- Source: South Carolina Highway 18
South Carolina Highway 18 (SC 18) is a 39.040-mile (62.829 km) primary state highway in the U.S. state of South Carolina. It serves to connect the cities of Union, Gaffney and Shelby, North Carolina.
Route description
SC 18 is a 39.0-mile (62.8 km) two-lane rural highway. In Gaffney, it goes through the downtown area along Fredrick Street and overlaps with the Overmountain Victory National Historic Trail.
SC 18 follows the former alignment of US 176 between Jonesville and Union. US 176 bypasses Jonesville and Union along a four lane highway to the west.
History
SC 18 was established in 1938 as a renumbering of SC 111, from U.S. Route 29 (US 29) in Gaffney, to the North Carolina state line. In 1940, SC 18 was extended south along new primary routing to SC 9 in Pacolet. In 1942, it was extended again along new primary routing to SC 56 south of Glenn Springs. In 1960-1961, SC 18 was rerouted at Gaffney to US 176/SC 9 in Jonesville, replacing part of SC 11; its old alignment became part of SC 150. In 1989, SC 18 was extended to its current western terminus at US 176/SC 215, replacing part of US 176 and all of US 176 Bus.
= South Carolina Highway 18 (1922–1938)
=The first SC 18 was an original state highway, established in 1922 between SC 20 in Abbeville northwest to Anderson and then northwest to SC 17 in Westminster. The next year, it was extended north-northeast to SC 2 in Walhalla. Two or three years later, its Westminster–Walhalla segment was eliminated, and it was routed from Westminster to the Georgia state line northwest of Long Creek. Its former path was redesignated as SC 183. In 1933, its western terminus was truncated to Westminster, to an intersection with US 76 and SC 13. Its former path was redesignated as part of US 76. In 1938, SC 18 was redesignated as part of SC 28 from Abbeville to Anderson and SC 24 from Anderson to Westminster.
Antreville alternate route
South Carolina Highway 18 Alternate (SC 18 Alt.) was an alternate route that existed in Antreville. It was established in November 1936 between SC 184 and SC 18 (now SC 28). In 1938, it was decommissioned and redesignated as SC 28 Alt. Today, it is a secondary road.
Major intersections
Special routes
= Union truck route
=South Carolina Highway 18 Truck (SC 18 Truck) is a 3.980 miles (6.405 km) truck route that travels along Duncan Bypass, in concurrency with US 176/SC 215, then reconnects with SC 18 at Connector Road.
= Union connector route
=South Carolina Highway 18 Connector (SC 18 Conn) is a 0.520-mile (0.837 km) hidden designation between SC 18 and U.S. Route 176 (US 176)/SC 215, via Harwood Heights. It serves as a direct route to Buffalo from downtown Union.
= Gaffney connector route
=South Carolina Highway 18 Connector (SC 18 Conn.) is the hidden designation of Logan Street, between SC 18 and U.S. Route 29 (US 29). However, this route is signed as mainline SC 18 throughout, despite county and state maps indicating its official routing is along Limestone Street.
= Gaffney alternate route 1
=South Carolina Highway 18 Alternate (SC 18 Alt.) was an alternate route in Gaffney. It was established in 1938 as a redesignation of SC 111 Alt. between U.S. Route 29 (US 29) and SC 18. In 1940, it was decommissioned and became part of the mainline route.
= Gaffney alternate route 2
=South Carolina Highway 18 Alternate (SC 18 Alt.) was an alternate route in Gaffney. It was established in 1940 as a redesignation of the SC 18 mainline between Limestone Street and U.S. Route 29 (US 29). In 1947, it was decommissioned and became part of SC 18 Conn. Today, it is part of SC 18 again.
See also
U.S. roads portal
References
External links
Media related to South Carolina Highway 18 at Wikimedia Commons
SC 18 at Virginia Highways' South Carolina Highways Annex
Former SC 18 Alt. at Virginia Highways' South Carolina Highways Annex
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- U.S. Route 123
- U.S. Route 176
- List of highways numbered 18
