressway from La Crosse to Oconomowoc, and it is a freeway east of Oconomowoc.
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 64 (WIS 64) is a 275.65-mile-long (443.62 km) highway in Wisconsin, which runs from the St. Croix Crossing bridge as a continuation of Minnesota State Highway 36 (MN 36) near Stillwater, Minnesota, and continues east to its eastern terminus in downtown Marinette, where it terminates at US Highway 41 (US 41) at an intersection on the corner of Marinette and Hall Avenue. Along the way, Highway 64 runs east–west through eight counties across northern Wisconsin.
State Trunk Highway 19 is a state highway in the U.S. state of Wisconsin. It provides a more direct route from U.S. Highway 14 near Mazomanie east to Highway 16 at Watertown, passing around the north side of Madison. WIS 19 is a local connector route that links the communities of Waunakee, Sun Prairie and Watertown. The highway follows two lane surface road for the entire length with the exception of urban multilane arterials.
State Trunk Highway 20 is a 42.95-mile (69.12 km) state highway in Walworth and Racine counties in southeastern Wisconsin, United States. The route is a short connector that bridges the city of Whitewater and points west via U.S. Highway 12 (US 12) with East Troy, Waterford and Racine. WIS 20 is a two-lane surface road with various four-lane roads within cities.
State Trunk Highway 38 is a 25.33-mile (40.76 km) state highway in Racine and Milwaukee counties in the US state of Wisconsin that is a north–south route from downtown Racine in the south to downtown Milwaukee in the north.
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 59 is a state highway that runs east–west in the southeastern part of the U.S. state of Wisconsin from Milwaukee to Monroe.
State Trunk Highway 74 was a state highway in the U.S. state of Wisconsin. A semi-urban road that ran entirely in Waukesha County, it went north from Pewaukee and turned east at Sussex toward Menomonee Falls.
State Trunk Highway 75 is a 12.10-mile (19.5 km) state highway in the southeastern part of U.S. state of Wisconsin. The highway runs from Wisconsin Highway 50 and Wisconsin Highway 83 in Paddock Lake north to Wisconsin Highway 20 east of Waterford. WIS 75 serves Kenosha and Racine Counties. The highway is maintained by the Wisconsin Department of Transportation.
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 99 was a state highway in the U.S. state of Wisconsin. It ran east–west between Eagle and Mukwonago. The road was turned over to Waukesha County maintenance in 1999, and is now County Trunk Highway LO (CTH-LO). The designation was chosen to honor Lloyd Owens, long-time Waukesha County Board Chairman.
State Trunk Highway 142 is a mostly rural highway connecting Burlington with Kenosha.
State Trunk Highway 182 is a 33.41-mile (53.77 km) state highway in Price and Iron counties in northwestern Wisconsin, United States, that runs east–west from Park Falls to Manitowish.
State Trunk Highway 190 is a state highway in the U.S. state of Wisconsin. It runs east–west in southeast Wisconsin from Pewaukee to Shorewood.
U.S. Highway 41 (US 41) is a north–south highway United States Numbered Highway in eastern Wisconsin. It runs from Pleasant Prairie on the Illinois border north to Marinette on the Michigan border. Most of the route is concurrent with Interstate 41 in the state, with the exception of the portion between Howard, a suburb of Green Bay, and Marinette.
US Highway 18 in the state of Wisconsin runs east–west across the southern part of the state. The highway serves as major connecting route between Madison and the southwest corner of the state. East of Madison, the route parallels Interstate 94 and serves as a local connection route to the communities along the interstate. US 18 enters Wisconsin at Prairie du Chien and ends in downtown Milwaukee at Lincoln Memorial Drive, across from the Milwaukee Art Museum.
State Trunk Highway 318 (WIS 318) is a 2.0-mile (3.2 km) state highway in Waukesha County, Wisconsin, United States, that runs north–south as a bypass route along the northwest border of the city of Waukesha. The highway follows Meadowbrook Road and is maintained by the Wisconsin Department of Transportation (WisDOT).
WIS 36 in Waterford 
I-43 in Big Bend 
US 18 in Waukesha 
WIS 60 in Slinger 
