South Carolina Highway 20
Route information
Maintained by SCDOT
Length	53.210 mi[1][2][3] (85.633 km)
Existed	1922[citation needed]–present
Major junctions
West end	SC 203 in Abbeville
Major intersections	US 76 / US 178 in Belton I-185 Toll in Golden Grove I-85 in Greenville US 25 in Greenville I-185 / US 29 in Greenville US 29 in Greenville
East end	McBee Avenue / River Street / Richardson Street in Greenville
Location
Country	United States
State	South Carolina
Counties	Abbeville, Anderson, Greenville
Highway system
South Carolina State Highway System Interstate US State Scenic
← I-20 → US 21

South Carolina Highway 20 (SC 20) is a primary state highway in the U.S. state of South Carolina. The highway connects the cities of Abbeville, Belton, Williamston and Greenville. The 53-mile-long (85 km) highway is signed as a west-east highway though it physically runs south-to-north.^[4]

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Established in 1922 as an original state highway, it traversed from the Georgia state line to SC 8 (Guess Street/Green Avenue) in Greenville; connecting McCormick, Abbeville, Due West, Honea Path, Belton, and Williamston. Between 1924-1925, SC 20 was extended north, along Green Avenue, to SC 2/SC 8 (Pendleton Street), replacing a section of SC 8; this would be the longest distance SC 20 ever traveled, reaching over 107 miles (172 km) in length.

In 1935, SC 20 was truncated at U.S. Route 29 (US 29, Anderson Highway) in Williamston; its old alignment becoming US 29. In 1936, all of SC 20 was fully paved. Around 1937, SC 20 was truncated to its current western terminus in Abbeville, its alignment to the state line replaced by SC 28. In 1956, SC 20 was rerouted between Due West and Belton, replacing SC 257 and some of SC 284; its old alignment, through Honea Path, was replaced by SC 184 and US 178. Also same year, SC 20 was extended back along its old alignment north to a rerouted US 29, just south of Greenville. In 1962, SC 20 was extended into downtown Greenville, along Grove Avenue, ending at US 25 (Augusta Road), replacing US 29 Business (US 29 Bus.). In 2000, SC 20 was extended to its current northern terminus at Falls Park Drive (formerly Camperdown Way) just shy of US 123, replacing part of US 25 Bus.^{[5][6][7][8][9][10]}

County	Location	mi[1][2][3]	km	Destinations	Notes
Abbeville	Abbeville	0.000	0.000	Washington Street east (SC 203 north) / Trinity Street west / North Main Street south	Western terminus of SC 20; southern terminus of SC 203; western terminus of Washington Street; eastern terminus of Trinity Street; North Main Street continues past terminus.
		0.180	0.290	SC 71 west (Main Street) – Lowndesville	Eastern terminus of SC 71
		1.800	2.897	Hill Road west (SC 20 Conn. west) to SC 28 – Calhoun Falls, McCormick	Eastern terminus of SC 20 Conn.; provides access to Abbeville Area Medical Center
	​	3.490	5.617	SC 201 north – Level Land, Anderson	Southern terminus of SC 201
	​	9.510	15.305	SC 185 south – Hodges	Western end of SC 185 concurrency
	Due West	11.970	19.264	SC 184 east (Main Street) – Donalds, Honea Path	Western end of SC 184 concurrency
		12.340	19.859	SC 184 west (Main Street) – Antreville	Eastern end of SC 184 concurrency
	​	15.920	25.621	SC 185 north – Anderson	Eastern end of SC 185 concurrency
Anderson	​	21.010	33.812	SC 20 Conn. west (Clinkscales Road) – Honea Path	Eastern terminus of SC 20 Conn.
	​	21.390	34.424	SC 284 south (Trail Road) – Antreville	Northern terminus of SC 284
	Craytonville	21.730	34.971	SC 20 Conn. (Clinkscales Road) – Honea Path, Anderson
	Belton	28.020	45.094	US 76 (Anderson Street) / US 178 west – Anderson	Western end of US 76/US 178 concurrency
		28.090	45.206	US 76 (Main Street) / US 178 east – Honea Path, Greenwood	Eastern end of US 76/US 178 concurreny
		28.170	45.335	SC 247 (River Street) – Ware Place	Southern terminus of SC 247
	Williamston	35.140	56.552	US 29 Conn. south (Anderson Drive) to US 29 – Anderson	Northern terminus of US 29 Conn.
	Pelzer	37.740	60.737	SC 8 (Lebby Street / Main Street) – Pelzer, West Pelzer
Greenville	Piedmont	42.410	68.252	SC 86 (Main Street) – Canterbury
	Golden Grove	45.190– 45.410	72.726– 73.080	I-185 Toll – Columbia, Greenville, Atlanta	I-185 exit 10
	Greenville	48.920– 48.950	78.729– 78.777	I-85 north – Spartanburg	Access to I-85 south via Lenhardt Road and/or White Horse Road
		49.550	79.743	US 25 (White Horse Road) – Easley
		50.019– 50.130	80.498– 80.676	I-185 / US 29 north – Greenville	Access to I-185/US 29 south via White Horse Road
		52.290	84.153	US 29 (Mills Avenue/Church Street) to I-185 / I-385
		53.210	85.633	South Main Street / River Street north to SC 124	Eastern terminus; roadway continues as River Street.
1.000 mi = 1.609 km; 1.000 km = 0.621 mi       Concurrency terminus       Incomplete access

South Carolina Highway 20 Truck
Location	Abbeville
Length	5.350 mi[11][12] (8.610 km)

South Carolina Highway 20 Truck (SC 20 Truck) is a 5.3-mile-long (8.5 km) truck route that has approximately half its path within the city limits of Abbeville. It has concurrencies with SC 71 Truck and SC 28.

It begins at an intersection with the southern terminus of SC 203 Truck (South Main Street) in the south-central part of Abbeville, which is in the southeastern part of Abbeville County. This is also the southern terminus of SC 71 Truck. SC 20 Truck and SC 71 Truck begin concurrent with SC 72. The three highways travel to the west-southwest. Immediately, they curve to the southwest and travel under a railroad bridge that carries some railroad tracks of CSX. They cross over Blue Hill Creek and curve to the south-southwest. They pass the Abbeville Area Medical Center and curve back to the southwest, before leaving the city limits of Abbeville. They pass Piedmont Technical College's Abbeville County Campus before intersecting SC 28. Here, the truck routes turn right, off of SC 72 and onto SC 28.

The three highways travel to the northwest and then pass Westwood Elementary School. They travel through rural areas of the county, passing a United States Department of Agriculture Service Center, the Pete Smith Sports Complex, and the Abbeville County Industrial Park. They cross over the aforementioned CSX rail line for a second time. They have an intersection with the eastern terminus of Old Calhoun Falls Road and the western terminus of Haigler Street, the former of which leads to the Abbeville County Law Enforcement Center, the Sheriff's and magistrates's offices, and detention center. They curve to the north-northeast and then intersect SC 71, where SC 71 Truck ends. SC 20 Truck and SC 28 curve to the northeast and intersect the northern terminus of SC 28 Conn. (North Main Street) and the western terminus of SC 20 Conn. (Hill Road). Here, SC 20 Truck ends, and SC 28 turns left, to the north-northwest.^[13]

The entire route is in Abbeville County.

Location	mi[11][12]	km	Destinations	Notes
Abbeville	0.000	0.000	SC 72 east (Greenwood Street) / SC 71 Truck begins – Greenwood South Main Street south – Cedar Springs SC 203 Truck north (South Main Street north) to SC 20 – Due West, Anderson, Abbeville Business & Historic District	Southern end of SC 71 Truck and SC 72 concurrencies; southern terminus of SC 20 Truck, SC 72 Truck, and SC 203 Truck
​	1.960	3.154	SC 28 east / SC 72 west – McCormick, Augusta, Calhoun Falls, Mount Carmel, Athens	Northern end of SC 72 concurrency; southern end of SC 28 concurrency
Abbeville	4.870	7.838	SC 71 / SC 71 Truck ends – Abbeville, Lowndesville	Northern end of SC 71 Truck concurrency
​	5.350	8.610	SC 28 west – Anderson, Antreville North Main Street (SC 28 Conn. south) to SC 71 Hill Road east (SC 20 Conn. east) – Due West	Northern end of SC 28 concurrency; northern terminus of SC 20 Truck and SC 28 Conn.; western terminus of SC 20 Conn.
1.000 mi = 1.609 km; 1.000 km = 0.621 mi       Concurrency terminus

South Carolina Highway 20 Connector
Location	Abbeville, South Carolina
Length	0.870 mi[14] (1,400 m)

South Carolina Highway 20 Connector (SC 20 Conn.) is a 0.870 miles (1.400 km) connector route, partially in the northwestern part of Abbeville. It connects SC 28 and SC 28 Conn. with SC 20. The highway is unsigned for its entire length.^[15]

The entire route is in Abbeville County.

Location	mi[14]	km	Destinations	Notes
​	0.000	0.000	North Main Street south (SC 28 Conn. south) to SC 71 – Burt-Stark Mansion SC 20 Truck south / SC 28 east – McCormick, Abbeville County Law Enforcement Center, Sheriff's and magistrates's offices, Detention center SC 28 west – Anderson, Antreville	Western terminus of SC 20 Conn.; northern terminus of SC 20 Truck and SC 28 Conn.
​	0.870	1.400	SC 20 – Due West, Abbeville, Abbeville High School	Eastern terminus
1.000 mi = 1.609 km; 1.000 km = 0.621 mi

South Carolina Highway 20 Connector
Location	Craytonville, South Carolina
Length	1.090 mi[16] (1.754 km)

South Carolina Highway 20 Connector (SC 20 Conn) is a 1.090 miles (1.754 km) connector route and is also known as Clinkscales Road. It connects SC 20 with SC 252 in Craytonville as the SC 20 mainline crosses over SC 252 on an overpass without a direct interchange. The connector route is signed.^[17]

• U.S. roads portal

• Media related to South Carolina Highway 20 at Wikimedia Commons
• SC 20 at Virginia Highways' South Carolina Highways Annex