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, 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 Dakota people, Dakota Sioux ...

. It begins at the

Nebraska Nebraska ( ) is a landlocked U.S. state, state in the Midwestern United States, Midwestern region of the United States. It borders South Dakota to the north; Iowa to the east and Missouri to the southeast, both across the Missouri River; Ka ...

border northeast of Niobrara, Nebraska, as a continuation of Nebraska Highway 14. It runs to the

North Dakota North Dakota ( ) is a U.S. state in the Upper Midwest, named after the indigenous Dakota people, Dakota and Sioux peoples. It is bordered by the Canadian provinces of Saskatchewan and Manitoba to the north and by the U.S. states of Minneso ...

border north of Hecla, where it continues as North Dakota Highway 1. 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 The Missouri River is a river in the Central United States, Central and Mountain states, Mountain West regions of the United States. The nation's longest, it rises in the eastern Centennial Mountains of the Bitterroot Range of the Rocky Moun ...

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 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, a ...

. 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 states, Mountain West, Great Pla ...

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 Route number, numbered or maintained by a sub-national state or province. A road numbered ...

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