U.S. 21 North

A diamond interchange with a roundabout joins U.S. 21 (Trask Parkway) north with U.S. 17 (Charleston Highway) at Gardens Corner.
12/31/17

Northbound U.S. 21 partitions into single lane ramps for U.S. 17 north to Charleston and the 6.38 mile long overlap with U.S. 17 south toward Savannah, Georgia.
12/31/17

S.C. 6 overlaps with U.S. 21 north en route to Swansea.
09/16/21

S.C. 6 accompanies U.S. 21 (Columbia Road) north 1.57 miles to Center Hill Road.
09/16/21

S.C. 6 continues 10.8 miles west to U.S. 321 in the town of Swansea.
09/16/21

Sunny Plain Road (Road 30) ties into U.S. 21 at the north split with S.C. 6 ahead of this confirming marker.
09/16/21

U.S. 21 north descends to Big Beaver Creek and the Lexington County line.
09/16/21

09/16/21

S.C. 322 (Cherry Street) heads northeast along the former route of U.S. 21 Business to U.S. 21 (Anderson Road) on the north side of Rock Hill.
09/20/21