South Carolina Highway 12

South Carolina Highway 12
Route information
Maintained by SCDOT
Length	28.250 mi[1][2][3] (45.464 km)
Existed	1940[4]–present
Major junctions
West end	US 1 in West Columbia
Major intersections	US 378 in West Columbia US 21 / US 176 / US 321 in Columbia US 76 in Columbia US 1 in Columbia I-77 in Columbia
East end	I-20 / US 601 near Lugoff
Location
Country	United States
State	South Carolina
Counties	Lexington, Richland, Kershaw
Highway system
South Carolina State Highway System Interstate US State Scenic
← SC 11 → SC 14

South Carolina Highway 12 (SC 12) is a 28.250-mile (45.464 km) state highway in the U.S. state of South Carolina. It serves Columbia and areas to its east. It serves as a parallel route to Interstate 20 (I-20) for much of its length.

The route begins as a four-lane highway, splitting from U.S. Highway 1 (US 1) where it is known as Jarvis Klapman Boulevard. Through West Columbia, the highway has a mix of at-grade intersections (including one at SC 35) and interchanges (with 9th Street and US 378). It crosses the Congaree River on the Jefferson Davis McMahan Bridge headed into downtown Columbia. For a 0.6-mile (0.97 km) stretch in Columbia, the highway splits into a one way pair separated by a city block: Hampton Street and Park Street for eastbound traffic, and Taylor Street and Williams Street for westbound traffic. Continuing east, the route keeps the name Taylor Street. After its intersection with US 1, the road changes its name to Forest Drive as it passes through Forest Acres.^[5]

After a sharp turn at the unsigned Spur SC 12, the road is known as Percival Road, then Fort Jackson Road. North and east of downtown Columbia, the route runs next to Fort Jackson and parallel to I-77 then I-20. The route traverses through rural land before reaching its terminus at US 601 at I-20's exit 92.^[5]

There have been two previous versions of SC 12. The first version ran from the 5th Street Bridge at the Georgia-South Carolina state line near Augusta, Georgia, to Aiken, Leesville, and Lexington, South Carolina before ending in West Columbia. Today, this route is marked as US 1 from the state line to West Columbia, which was assigned the route in 1927. SC 12 was dropped from the route in 1928, the year afterwards.

The second former route of SC 12 was established between 1928 and 1931. The route ran from what is now US 521 between Lancaster and Fort Mill for two miles (3.2 km) to the North Carolina state line near Waxhaw, North Carolina, at what was then NC 25. In 1934, North Carolina changed NC 25 to NC 75, and South Carolina renumbered SC 12 to SC 75 four years later, in 1938.^[4]

County	Location	mi[1][2][3]	km	Destinations	Notes
Lexington	West Columbia	0.000	0.000	US 1 (Augusta Road) to I-26 – Lexington	No access from SC 12 west to US 1 north; western terminus
		1.380	2.221	SC 35 (12th Street) to US 378 – Cayce
		1.740	2.800	9th Street (SC 12 Conn.)	Interchange
		2.285	3.677	US 378 (Sunset Boulevard) – Lexington	Eastbound entrance and westbound exit only; interchange
Richland	Columbia	3.110	5.005	US 21 / US 176 / US 321 (Huger Street) to I-126
		3.790	6.099	SC 48 (Assembly Street)
		4.190	6.743	US 76 (Bull Street)
		4.780	7.693	SC 555 north (Harden Street)	Southern terminus of SC 555
		5.120	8.240	US 1 (Two Notch Road)
	Forest Acres	6.760	10.879	SC 16 (North Beltline Boulevard)
	Columbia	8.890	14.307	Forest Drive east (SC 12 Spur east) to I-77 – Fort Jackson	Western terminus of SC 12 Spur, which takes on the Forest Drive name.
	Columbia–Woodfield line	10.700	17.220	I-77 south / Decker Boulevard – Charleston	Northbound I-77 exit and southbound I-77 entrance only; I-77 exit 13
		11.770	18.942	I-77 – Charleston, Charlotte	I-77 exit 15
Kershaw	Lugoff	28.250	45.464	US 601 / I-20 – St. Matthews, Camden, Florence, Columbia	Eastern terminus; I-20 exit 92
1.000 mi = 1.609 km; 1.000 km = 0.621 mi       Incomplete access

South Carolina Highway 12 Connector
Location	West Columbia
Length	0.450 mi[6] (724 m)

South Carolina Highway 12 Connector (SC 12 Conn.) follows 9th Street in West Columbia from U.S. Route 1 (US 1; Meeting Street) to US 378 (Sunset Boulevard). It is 0.450 miles (0.724 km) long and has an interchange with SC 12 at its midpoint.^[6]

The entire route is in West Columbia, Lexington County.

mi[6]	km	Destinations	Notes
0.000	0.000	US 1 (Meeting Street)	Southern terminus; 9th Street continues past intersection.
0.278– 0.280	0.447– 0.451	SC 12 – Lexington, Columbia	Interchange
0.450	0.724	US 378 (Sunset Boulevard)	Northern terminus of SC 12 Conn. and 9th Street
1.000 mi = 1.609 km; 1.000 km = 0.621 mi

South Carolina Highway 12 Spur
Location	Columbia
Length	0.334 mi[7] (538 m)

South Carolina Highway 12 Spur (SC 12 Spur) is a 0.334-mile (0.538 km) extension of Forest Drive from SC 12 to an interchange with Interstate 77 (I-77) at its exit 12. Past I-77, the road name becomes Strom Thurmond Boulevard and ends at Fort Jackson's Gate 2.^[7]

The entire route is in Columbia, Richland County.

mi[7]	km	Destinations	Notes
0.000	0.000	SC 12 (Forest Drive west / Percival Road north) – Forest Acres	Western terminus; SC 12 takes on the Forest Drive name.
0.312– 0.334	0.502– 0.538	I-77 – Charleston, Charlotte	Eastern terminus; I-77 exit 12
1.000 mi = 1.609 km; 1.000 km = 0.621 mi

• United States portal
• U.S. roads portal

• Media related to South Carolina Highway 12 at Wikimedia Commons
• SC 12 at Virginia Highways' South Carolina Highways Annex