South Carolina Highway 18 marker
South Carolina Highway 18
Route information
Maintained by SCDOT
Length39.040 mi[1][2] (62.829 km)
Existed1938[citation needed]–present
Major junctions
West end US 176 / SC 215 in Union
Major intersections
East end NC 18 at the North Carolina line
Location
CountryUnited States
StateSouth Carolina
CountiesUnion, Cherokee
Highway system
US 17 SC 19

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

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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.[3]

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.[4] In 1942, it was extended again along new primary routing to SC 56 south of Glenn Springs.[5] 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.[6][7] 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.[8]

South Carolina Highway 18 (1922–1938)

South Carolina Highway 18 marker

South Carolina Highway 18

LocationAbbeville to near Long Creek
Existed1922–1938

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

Alt plate.svg

South Carolina Highway 18 Alternate marker

South Carolina Highway 18 Alternate

LocationAntreville
Existed1936–1938

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

CountyLocationmi[1][2]kmDestinationsNotes
UnionUnion0.0000.000 SC 215 south – Chester
US 176 east – Whitmire, Newberry, Columbia

US 176 west / SC 18 Truck north / SC 215 north (Duncan Bypass) – Spartanburg, Gaffney, Airport
Western terminus of SC 18; southern terminus of SC 18 Truck; Duncan Bypass provides access to Union Medical Center
0.0700.113South Pinckney Street south (SC 215 Conn. south)Northern terminus of SC 215 Conn.; SC 215 and SC 215 Conn. share the South Pinckney Street name.
0.5700.917Union Boulevard (SC 496 west)Eastern terminus of SC 496
1.7502.816 SC 49 (Arthur Boulevard) – Union, Laurens
2.4003.862Harwood Heights west (SC 18 Conn. west) – BuffaloEastern terminus of SC 18 Conn. and Harwood Heights
3.1105.005

SC 18 Truck south (Connector Road / US 176 Conn. west) to US 176 – Whitmire, Rose Hill Plantation State Historic Site
Eastern terminus of US 176 Conn.; northern terminus of SC 18 Truck; provides access to Union Medical Center and Union County Airport
7.02011.298 SC 114 north (Bob Little Road) – GaffneySouthern terminus of SC 114
9.50015.289 SC 9 south (Jonesville Highway) – ChesterWestern end of SC 9 concurrency
Jonesville10.56016.995 SC 9 north (Main Street) – SpartanburgEastern end of SC 9 concurrency
10.98017.671Church Street west (SC 9 Conn. south)Northern terminus of SC 9 Conn.; eastern terminus of Church Street
14.57023.448 SC 114 south (Bobby Faucette Road) – UnionNorthern terminus of SC 114
Cherokee18.09029.113 SC 211 east (Gowdeysville Road) – Hickory Grove, YorkWestern end of SC 211 concurrency
Asbury18.79030.240 SC 211 west (Asbury Road)Eastern end of SC 211 concurrency
Gaffney28.74046.253 SC 105 south (Wilkinsville Highway) – Hickory GroveWestern end of SC 105 concurrency
29.06046.768 SC 105 north (Union Street)Eastern end of SC 105 concurrency
30.22048.634
Limestone Street / SC 11 begins
Western end of SC 11 concurrency
30.41048.940 US 29 (Granard Street) – Shelby, Gastonia, Spartanburg, Greenville
30.58049.214 SC 11 south (West Fredrick Street) – Chesnee, SpartanburgEastern end of SC 11 concurrency
30.65049.326 SC 150 (Holland Street south / Providence Road north)
32.50052.304
Pleasant School Road to I-85 south – Spartanburg
33.82054.428 SC 329 south (Victory Trail Road) – BlacksburgNorthern terminus of SC 329
33.880–
34.007
54.525–
54.729
I-85 / Wilcox Avenue – Spartanburg, CharlotteI-85 exit 96; access to I-85 south is via Wilcox Avenue.
39.04062.829 NC 18 north – ShelbyContinuation beyond North Carolina state line
1.000 mi = 1.609 km; 1.000 km = 0.621 mi

Special routes

Union truck route

Truck plate South Carolina.svg

South Carolina Highway 18 Truck marker

South Carolina Highway 18 Truck

LocationUnion, South Carolina
Length3.980 mi[9][10] (6.405 km)

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.[11]

Union connector route

Connector plate South Carolina.svg

South Carolina Highway 18 Connector marker

South Carolina Highway 18 Connector

LocationUnion, South Carolina
Length0.520 mi[12] (837 m)

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.[13]

Gaffney connector route

Connector plate South Carolina.svg

South Carolina Highway 18 Connector marker

South Carolina Highway 18 Connector

LocationGaffney, South Carolina
Length2.310 mi[14] (3.718 km)

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.[15]

Gaffney alternate route 1

Alt plate.svg

South Carolina Highway 18 Alternate marker

South Carolina Highway 18 Alternate

LocationGaffney
Existed1938–1940

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

Alt plate.svg

South Carolina Highway 18 Alternate marker

South Carolina Highway 18 Alternate

LocationGaffney
Existed1940–1947

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

References

  1. ^ a b "Highway Logmile Report". South Carolina Department of Transportation. Retrieved November 28, 2020.
  2. ^ a b "Highway Logmile Report". South Carolina Department of Transportation. Retrieved November 28, 2020.
  3. ^ Google (August 16, 2015). "South Carolina Highway 18" (Map). Google Maps. Google. Retrieved August 16, 2015.
  4. ^ General Highway Map, Cherokee County, South Carolina (PDF) (Map). Cartography by SCDOT. South Carolina Department of Transportation. 1940. Retrieved August 17, 2015.
  5. ^ General Highway Map, Spartanburg County, South Carolina (PDF) (Map). Cartography by SCDOT. South Carolina Department of Transportation. 1957. Retrieved August 17, 2015.
  6. ^ General Highway Map, Cherokee County, South Carolina (PDF) (Map). Cartography by SCDOT. South Carolina Department of Transportation. 1963. Retrieved August 17, 2015.
  7. ^ General Highway Map, Union County, South Carolina (PDF) (Map). Cartography by SCDOT. South Carolina Department of Transportation. 1963. Retrieved August 17, 2015.
  8. ^ General Highway Map, Union County, South Carolina (PDF) (Map). Cartography by SCDOT. South Carolina Department of Transportation. 1994. Retrieved August 17, 2015.
  9. ^ "Highway Logmile Report". South Carolina Department of Transportation. Retrieved November 28, 2020.
  10. ^ "Highway Logmile Report". South Carolina Department of Transportation. Retrieved November 28, 2020.
  11. ^ Google (August 16, 2015). "South Carolina Highway 18 Truck (Union)" (Map). Google Maps. Google. Retrieved August 16, 2015.
  12. ^ "Highway Logmile Report". South Carolina Department of Transportation. Retrieved November 17, 2020.
  13. ^ General Highway System, City of Union, Union County (PDF) (Map). South Carolina Department of Transportation. October 2010. Retrieved August 22, 2015.
  14. ^ "Highway Logmile Report". South Carolina Department of Transportation. Retrieved November 17, 2020.
  15. ^ General Highway System, Town of Gaffney, Cherokee County (PDF) (Map). South Carolina Department of Transportation. July 2009. Retrieved August 22, 2015.