South Dakota Highway 391
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|---|---|---|---|---|
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| Route information | ||||
| Defined by SDCL §31-4-236 | ||||
| Maintained by SDDOT | ||||
| Length: | 3.362 mi[1] (5.411 km) | |||
| Major junctions | ||||
| South end: |
 N-27 at the Nebraska state line | |||
| North end: |
 US 18 near Denby | |||
| Location | ||||
| Counties: | Oglala Lakota | |||
| Highway system | ||||
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South Dakota Highway 391 (SD 391) is a state highway in the U.S. state of South Dakota. It runs from Nebraska Highway 27 (N-27) at the Nebraska state line to U.S. Route 18 (US 18) east of Denby. The whole highway is located in Oglala Lakota County and in the Pine Ridge Indian Reservation. It is maintained by the South Dakota Department of Transportation (SDDOT), and is not part of the National Highway System.
Route description
SD 391 begins at the Nebraska state line as a continuation of N-27 and travels northeast through rolling plains on the Pine Ridge Indian Reservation in Oglala Lakota County. The highway curves to the northwest, then bends to the north near its northern terminus. Shortly after this, the route ends at an intersection with US 18.[2]
SD 391 is maintained by SDDOT. In 2012, the traffic on the highway was measured in average annual daily traffic, and SD 391 had an average of 920 vehicles.[1] The designation is not a part of the National Highway System,[3] a system of highways important to the nation's defense, economy, and mobility.[4]
Major intersections
| County | Location | mi[1] | km | Destinations | Notes |
|---|---|---|---|---|---|
| Sheridan | | 0.000 | 0.000 | N-27 | Continuation into Nebraska |
| Oglala Lakota | Pine Ridge Indian Reservation | 3.362 | 5.411 | US 18 | Northern terminus |
| 1.000 mi = 1.609 km; 1.000 km = 0.621 mi | |||||
References
- 1 2 3 "State Highway Log" (PDF). South Dakota Department of Transportation. January 2012. Retrieved March 3, 2013.
- ↑ Google (March 3, 2013). "South Dakota Highway 391" (Map). Google Maps. Google. Retrieved March 3, 2013.
- ↑ National Highway System: South Dakota (PDF) (Map). Federal Highway Administration. October 1, 2012. Retrieved March 3, 2013.
- ↑ Natzke, Stefan; Neathery, Mike; Adderly, Kevin (September 26, 2012). "What is the National Highway System?". National Highway System. Federal Highway Administration. Retrieved March 3, 2013.