Sample markers | |
 Map of North Dakota highway system | |
| Highway names | |
|---|---|
| Interstates | Interstate X (I-X) |
| US Highways | U.S. Route X (US X) |
| State | N.D. Highway X (ND X) |
| System links | |
| |
The Interstate Highways in North Dakota are the segments of the Dwight D. Eisenhower National System of Interstate and Defense Highways owned and maintained by the North Dakota Department of Transportation (NDDOT) in the US state of North Dakota.
| Number | Length (mi) [1] | Length (km) | Southern or western terminus | Northern or eastern terminus | Formed | Removed | Notes | |
|---|---|---|---|---|---|---|---|---|
 I-29 | 217.517 | 350.060 | I-29 at South Dakota state line | PTH 75 at Canada–US border near Pembina | 1958 | current | ||
 I-31 | — | — | Fargo | PTH 75 at Canada–US border near Pembina | 1957 | 1958 | Replaced by I-29 | |
 I-94 | 352.454 | 567.220 | I-94 at Montana state line | I-94 / US 52 at Minnesota state line | 1958 | current | ||
 I-194 | 1.072 | 1.725 | I-94 in Mandan | ND 810 in Bismarck | 1958 | current | Part of the Bismarck Expressway; I-194 is unsigned | |
| ||||||||
| Number | Length (mi) | Length (km) | Southern or western terminus | Northern or eastern terminus | Formed | Removed | Notes | |
|---|---|---|---|---|---|---|---|---|
 I-94 BL | — | — | — | — | — | — | Serves Medora | |
| I-94 BL | — | — | — | — | — | — | Serves Dickinson | |
| I-94 BL | — | — | — | — | — | — | Serves Mandan | |
| I-94 BL | — | — | — | — | — | — | Serves Bismarck | |
| I-94 BL | — | — | — | — | — | 2004 | Served Jamestown | |
| I-94 BL | — | — | — | — | — | — | Serves Valley City | |
| I-94 BL | — | — | — | — | — | — | Serves Fargo | |
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; Fargo, North Dakota; and Grand Forks, North Dakota.
Interstate 90 (I-90) is an east–west transcontinental freeway and the longest Interstate Highway in the United States at 3,021 miles (4,862 km). It begins in Seattle, Washington, and travels through the Pacific Northwest, Mountain West, Great Plains, Midwest, and the Northeast, ending in Boston, Massachusetts. The highway serves 13 states and has 15 auxiliary routes, primarily in major cities such as Chicago, Cleveland, Buffalo, and Rochester.
U.S. Route 75 is a north–south U.S. Highway that runs 1,239 miles (1,994 km) in the central United States. The highway's northern terminus is located at the Canadian border near Noyes, Minnesota, at a now-closed border crossing. From this point, the highway once continued farther north as Manitoba Highway 75. Its southern terminus is located at Interstate 30 (I-30) and I-45 in Dallas, Texas, where US 75 is known as North Central Expressway.
U.S. Route 81 or U.S. Highway 81 (US 81) is a major north–south U.S. highway that extends for 1,220 miles (1,960 km) in the central United States and is one of the original United States Numbered Highways established in 1926 by the American Association of State Highway Officials.
A concurrency in a road network is an instance of one physical roadway bearing two or more different route numbers. When two roadways share the same right-of-way, it is sometimes called a common section or commons. Other terminology for a concurrency includes overlap, coincidence, duplex, triplex, multiplex, dual routing or triple routing.
Minnesota State Highway 30 (MN 30) is a 265.503-mile-long (427.286 km) highway in southwest and southeast Minnesota, which runs from South Dakota Highway 34 at the South Dakota state line near Airlie, west of Pipestone, and continues to its eastern terminus at its intersection with Minnesota Highway 43 in Rushford.
U.S. Route 281 (US 281) is a United States Numbered Highway that runs from the Mexican border in the Rio Grande Valley to the Canadian border near Dunseith, North Dakota. In the state of Texas, the highway is a major south–north corridor, connecting Brownsville to the Oklahoma state line at the Red River in Burkburnett. Several segments of U.S. 281 are concurrent with Interstate routes, including I-69C in the Rio Grande Valley, I-37 in San Antonio, and I-44 north of Wichita Falls.
In the US state of Iowa, Interstate 29 (I-29) is a north–south Interstate Highway which closely parallels the Missouri River. I-29 enters Iowa from Missouri near Hamburg and heads to the north-northwest through the Omaha–Council Bluffs and the Sioux City areas. It exits the state by crossing the Big Sioux River into South Dakota. For its entire distance through the state, it runs on the flat land between the Missouri River and the Loess Hills.
Interstate 29 (I-29) is a north–south Interstate Highway in the midwestern United States. In the state of South Dakota, I-29 traverses on the eastern side of the state from the Iowa border near Sioux City to the North Dakota border near New Effington. On its route, I-29 passes through western portions of Sioux Falls, the state's largest city. It travels 252.5 miles (406.4 km) in the state, the longest stretch of any of the four states through which it passes. I-229, the highway's lone auxiliary route in South Dakota, serves as a bypass around southern and eastern Sioux Falls.
Interstate 29 (I-29) in the US state of North Dakota runs from the state's southern border with South Dakota near Hankinson to the Canadian border just north of Pembina. The highway runs concurrently twice with U.S. Highway 81 (US 81). The first such overlap begins in Watertown, South Dakota, across the state line to Manvel. The other is from exit 203 to the Canadian border. The highway runs somewhat parallel to the Minnesota border to the east and passes through two major cities, Fargo and Grand Forks.
North Dakota Highway 15 (ND 15) is a 134.137-mile-long (215.873 km) east–west state highway in central North Dakota. The western terminus is at U.S. Route 52 (US 52) in Fessenden and the eastern terminus is at Interstate 29 (I-29) and US 81 near Thompson. ND 15 was designated in 1939.
This article describes transportation in the U.S. state of South Dakota.
U.S. Route 81 (US-81) is a part of the U.S. Highway System that travels from Fort Worth, Texas to the Pembina–Emerson Border Crossing near Pembina, North Dakota. In the U.S. state of Kansas, US-81 is a main north–south highway central part of the state. Wichita is the only metropolitan area US-81 serves in the state but the highway does serve several other larger towns in Kansas such as Wellington and Concordia.
U.S. Route 281 (US 281) is a part of the U.S. Highway System that travels from Hidalgo, Texas and Brownsville, Texas, to its northern terminus at the International Peace Garden, north of Dunseith, North Dakota. In the U.S. state of North Dakota, US 281 extends from the South Dakota state line south of Ellendale, North Dakota and ends at the North Dakota–Manitoba border.
U.S. Highway 77 (US 77) is the shortest U.S. Highway in the state of Iowa. It crosses into Iowa over the Missouri River from South Sioux City, Nebraska, at Sioux City and runs approximately three-tenths mile (500 m) to an interchange with Interstate 29 where the road continues north as Wesley Parkway. Like all other state highways in Iowa, the route is maintained by the Iowa Department of Transportation.
North Dakota Highway 22 (ND 22) is a 156.051-mile-long (251.140 km) major north–south state highway in North Dakota. It begins at the South Dakota state line south of the small town of Reeder and ends at ND 23 west of New Town and north of Mandaree. The route has one concurrency with U.S. Route 12. The highway widely parallels US 85, running about fifteen miles east of it.
U.S. Highway 75 (US 75) is a United States Highway in northwestern Iowa. It begins at the Missouri River on a bridge with Interstate 129 (I-129) and US 20. Immediately upon landing in Iowa from Nebraska, I-129 ends at an interchange with I-29. US 20 and US 75 continue around Sioux City on a four-lane expressway until US 20 exits to the east. US 75 heads to the north-northeast, parallel to the Floyd River, until Le Mars. There, Iowa Highway 60 (Iowa 60) continues northeastward on the expressway while US 75 heads due north. Near Hull, it is briefly overlapped by US 18. It leaves the state and enters Minnesota north of Rock Rapids.
South Dakota Highway 100 is the designation of a future state highway that will be built south and east of Interstate 229 (I-229) as a second southeastern bypass of Sioux Falls. The highway will run from exit 73 on I-29 east and north to exit 402 on I-90. This highway is currently named Veterans Parkway on its route from Interstate 90 to 57th Street in Sioux Falls.
North Dakota Highway 14 is a 175.003-mile-long (281.640 km) north–south state highway in the U.S. state of North Dakota. ND 14's southern terminus is at Interstate 94 (I-94) and U.S. Route 83 west of Hague, and the northern terminus is a continuation as Manitoba Highway 21 (PTH 21) at the Canada–United States border.
North Dakota Highway 31 (ND 31) is a north–south state highway in the U.S. state of North Dakota. The southern segments southern terminus is a continuation as South Dakota Highway 65 (SD 65) at the South Dakota border, and the northern terminus is at ND 21 west of Flasher. The northern segments southern terminus is at Interstate 94 (I-94) north of New Salem and the northern terminus is a continuation as County Route 37 (CR 37) at the end of state maintenance in Stanton.
Media related to Interstate Highways in North Dakota at Wikimedia Commons
