Interstate 29 (I-29) is an Interstate Highway in the Midwestern United States. I-29 runs from Kansas City, Missouri, at a junction with I-35 and I-70, to the Canada–US border near Pembina, North Dakota, where it connects with Manitoba Provincial Trunk Highway 75 (PTH 75), which continues on to Winnipeg. The road follows the course of three major rivers, all of which form the borders of US states. The southern portion of I-29 closely parallels the Missouri River from Kansas City northward to Sioux City, Iowa, where it crosses and then parallels the Big Sioux River. For the northern third of the highway, it closely follows the Red River of the North. The major cities that I-29 connects to includes Council Bluffs, Iowa; Sioux Falls, South Dakota; and Fargo, North Dakota.
U.S. Route 69 (US 69) is a major north–south United States highway. When it was first created, it was only 150 miles (241 km) long, but it has since been expanded into a Minnesota to Texas cross-country route. The highway's southern terminus is in Port Arthur, Texas at an intersection with State Highway 87. Its northern terminus is in Albert Lea, Minnesota at Minnesota State Highway 13.
U.S. Route 83 (US 83) is a major north–south United States Numbered Highway that extends 1,885 miles (3,034 km) in the central United States. Only four other north–south routes are longer: US 1, US 41, US 59, and US 87, while US 83 follows a straighter north-south path than all of these. Nearly half of its mileage is in the state of Texas. The highway's northern terminus is north of Westhope, North Dakota, at the Canadian border, where it continues as Manitoba Highway 83 (PTH 83). The southern terminus is at the Veterans International Bridge in Brownsville, Texas. Together, US 83 and PTH 83 form a continuously numbered north-south highway with a combined distance of 3,450 kilometres (2,140 mi).
U.S. Highway 16 (US 16) is an east–west United States Numbered Highway between Rapid City, South Dakota, and Yellowstone National Park in Wyoming. The highway's eastern terminus is at a junction with Interstate 90 (I-90)/US 14, concurrent with I-190, in Rapid City. The western terminus is the east entrance to Yellowstone National Park, concurrent with US 14 and US 20. US 16 used to extend all the way to Michigan but has been truncated in favor of I-90 and I-96.
South Dakota Highway 10 (SD 10) is a 175.945-mile (283.156 km) state highway in the north-central and northeastern portions of South Dakota, United States. It connects SD 1804 in Pollock with the Minnesota state line southeast of Sisseton.
North Dakota Highway 23 is a 122.581-mile-long (197.275 km) east–west highway in northwestern North Dakota. ND 23's eastern terminus is at ND 41 near Velva, and its western terminus at U.S. Route 85 in Watford City.
South Dakota Highway 44 (SD 44) is a state highway in southern South Dakota that runs from U.S. Route 385 (US 385) west of Rapid City to Interstate 29 (I-29) south of Sioux Falls. It is just more than 379 miles (610 km) long.
South Dakota Highway 22 (SD 22) is a 48.546-mile-long (78.127 km) state highway in Hamlin and Deuel counties in South Dakota, United States. It connects Hazel and Clear Lake.
South Dakota Highway 15 (SD 15) is a 67.562-mile-long (108.730 km) state highway in the northeastern South Dakota, United States. It connects Clear Lake, Milbank, and Wilmot.
South Dakota Highway 19 (SD 19) is a 86.974-mile (139.971 km) state highway in southeastern South Dakota, United States. It connects the Nebraska state line, south of Vermillion, with the southeastern part of the Madison area, via Viborg, Hurley, Parker, and Humboldt. SD 19 formerly entered Centerville, but was shifted to the south. Its former path was redesignated as SD 19A. Its former southern terminus was at Vermillion, but was extended when a new bridge from Nebraska opened.
South Dakota Highway 20 (SD 20) is a 385.079-mile (619.725 km) state highway in northern South Dakota, United States, that connects the Montana state line, west-southwest of Camp Crook, with the Minnesota state line, east-southeast of Revillo, via Buffalo, Bison, Timber Lake, Mobridge, Selby, and Watertown. From Mobridge to the Walworth–Potter county line, this highway is part of the Lewis and Clark Trail. From about Timber Lake to just west of Mobridge, this highway is part of the Native American Scenic Byway. From the Montana state line to Camp Crook, the highway is a dirt road.
South Dakota Highway 11 (SD 11) is a 77.724-mile (125.085 km) state highway in eastern South Dakota, United States. It connects the northern part of the Sioux City metropolitan area with the Sioux Falls metropolitan area.
Interstate 90 (I-90) in the US state of South Dakota traverses east–west through the southern half of the state.
North Dakota Highway 1804 is a state highway in the U.S. state of North Dakota. ND 1804 and ND 1806 were named to reflect the years of Lewis and Clark's travels through the area, and together constitute the portion of the Lewis and Clark Trail that runs through North Dakota along the northeast and southwest sides of Lake Sakakawea and the Missouri River, respectively.
South Dakota Highway 1804 (SD 1804) is a 126.745-mile-long (203.976 km) state highway in the U.S. state of South Dakota.
South Dakota Highway 63 (SD 63) is a 167.455-mile (269.493 km) state highway in central South Dakota, United States, that connects U.S. Route 18 (US 18) south-southeast of Parmelee with the North Dakota state line north of McLaughlin.
North Dakota Highway 24 (ND 24) is a minor north–south highway contained entirely within Sioux County, North Dakota. It runs from one junction with ND 6 east of Selfridge near the South Dakota border to another junction on ND 6 west of Solen.
U.S. Highway 16 (US 16) is a 69-mile-long (111 km) east–west United States Numbered Highway in the western part of the U.S. state of South Dakota. It travels between Yellowstone National Park in Wyoming and Rapid City. In South Dakota, the highway extends from the Wyoming state line near Newcastle, Wyoming, to Interstate 90 (I-90) in Rapid City.
South Dakota Highway 204 is a short 2.131-mile-long (3.430 km) east-west state highway in central South Dakota. It serves as a crossing of the Missouri River, running directly overtop of the Oahe Dam.
South Dakota Highway 273 is a 12.7-mile-long (20.4 km) north-south state highway in Lyman County, South Dakota. It serves as a connection to SD 1806, linking it with the town of Kennebec and Interstate 90 (I-90).
US 18 near Bonesteel 
SD 44 west of Platte 
SD 273 north of Kennebec 
US 14 / US 83 / SD 34 in Fort Pierre 
US 12 / SD 20 northeast of Mobridge
ND 1806 in Kenel 
