South Carolina Highway 421

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SC 421 marker

SC 421
Augusta Road
Route information
Maintained by SCDOT
Length: 10.36 mi[1] (16.67 km)
Existed: 1952 – present
Major junctions
South end: US 1 / US 78 / US 278 / SC 125 in Clearwater
North end: US 1 / US 78 in Aiken
Location
Counties: Aiken
Highway system
SC 420 SC 430

South Carolina Highway 421 (SC 421) is a primary state highway in the U.S. state of South Carolina. It is an alternate route to US 1/US 78 between Aiken and Augusta, Georgia.

Route description[edit]

SC 421 begins where it splits off from the US 1/US 78 (Jefferson Davis Highway) west of North Augusta; it immediately connecting 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. Majority of the highway is four-lanes that travels a total of 10.5 miles (16.9 km).[2]

History[edit]

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[edit]

The entire route is in Aiken County.

Location Mile[1] km Destinations Notes
Clearwater 0.00 0.00 US 1 north / US 78 east (Jefferson Davis Highway) – Aiken Northbound lane only
0.44 0.71 US 278 / SC 125 (Atomic Road) – North Augusta, Augusta, Beech Island, Savannah River Site Southbound lane exit onto interchange
1.91 3.07 SC 126 west (Belvedere-Clearwater Road) – Belvedere
Warrenville 8.15 13.12 SC 191 north (Old Graniteville Highway) – Graniteville, Vaucluse
Aiken 10.03 16.14 SC 118 (Hitchcock Parkway)
10.36 16.67 US 1 / US 78 (Jefferson Davis Highway) – Aiken
1.000 mi = 1.609 km; 1.000 km = 0.621 mi

See also[edit]

References[edit]

External links[edit]

Route map: Google / Bing