South Dakota Highway 47

South Dakota Highway 47 (SD 47) is a state route that runs north to south across the central portion of South Dakota. It begins at an unnumbered highway at the North Dakota border north of Eureka, and ends at the Nebraska border, where it becomes Nebraska Highway 137. It is just under 241 miles (388 km) in length.

Highway 47 marker

Highway 47

Route of SD 47 (in red)
Route information
Maintained by SDDOT
Length240.866 mi[1][2][3] (387.636 km)
Existed1927–present
Major junctions
South end N-137
Major intersections
North end37th Avenue Southeast at the North Dakota border
Location
CountryUnited States
StateSouth Dakota
Highway system
  • South Dakota State Trunk Highway System
SD 46 SD 48

History

When initially established in the mid-1920s, South Dakota 47 extended from U.S. Highway 16 at Pukwana to U.S. Highway 18 at Wheeler, along what is currently portions of South Dakota Highway 50 and Charles Mix County Highway 49. Around 1932, the south end of SD 47 was truncated at Platte, then a few years later in 1936, SD 47 was extended west to Chamberlain, before heading north to the intersection of U.S. Highway 14 at Highmore.

The segment between Pukwana and Platte was redesignated as part of South Dakota Highway 43 c.1939, and SD 47 was rerouted west from Chamberlain to Oacoma, then extended southward to U. S. 18 at Gregory. 11 years later, c.1950, SD 47 was extended south to the Nebraska border, via a shared alignment with U. S. 18 to Burke.

In 1955, near Oacoma, SD 47 was rerouted west to near Reliance, before heading south to meet with the old alignment near the White River. Also in 1955, SD 47 was extended north to Eureka via Lebanon and Bowdle. Ten years later, in 1965, the highway would be extended further north to the North Dakota border.

In 1976, the segment between Ft. Thompson and Reliance, which had previously passed through Chamberlain and Oacoma, was rerouted onto the more direct road formerly known as South Dakota Highway 47W,[4] which had been constructed around 1965. The previous segment between Ft. Thompson and Chamberlain was designated as an extension of South Dakota Highway 50.

Major intersections

CountyLocationmi[1][2][3]kmDestinationsNotes
Keya Paha0.0000.000
N-137 south
Continuation into Nebraska
GregoryBurke12.52620.159
US 18 east / Lewis and Clark Trail
Eastern end of US 18 concurrency
Gregory20.60733.164

US 18 west / SD 251 south
Northern terminus of SD 251, western end of US 18 concurrency
30.92349.766 SD 44
Lyman57.04091.797
SD 49 south
Northern terminus of SD 49
66.827–
66.951
107.548–
107.747
I-90 ChamberlainI-90 exit 251.
Reliance69.696112.165 SD 248 / Lewis and Clark Trail
BuffaloFort Thompson89.034143.286
SD 249 north
Southern terminus of SD 249
89.639144.260
SD 34 east / Lewis and Clark Trail
Southern end of SD 34 concurrency
Hyde99.110159.502
SD 34 west / Lewis and Clark Trail
Northern end of SD 34 concurrency
Highmore120.931194.620 US 14 Pierre, Huron
138.539222.957
SD 26 east
Western terminus of SD 26
Faulk157.633253.686
US 212 east
Eastern end of US 212 concurrency
Potter171.602276.167
US 212 west
Western end of US 212 concurrency
181.590292.241
SD 20 east
Southern end of SD 20 concurrency
Walworth185.270298.163
SD 20 west
Northern end of SD 20 concurrency
199.254320.668
US 12 west
Western end of US 12 concurrency
EdmundsBowdle206.415332.193
US 12 east
Eastern end of US 12 concurrency
215.665347.079
SD 253 south
Northern terminus of SD 253
McPhersonEureka227.833366.662
SD 10 west
Western end of SD 10 concurrency
228.764368.160
SD 10 east
Eastern end of SD 10 concurrency
McIntosh240.866387.63637th Avenue SoutheastContinuation into North Dakota
1.000 mi = 1.609 km; 1.000 km = 0.621 mi

Highway 47W marker

Highway 47W

LocationFort Thompson Reliance
Length19 mi (31 km)
Existed1965 (approx.)–1976[4]

South Dakota Highway 47W was a state route located in central South Dakota. SD 47W designated around 1965, on a newly constructed road linking Fort Thompson and Reliance. This designation was used only for 10 years; it was made part of South Dakota Highway 47 when a portion of that route was realigned.

References

  1. "State Highway Log: Mitchell Region" (PDF). South Dakota Department of Transportation. January 2012. Retrieved December 26, 2013.
  2. "State Highway Log: Pierre Region" (PDF). South Dakota Department of Transportation. January 2012. Retrieved December 26, 2013.
  3. "State Highway Log: Aberdeen Region" (PDF). South Dakota Department of Transportation. January 2012. Retrieved December 26, 2013.
  4. "Numbers Changed on Some Highways". The Rapid City Journal. February 27, 1975. p. 21. Retrieved December 18, 2021 via Newspapers.com. open access
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