South Carolina Highway 642
South Carolina Highway 642 (SC 642, also known as Dorchester Road), is a 19.292-mile (31.047 km) state highway in the southeastern part of the U.S. state of South Carolina. It travels within the Summerville and North Charleston areas.
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| Dorchester Road | ||||
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| Route information | ||||
| Maintained by SCDOT | ||||
| Length | 19.292 mi[1][2] (31.047 km) | |||
| Existed | 1939–present | |||
| Major junctions | ||||
| West end |   US 17 Alt. near Summerville | |||
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| East end |   US 52 / US 78 in North Charleston | |||
| Location | ||||
| Counties | Dorchester, Charleston | |||
| Highway system | ||||
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Route description
SR 642 runs for 19.3 miles (31.1 km) from U.S. Route 17 Alternate (US 17 Alt.) southwest of Summerville to US 52/US 78 in North Charleston.[3] Dorchester Road is a heavily congested highway during morning and evening traffic periods.
History
Current plans call for widening of the road from Summerville to US 17 Alternate. This has been completed.[4]
Major intersections
| County | Location | mi[1][2] | km | Destinations | Notes |
|---|---|---|---|---|---|
| Dorchester | | 0.000 | 0.000 | US 17 Alt. (US 17 Alt. Truck begins) – Walterboro, Bamberg, Summerville | Western end of US 17 Alt. Truck concurrency; western terminus of SC 642; southern terminus of US 17 Alt. Truck |
| | 2.832 | 4.558 |  SC 165 (Bacons Bridge Road / US 17 Alt. Truck north) – Summerville, Charleston | Eastern end of US 17 Alt. Truck concurrency | |
| Charleston | North Charleston | 16.542– 16.602 | 26.622– 26.718 |  I-526 (Mark Clark Expressway) – Mt. Pleasant, Savannah, GA | I-526 exit 15 |
| 18.602 | 29.937 |  I-26 – Columbia, Charleston | I-26 exit 215 | ||
| 19.292 | 31.047 | US 52 / US 78 (Rivers Avenue) | Eastern terminus | ||
| 1.000 mi = 1.609 km; 1.000 km = 0.621 mi | |||||
See also
United States portal
U.S. roads portal
References
- "Highway Logmile Report". South Carolina Department of Transportation. Retrieved December 29, 2020.
- "Highway Logmile Report". South Carolina Department of Transportation. Retrieved December 29, 2020.
- Google (August 29, 2014). "South Carolina Highway 642" (Map). Google Maps. Google. Retrieved August 29, 2014.
- "Project #3 Dorchester Road Improvements" (Press release). Dorchester County Penny Sales Tax Transportation Authority. Retrieved August 3, 2013.
External links
Media related to South Carolina Highway 642 at Wikimedia Commons- SC 642 at Virginia Highways' South Carolina Highways Annex
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