} South Dakota Highway 37 (SD 37) is a state route that runs across eastern

South Dakota South Dakota (; Sioux language, Sioux: , ) is a U.S. state in the West North Central states, North Central region of the United States. It is also part of the Great Plains. South Dakota is named after the Lakota people, Lakota and Dakota peo ...

. It begins at the

Nebraska Nebraska () is a state in the Midwestern region of the United States. It is bordered by South Dakota to the north; Iowa to the east and Missouri to the southeast, both across the Missouri River; Kansas to the south; Colorado to the southwe ...

border northeast of Niobrara, Nebraska, as a continuation of

Nebraska Highway 14 Nebraska Highway 14 (N-14) is a highway in the U.S. state of Nebraska. It has a southern terminus at the Kansas border, where it continues south as K-14, southwest of Superior and a northern terminus east of Niobrara at the South Dakota border. ...

. It runs to the

North Dakota North Dakota () is a U.S. state in the Upper Midwest, named after the Native Americans in the United States, indigenous Dakota people, Dakota Sioux. North Dakota is bordered by the Canadian provinces of Saskatchewan and Manitoba to the north a ...

border north of Hecla, where it continues as

North Dakota Highway 1 North Dakota Highway 1 (ND 1) is a major north–south highway in North Dakota. It runs from Manitoba Highway 31 in Maida to South Dakota Highway 37 south of Ludden. It is in length. Route description ND 1 enters North Dakota as a continu ...

. It is in length.

Route description

History

South Dakota 37 was in place by 1926, and largely has used the same alignment since. The only significant exception was in northeast South Dakota, where SD 37 originally went westward from Groton to Bath, then north via Columbia to Houghton, where it continued to Hecla. This segment was rerouted to the current alignment by 1929. On the south end, the road ended at the Missouri River at Running Water. A seasonal ferry was in place to carry traffic across the river. A direct connection via bridge did not open until 1998 when the

Chief Standing Bear Memorial Bridge The Chief Standing Bear Memorial Bridge is a bridge across the Missouri River at the Nebraska-South Dakota border. Located near Niobrara, Nebraska, not far downstream from the confluence of the Niobrara River with the Missouri, it joins Nebraska ...

was completed. In the early and mid-1930s, the segment between Huron and Tripp was co-numbered as

U.S. Route 281 U.S. Route 281 (US 281) is a north–south United States Numbered Highway. At it is the longest continuous three-digit U.S. Route. The highway's northern terminus is at the International Peace Garden, north of Dunseith, North Dakota, at t ...

. This concurrency was dropped by 1936, when US 281 was realigned further west. The segment between Huron and Mitchell was upgraded to a 4-lane expressway, and was largely completed by 2004. A minor rerouting around the west end of Mitchell occurred, resulting in a concurrency with

Interstate 90 Interstate 90 (I-90) is an east–west transcontinental freeway and the longest Interstate Highway in the United States at . It begins in Seattle, Washington, and travels through the Pacific Northwest, Mountain West, Great Plains, Midwest, and ...

Legal definition

The route of SD 37 is defined in South Dakota Codified Laws § 31-4-158.

Major intersections

Related route

South Dakota Highway 37A (SD 37A) is a north–south

state highway A state highway, state road, or state route (and the equivalent provincial highway, provincial road, or provincial route) is usually a road that is either ''numbered'' or ''maintained'' by a sub-national state or province. A road numbered by a ...

in the U.S. state of

. SD 37A's southern terminus is at SD 37 in Tripp, and the northern terminus is at US 18 north of Tripp.

References

External links

{{Attached KML, display=title,inline
South Dakota Highways Page: Highways 31-60
037 Transportation in Bon Homme County, South Dakota Transportation in Hutchinson County, South Dakota Transportation in Davison County, South Dakota Transportation in Sanborn County, South Dakota Transportation in Beadle County, South Dakota Transportation in Spink County, South Dakota Transportation in Brown County, South Dakota