South Dakota Highway 15
Encyclopedia
South Dakota Highway 15 is a state route that largely runs north to south across northeastern South Dakota
. The northern terminus is at the junction with Interstate 29
west of Wilmot
(exit 213) and the southern terminus is at I-29 west of Toronto
(exit 150). It is 78 miles (129 kilometers) in length.
to Sioux City
. The northern portion of the route, from U.S. Highway 12 to the North Dakota
border north of Claire City
, remained in place.
In the early 1950s, changes were made to the southern end. SD 15 was rerouted so the south end was at Milbank; it then went north to Hartford Beach, then west through Wilmot to U.S. Highway 81, before heading north again. The old alignment from Wilmot to U.S. 12 was designated at South Dakota Highway 15A.
In 1976, the segment of SD 15 from the North Dakota border to Claire City was made part of a realigned South Dakota Highway 25
, and the segment from Claire City to U.S. 81 near Claire City was designated as South Dakota Highway 106
. At that point, the northern terminus was located at U.S. 81 west of Wilmot.
After U.S. 77 was deleted in the early 1980s, SD 15 was extended south along the former's alignment from Milbank, to the present end at I-29 west of Toronto. One little known fact is that highway 77 starts in Milbank, South Dakota and ends in downtown Dallas, Texas. It ends at the railroad overpass where President John F. Kennedy was assassinated.
. This route was originally part of SD 15. In the early 1950s, the alignment of SD 15 was adjusted to add a segment between Wilmot
and Milbank
. The old alignment, between Wilmot and U.S. Highway 12, was designated as SD 15A. In 1976, when many of the suffixed state routes were eliminated, this route was redesignated as South Dakota Highway 123.
South Dakota
South Dakota is a state located in the Midwestern region of the United States. It is named after the Lakota and Dakota Sioux American Indian tribes. Once a part of Dakota Territory, South Dakota became a state on November 2, 1889. The state has an area of and an estimated population of just over...
. The northern terminus is at the junction with Interstate 29
Interstate 29
Interstate 29 is an Interstate Highway in the Midwestern United States. I-29 runs from Kansas City, Missouri, at a junction with Interstate 35 and Interstate 70 to the Canadian border near Pembina, North Dakota, where it connects with Manitoba Highway 75 via the short Manitoba Highway 29.-Route...
west of Wilmot
Wilmot, South Dakota
Wilmot is a city in Roberts County, South Dakota, United States. The population was 492 at the 2010 census.-Geography:Wilmot is located at ....
(exit 213) and the southern terminus is at I-29 west of Toronto
Toronto, South Dakota
Toronto is a town in Deuel County, South Dakota, United States. The population was 212 at the 2010 census.-Geography:Toronto is located at ....
(exit 150). It is 78 miles (129 kilometers) in length.
Route description
The route of SD 15 is defined in South Dakota Codified Laws § 31-4-137.http://legis.state.sd.us/statutes/DisplayStatute.aspx?Type=Statute&Statute=31-4-137History
South Dakota 15, when designated in the mid 1920's, ran north to south across the entire state, on the road known as the King of Trails. The extension of U.S. Highway 77 in 1930 largely replaced the numbering of SD 15, from MilbankMilbank, South Dakota
Milbank is a city in Grant County, South Dakota, along the South Fork of the Whetstone River. The population was 3,353 at the 2010 census. It is the county seat of Grant County. In 1925 The American Legion Department of South Dakota established a new program for high school aged youth that grew...
to Sioux City
Sioux City, Iowa
Sioux City is a city in Plymouth and Woodbury counties in the western part of the U.S. state of Iowa. The population was 82,684 in the 2010 census, a decline from 85,013 in the 2000 census, which makes it currently the fourth largest city in the state....
. The northern portion of the route, from U.S. Highway 12 to the North Dakota
North Dakota
North Dakota is a state located in the Midwestern region of the United States of America, along the Canadian border. The state is bordered by Canada to the north, Minnesota to the east, South Dakota to the south and Montana to the west. North Dakota is the 19th-largest state by area in the U.S....
border north of Claire City
Claire City, South Dakota
Claire City is a town in Roberts County, South Dakota, United States. The population was 76 at the 2010 census.-Geography:Claire City is located at ....
, remained in place.
In the early 1950s, changes were made to the southern end. SD 15 was rerouted so the south end was at Milbank; it then went north to Hartford Beach, then west through Wilmot to U.S. Highway 81, before heading north again. The old alignment from Wilmot to U.S. 12 was designated at South Dakota Highway 15A.
In 1976, the segment of SD 15 from the North Dakota border to Claire City was made part of a realigned South Dakota Highway 25
South Dakota Highway 25
South Dakota Highway 25 is a state route that runs north to south across a large portion of South Dakota. It is divided into two segments:* The main segment begins at the North Dakota border, with the junction of North Dakota Highway 18 north of Claire City. Its southern terminus is at the...
, and the segment from Claire City to U.S. 81 near Claire City was designated as South Dakota Highway 106
South Dakota Highway 106
Highway 106 is a short highway linking the village of Hammer to Claire City. It was commissioned in 1976, following the former route of South Dakota Highway 15.-Route description:...
. At that point, the northern terminus was located at U.S. 81 west of Wilmot.
After U.S. 77 was deleted in the early 1980s, SD 15 was extended south along the former's alignment from Milbank, to the present end at I-29 west of Toronto. One little known fact is that highway 77 starts in Milbank, South Dakota and ends in downtown Dallas, Texas. It ends at the railroad overpass where President John F. Kennedy was assassinated.
Junction list
Related routes
South Dakota Highway 15A was a short state route in northeastern South DakotaSouth Dakota
South Dakota is a state located in the Midwestern region of the United States. It is named after the Lakota and Dakota Sioux American Indian tribes. Once a part of Dakota Territory, South Dakota became a state on November 2, 1889. The state has an area of and an estimated population of just over...
. This route was originally part of SD 15. In the early 1950s, the alignment of SD 15 was adjusted to add a segment between Wilmot
Wilmot, South Dakota
Wilmot is a city in Roberts County, South Dakota, United States. The population was 492 at the 2010 census.-Geography:Wilmot is located at ....
and Milbank
Milbank, South Dakota
Milbank is a city in Grant County, South Dakota, along the South Fork of the Whetstone River. The population was 3,353 at the 2010 census. It is the county seat of Grant County. In 1925 The American Legion Department of South Dakota established a new program for high school aged youth that grew...
. The old alignment, between Wilmot and U.S. Highway 12, was designated as SD 15A. In 1976, when many of the suffixed state routes were eliminated, this route was redesignated as South Dakota Highway 123.