South Carolina Highway 170
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| Route information | ||||
| Maintained by SCDOT | ||||
| Length: | 35.2 mi (56.6 km) | |||
| Existed: | 1931 – present | |||
| Major junctions | ||||
| West end: |
 SR 25 at Ga. state line |
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 US 17 near Limehouse US 278 in Bluffton US 21 in Beaufort
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| East end: |
 US 21 Bus. in Beaufort
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| Location | ||||
| Counties: | Jasper, Beaufort | |||
| Highway system | ||||
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| Location: | Levy, South Carolina |
| Length: | 6.1 mi (9.8 km) |
| Existed: | 1972–2010 |
South Carolina Highway 170 (SC 170) is a 35.1-mile (56.5 km) state highway, connecting northern Beaufort County with southern portions of Beaufort and Jasper counties. Due to increased population growth in both areas, the majority of the road is four lanes wide, with certain areas retaining the original two lane configuration.
Beginning at a bridge over the Savannah River, the route runs through a densely wooded area and crosses nearly two miles of marshes within the Savannah National Wildlife Refuge. At the site of a former truck weigh station, the route merges with US 17 and SC 170 is co-signed with US 17 for approximately two miles on a four lane, divided highway configuration. In Limehouse the highway branches off from US 17 to the east after running under a railroad bridge, and flanks the east side of that route momentarily until a fork on the road with Limehouse Road (which includes Levy Road slicing through both) where it curves onto Freedom Parkway. Freedom Parkway makes a slight curve to the right before terminating at SC 315 (formerly SC 170 Alternate), and SC 170 makes a left turn at Oaktie Highway. SC 170 rejoins its previous trajectory after the western terminus of the overlap with SC 46. SC 170 and SC 46 are co-signed for 2.7-mile (4.3 km) crossing the Beaufort County Line in the process where it becomes May River Road until reaching a traffic circle in Pritchardville. SC 46 continues to the east while SC 170 turns north onto four-lane Oaktie Highway.
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Wikipedia