US 1 / US 78 / US 278 / SC 125 southwest of Clearwater
North end
US 1 / US 78 in Aiken
Location
Country
United States
State
South Carolina
Counties
Aiken
Highway system
South Carolina State Highway System
Interstate
US
State
Scenic
← SC 420
→ SC 430
South 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.
^"Highway Logmile Report". South Carolina Department of Transportation. Retrieved November 11, 2020.
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Global Information
US 1 / US 78 / US 278 / SC 125 southwest of Clearwater
