South Carolina Highway 421

South Carolina Highway 421 marker
South Carolina Highway 421
Augusta Road
Route information
Maintained by SCDOT
Length10.360 mi[1] (16.673 km)
Existed1952[citation needed]–present
Major junctions
South end US 1 / US 78 / US 278 / SC 125 southwest of Clearwater
North end US 1 / US 78 in Aiken
Location
CountryUnited States
StateSouth Carolina
CountiesAiken
Highway system
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.

  1. ^ "Highway Logmile Report". South Carolina Department of Transportation. Retrieved November 11, 2020.