South Dakota Highway 89
South Dakota Highway 89 (SD 89) is a 34.5-mile (55.5 km) state highway in Fall River and Custer counties in South Dakota, United States, that travels from U.S. Route 18 (US 18) near Minnekahta to SD 87 in Custer State Park. SD 89 is concurrent with US 385 from Pringle to Custer. The portion of the highway from Custer to SD 87 is part of the Peter Norbeck Scenic Byway.
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|---|---|---|---|---|
 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 | |||
| North end |  SD 87 in Custer State Park | |||
| Location | ||||
| Counties | ||||
| Highway system | ||||
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History
SD 89 was established in 1950 from Spearfish to Minnekahta. The section from SD 87 to Spearfish was redesignated as US 14 Alternate and U.S. Forest Service roads. The section of SD 89 from Custer to Sylvan Lake was once part of US 85 Alternate and replaced in December 1952.[3]
Major intersections
| County | Location | mi[1][2] | km | Destinations | Notes |
|---|---|---|---|---|---|
| Fall River | | 0.0 | 0.0 | US 18 – Edgemont, Hot Springs, The Mammoth Site, George S. Mickelson Trail Burlington Route Minnekahta Trailhead | Southern terminus |
| Custer | Pringle | 15.6 | 25.1 |  US 385 south – Hot Springs | South end of US 385 concurrency |
| Custer | 27.2 | 43.8 |  US 16 west (Mt. Rushmore Road) – Jewel Cave Natl. Monument | South end of US 16 concurrency | |
| 27.7 | 44.6 |  US 16 east / US 385 north (North 5th Street) / US 16A begins | North end of US 16 and US 385 concurrencies; western terminus of US 16A; south end of US 16A concurrency | ||
| 28.4 | 45.7 | US 16A east – Custer State Park Stockade Lake Entrance, Legion Lake | North end of US 16A concurrency | ||
| Custer State Park | 34.5 | 55.5 | SD 87 (Needles Highway) – Park Entrance Station, Sylvan Lake, Harney Peak Trailhead, Sylvan Lake Lodge, Hill City | Northern terminus | |
1.000 mi = 1.609 km; 1.000 km = 0.621 mi
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References
- General Highway Map (PDF) (Map). Fall River County. South Dakota Department of Transportation. 2010. Retrieved December 19, 2011.
- General Highway Map (PDF) (Map). Custer County. South Dakota Department of Transportation. 2010. Retrieved December 19, 2011.
- "Several Hills Highways Given New Numbers". Deadwood Pioneer-Times. Deadwood, South Dakota. December 3, 1952. p. 1. Retrieved December 18, 2019 – via Newspapers.com.
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