South Dakota Highway 47

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Highway 47 marker

Highway 47
Route of SD 47 (in red)
Route information
Defined by SDCL §31-4-167
Maintained by SDDOT
Length240.866 mi[1][2][3] (387.636 km)
Major junctions
South end N-137
North end37th Avenue Southeast at the North Dakota border
Highway system
  • South Dakota Highways
SD 46SD 48

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.


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. Several alignment changes have occurred since then:

  • Around 1932: The south end of SD 47 was truncated at Platte.
  • Around 1936: The north end of SD 47 was extended west to Chamberlain, then north to the intersection of U.S. Highway 14 at Highmore.
  • Around 1939: The segment between Pukwana and Platte was redesignated as part of South Dakota Highway 43. SD 47 was rerouted west from Chamberlain to Oacoma, then extended southward to U. S. 18 at Gregory.
  • Circa 1950: South end extended to the Nebraska border, via a shared alignment with U. S. 18 to Burke.
  • 1955: In Oacoma, SD 47 was rerouted west to near Reliance, before heading south to meet with the old alignment near the White River. On the north end, SD 47 was extended north to Eureka via Lebanon and Bowdle.
  • 1965: North end was extended to the North Dakota border.
  • 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, 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[edit]

Keya Paha0.0000.000 N-137 southContinuation into Nebraska
GregoryBurke12.52620.159 US 18 eastEastern end of US 18 concurrency
Gregory20.60733.164 US 18 west / SD 251 southNorthern terminus of SD 251, western end of US 18 concurrency
30.92349.766 SD 44
Lyman57.04091.797 SD 49 southNorthern terminus of SD 49
I-90 – ChamberlainI-90 exit 251.
Reliance69.696112.165 SD 248
BuffaloFort Thompson89.034143.286 SD 249 northSouthern terminus of SD 249
89.639144.260 SD 34 eastSouthern end of SD 34 concurrency
Hyde99.110159.502 SD 34 westNorthern end of SD 34 concurrency
Highmore120.931194.620 US 14 – Pierre, Huron
138.539222.957 SD 26 eastWestern terminus of SD 26
Faulk157.633253.686 US 212 eastEastern end of US 212 concurrency
Potter171.602276.167 US 212 westWestern end of US 212 concurrency
181.590292.241 SD 20 eastSouthern end of SD 20 concurrency
Walworth185.270298.163 SD 20 westNorthern end of SD 20 concurrency
199.254320.668 US 12 westWestern end of US 12 concurrency
EdmundsBowdle206.415332.193 US 12 eastEastern end of US 12 concurrency
215.665347.079 SD 253 southNorthern terminus of SD 253
McPhersonEureka227.833366.662 SD 10 westWestern end of SD 10 concurrency
228.764368.160 SD 10 eastEastern 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

Related route[edit]

Highway 47W
LocationFort ThompsonReliance
Length19 mi (31 km)
Existed1965 (approx.)–1976

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.


  1. ^ a b "State Highway Log: Mitchell Region" (PDF). South Dakota Department of Transportation. January 2012. Retrieved December 26, 2013.
  2. ^ a b "State Highway Log: Pierre Region" (PDF). South Dakota Department of Transportation. January 2012. Retrieved December 26, 2013.
  3. ^ a b "State Highway Log: Aberdeen Region" (PDF). South Dakota Department of Transportation. January 2012. Retrieved December 26, 2013.

External links[edit]

Route map:

KML is from Wikidata