| ||||
|---|---|---|---|---|
| Augusta Road | ||||
) | ||||
| Route information | ||||
| Maintained by SCDOT | ||||
| Length | 10.360 mi[1] (16.673 km) | |||
| Existed | 1952–present | |||
| Major junctions | ||||
| South end |    US 1 / US 78 / US 278 southwest of Clearwater | |||
| North end | US 1 / US 78 in Aiken | |||
| Location | ||||
| Counties | Aiken | |||
| Highway system | ||||
| ||||
)
SC 420
SC 430South Carolina Highway 421 (SC 421) is a 10.360-mile (16.673 km) state highway in the U.S. state of South Carolina. It is an alternate route to U.S. Route 1 (US 1) and US 78 between North Augusta and Aiken.
Route description
SC 421 begins where it splits off from US 1/US 78 (Jefferson Davis Highway) southwest of Clearwater; it immediately connects with US 278/SC 125 (Atomic Road). Heading northeast, it parallels US 1/US 78 to its south, going through the towns of Clearwater, Burnettown, Langley, Gloverville and Warrenville. Upon entering Aiken, it reconnects with US 1/US 78. A majority of the highway is four-lanes that travels a total of 10.4 miles (16.7 km).[2]
History
SC 421 was established by 1952 as a renumbering of US 1/US 78, which was realigned onto new four-lane routing just north of it. The route has remained unchanged since inception.[3][4]
Major intersections
The entire route is in Aiken County.
| Location | mi[1] | km | Destinations | Notes | |
|---|---|---|---|---|---|
| | 0.000 | 0.000 | US 1 north / US 78 east (Jefferson Davis Highway) – Aiken | Northbound lane only; southern terminus | |
| Clearwater | 0.230 | 0.370 |  US 278 / SC 125 (Atomic Road) – North Augusta, Augusta, Beech Island, Savannah River Site | Northern end of US 278 concurrency (northbound lane only); southbound lane exit onto interchange | |
| 1.910 | 3.074 |  SC 126 west (Belvedere-Clearwater Road) – Belvedere | Eastern terminus of SC 126 | ||
| Warrenville | 8.150 | 13.116 |  SC 191 north (Old Graniteville Highway) – Graniteville, Vaucluse | Southern terminus of SC 191 | |
| Aiken | 10.030 | 16.142 |  SC 118 (Hitchcock Parkway / SC 19 Truck) | ||
| 10.360 | 16.673 | US 1 / US 78 (Jefferson Davis Highway) – Aiken | Northern terminus | ||
| 1.000 mi = 1.609 km; 1.000 km = 0.621 mi | |||||
References
- ^ a b "Highway Logmile Report". South Carolina Department of Transportation. Retrieved November 11, 2020.
- ^ South Carolina Highway 421 (Map). Cartography by Google. Google Maps. 2010.
- ^ General Highway Map, Aiken County, South Carolina (PDF) (Map). Cartography by SCDOT. South Carolina Department of Transportation. 1940. Retrieved September 8, 2013.
- ^ General Highway Map, Aiken County, South Carolina (PDF) (Map). Cartography by SCDOT. South Carolina Department of Transportation. 1956. Retrieved September 8, 2013.
External links
Media related to South Carolina Highway 421 at Wikimedia Commons- SC 421 at Virginia Highways' South Carolina Highways Annex
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