South Dakota Highway 89

Highway 89
Route of SD 89 (in red)
Route information
Defined by SDCL §31-4-183
Maintained by SDDOT
Length:	34.5 mi[1][2] (55.5 km)
Existed:	1950 – present
Major junctions
South end:	US 18 near Minnekahta
	US 385 in Pringle US 16A in Custer
North end:	SD 87 in Custer State Park
Highway system
South Dakota Highways ← SD 87 I-90 →

South Dakota Highway 89 (SD 89) is a state highway in southwest South Dakota. The highway is 40 miles (64 km) long and runs from U.S. Route 18 near Minnekahta to South Dakota Highway 87 in Custer State Park. SD 89 is co-signed with U.S. Route 385 from Pringle to Custer. The portion of the highway from Custer to SD 87 is part of the Peter Norbeck Scenic Byway.

History

SD 89 was established in 1950 from Spearfish to Minnekahta. The section from Spearfish to SD 87 was changed to U.S. Route 14 Alternate and U.S. Forest Service roads. The section of SD 89 from Custer to Sylvan Lake was once part of an alternate route of U.S. Route 85.

Major intersections

County	Location	mi[1][2]	km	Destinations	Notes
Fall River	​	0.0	0.0	US 18
Custer	Pringle	15.6	25.1	US 385 south	South end of US 385 concurrency
	Custer	27.2	43.8	US 16 west	South end of US 16 concurrency
		27.7	44.6	US 16 east / US 385 north US 16A begins	North end of US 16 and US 385 concurrencies, south end of US 16A concurrency
		28.4	45.7	US 16A north	North end of US 16A concurrency
	Custer State Park	34.5	55.5	SD 87
1.000 mi = 1.609 km; 1.000 km = 0.621 mi       Concurrency terminus

References

Route map: Bing / Google