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
Route of SD 47 (in red)
Route information
Defined by SDCL §31-4-167
Maintained by SDDOT
Length	240.866 mi[1][2][3] (387.636 km)
Existed	1927–present
Major junctions
South end	N-137
North end	37th Avenue Southeast at the North Dakota border
Highway system
South Dakota Highways Interstate U.S. State ← 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. 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

County	Location	mi[1][2][3]	km	Destinations	Notes
Keya Paha	​	0.000	0.000	N-137 south	Continuation into Nebraska
Gregory	Burke	12.526	20.159	US 18 east	Eastern end of US 18 concurrency
	Gregory	20.607	33.164	US 18 west / SD 251 south	Northern terminus of SD 251, western end of US 18 concurrency
	​	30.923	49.766	SD 44
Lyman	​	57.040	91.797	SD 49 south	Northern terminus of SD 49
	​	66.827– 66.951	107.548– 107.747	I-90 – Chamberlain	I-90 exit 251.
	Reliance	69.696	112.165	SD 248
Buffalo	Fort Thompson	89.034	143.286	SD 249 north	Southern terminus of SD 249
		89.639	144.260	SD 34 east	Southern end of SD 34 concurrency
Hyde	​	99.110	159.502	SD 34 west	Northern end of SD 34 concurrency
	Highmore	120.931	194.620	US 14 – Pierre, Huron
	​	138.539	222.957	SD 26 east	Western terminus of SD 26
Faulk	​	157.633	253.686	US 212 east	Eastern end of US 212 concurrency
Potter	​	171.602	276.167	US 212 west	Western end of US 212 concurrency
	​	181.590	292.241	SD 20 east	Southern end of SD 20 concurrency
Walworth	​	185.270	298.163	SD 20 west	Northern end of SD 20 concurrency
	​	199.254	320.668	US 12 west	Western end of US 12 concurrency
Edmunds	Bowdle	206.415	332.193	US 12 east	Eastern end of US 12 concurrency
	​	215.665	347.079	SD 253 south	Northern terminus of SD 253
McPherson	Eureka	227.833	366.662	SD 10 west	Western end of SD 10 concurrency
		228.764	368.160	SD 10 east	Eastern end of SD 10 concurrency
McIntosh	​	240.866	387.636	37th Avenue Southeast	Continuation into North Dakota
1.000 mi = 1.609 km; 1.000 km = 0.621 mi       Concurrency terminus

Related route

Highway 47W
Location	Fort Thompson – Reliance
Length	19 mi (31 km)
Existed	1965 (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.

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.

External links

• South Dakota Highways Page: Highways 31-60