Existed: 1926 – present North end: US 81 east of Hayti Length 15.23 km Major cities Hayti, Lake Norden | South end: SD 28 in Lake Norden Counties: Hamlin Constructed 1926 | |
 | ||
County Hamlin County, South Dakota | ||
South Dakota Highway 21 (SD 21) is a short state route in east central South Dakota. The southwest end is located at the junction with South Dakota Highway 28 on the west edge of Lake Norden. After running northward to Hayti, it is routed east to end at the junction with U.S. Highway 81. It is 9.5 miles (15 kilometers) in length.
Contents
Map of SD-21, Hayti, SD 57241, USA
Route description
SD 21 begins at an intersections with SD 28 in the city of Lake Norden. From SD 28, it heads north past the western shores of Lake Norden. The highway makes a short jog to the east and then continues north towards Hayti. Through Hayti, the highway passes within feet of the eastern shore of Lake Marsh. At Redbird Street in Hayti, SD 21 turns to the east for the remainder of its route. It ends at U.S. Route 81 about 4 miles (6.4 km) east of Hayti.
History
The original South Dakota 21 was in place when the U.S. highway system was implemented in 1926. At that time, U.S. Highway 81 was assigned to the route of SD 21, and both numbers shared the road. When U.S. 81 in this area was rerouted a few miles east, SD 21 was kept on the old alignment, and has remained in place since.
Major intersections
The entire route is in Hamlin County.