U.S. Route 78 in South Carolina

U.S. Route 78
	US 78 highlighted in red
Route information
	Maintained by SCDOT
Length	141.0 mi[1] (226.9 km)
Existed	1927–present
Major junctions
West end	US 1 / US 25 / US 78 / US 278 / SR 10 / SR 121 at the Georgia line near North Augusta
	US 25 / SC 121 in North Augusta; I-520 in North Augusta; US 278 / SC 125 / SC 421 in Clearwater; US 1 in Aiken; US 301 / US 601 in Bamberg; I-95 in St. George; I-26 near Ladson; US 52 in North Charleston; I-526 in North Charleston;
East end	Line Street / King Street in Charleston
Location
Counties	Aiken, Barnwell, Bamberg, Orangeburg, Dorchester, Charleston
Highway system

U.S. Route 78 (US 78) is a U.S. highway that travels from Memphis, Tennessee to Charleston, South Carolina. In the U.S. state of South Carolina, it runs from the Savannah River at North Augusta to its eastern terminus in Charleston; connecting the cities of Aiken, Summerville, and North Charleston.

Route description

US 78 enters South Carolina by crossing the Savannah River in North Augusta; sharing concurrences with US 1, US 25, US 278 and SC 121. In the immediate 2-mile (3.2 km) area, it sheds most concurrences, sharing only with US 1 towards Aiken; it also connects with I-520, which is a partial beltway around the Augusta metropolitan area. In Aiken, it travels through the downtown area, where US 1 splits north towards Columbia. West of Williston is SC 781, which connects back with US 278; the routing allows travelers to bypass Aiken all together between Williston and Augusta.

Traveling in a southeasterly direction, it goes through the cities and towns of Williston, Blackville, Denmark, Bamberg, Branchville and St. George, where connects with I-95. Continuing east, it passes through Dorchester and begins to parallel with I-26 in a southeasterly direction through Summerville. It crosses into Charleston County at Lincolnville, where the highway skirts just inches south of the Berkeley County line. In North Charleston, US 78 shares a concurrency with US 52, as it connects with I-526. Entering Charleston, it splits with US 52 and goes south along King Street; its eastern terminus at Line Street, a block away from US 52's eastern/southern terminus and nearby to I-26/US 17 interchange.

US 78 is a predominantly two-lane rural highway connecting much of the Lowcountry. Wider sections (four-lanes or more) are found between North Augusta-Aiken, St. George and North Charleston. Though it provides the most direct route between Augusta and Charleston (using US 278/SC 781 to bypass Aiken), it is not a busy route because of the many cities and towns it goes through.

History

Established in 1927 as an original US highway, it traveled closely as it does today; from North Augusta to Charleston, connecting the cities and towns of Aiken, Bamberg, St. George, and North Charleston.

By 1931, US 78 was rerouted north of Summerville and Lincolnville, leaving Richardson Avenue/Lincoln Avenue. Around 1939, US 78 was realigned from Meeting Street to Rivers Street, south of Durant Avenue in the Charleston area. Also in 1939, US 78 was fully paved in the state, its last unpaved section was between St. George and US 178. By 1952, US 78 was placed on new four-lane highway bypassing Clearwater, Burnettown, and Gloverville; also by same year a new bridge was constructed over the Savannah River, leaving Fifth Street Bridge. By 1967, US 78 was adjusted to bypass south of mainstreet Blackville, leaving a secondary road, but was later upgraded as a connector (signed as a business loop).[2][3]

Major intersections

County	Location	mi[1]	km	Destinations	Notes
Aiken	North Augusta	0.0	0.0	US 1 south / US 25 south / US 78 west / US 278 west / SR 10 west / SR 121 south (Gordon Highway) – Augusta	Continuation from Georgia over the Savannah River
		0.2	0.32	5th Street Bridge / River North Drive	Interchange
		0.7	1.1	US 25 north / SC 121 north – North Augusta, Edgefield	North end of US 25/SC 121 concurrency
		1.4	2.3	I-520 (Palmetto Parkway) – Augusta, Columbia, Atlanta	I-520 exit 17
	Clearwater	2.3	3.7	US 278 east / SC 125 (Atomic Road) / SC 421 north (Augusta Road) – Beech Island, Savannah River Site, Clearwater	East end of US 278 concurrency; southern terminus of SC 421
	Burnettown	4.0	6.4	SC 126 (Belvedere–Clearwater Road) – Belvedere
	Graniteville	10.2	16.4	SC 191 (Main Street) – Graniteville, Vaucluse, Warrenville
	Aiken	12.2	19.6	SC 118 (Robert M Bell Parkway / Hitchcock Parkway) to I-20 / SC 302	Southern terminus of US 1 Truck; western terminus of US 78 Truck; to USC Aiken
		12.4	20.0	SC 421 south (Augusta Road)	Northern terminus of SC 421
		15.5	24.9	SC 19 (Laurens Street) – Eureka, Edgefield
		15.7	25.3	SC 19 Conn. (Chesterfield Street) – Savannah River Site	Signed also as SC 19
		15.8	25.4	US 1 north (York Street NE)	North end of US 1 concurrency
		18.1	29.1	SC 4 east (Wagener Road) to SC 302	Western terminus of SC 4
		18.4	29.6	SC 118 / SC 302 (East Pine Log Road) to I-20	Eastern terminus of US 78 Truck
		34.2	55.0	SC 781 west (Tinker Creek Road)	Eastern terminus of SC 781
Barnwell	Williston	37.2	59.9	SC 39 south (Rosemary Street/Dunbarton Road)	South end of SC 39 concurrency
	Williston	37.5	60.4	SC 39 north (Elko Street/Springfield Road) – Springfield	North end of SC 39 concurrency
	Elko	40.3	64.9	SC 37 (Bay Street) – Barnwell, Springfield
	Blackville	46.7	75.2	US 78 Bus. east (Walker Street)	Western terminus of US 78 Bus.
		46.8	75.3	SC 3 (Solomon Blatt Avenue) – Barnwell
		46.9	75.5	SC 304 south (Lartigue Street) – Hilda	Northern terminus of SC 304
		47.3	76.1	US 78 Bus. west (Main Street)	Eastern terminus of US 78 Bus.
Bamberg	Denmark	54.9	88.4	US 321 / SC 70 (Palmetto Avenue) – Orangeburg, Barnwell
	Bamberg	61.5	99.0	US 301 / US 601 – Orangeburg, Allendale, Ehrhardt
		71.3	114.7	SC 61 south (Edisto River Road)	Northern terminus of SC 61
Orangeburg	Branchville	75.8	122.0	US 21 south (Freedom Road) – Smoaks, Walterboro, Savannah	South end of US 21 concurrency
Orangeburg	Branchville	76.0	122.3	US 21 north (Freedom Road) – Orangeburg, Columbia	North end of US 21 concurrency
Dorchester	St. George	88.8	142.9	I-95 – Savannah, Florence	I-95 exit 77
	St. George	90.9	146.3	US 15 (Parler Avenue) – Walterboro, Santee
		104.7	168.5	US 178 west (East Main Street) – Harleyville	Eastern terminus of US 178
		107.5	173.0	SC 27 north (Ridgeville Road) – Holly Hill	West end of SC 27 concurrency
		107.9	173.6	SC 27 south (Ridgeville Road) – Ridgeville	East end of SC 27 concurrency
	Summerville	118.3	190.4	US 17 Alt. (North Main Street) – Walterboro, Moncks Corner
	Summerville	118.7	191.0	SC 165 (Berlin G. Myers Parkway) – Ravenel	Also carries US 17 Alt. Trk.
Charleston	North Charleston	124.7	200.7	I-26 – Columbia, Charleston	I-26 exit 205
		126.8	204.1	US 52 west – Goose Creek, Moncks Corner	West end of US 52 concurrency; interchange
		128.2	206.3	I-26 east – Charleston	I-26 exit 209A; no access to I-26 west
		132.7	213.6	I-526 (Mark Clark Expressway) – Savannah, Mount Pleasant	I-526 exit 18
		135.7	218.4	SC 642 west (Dorchester Road)	Eastern terminus of SC 642
		135.9	218.7	SC 7 south (Cosgrove Avenue)	Northern terminus of SC 7
		136.4	219.5	US 52 east (Carner Avenue)	East end of US 52 concurrency
	Charleston	141.0	226.9	Line Street to US 17 north	No access from US 78 (King Street) or Line Street eastbound to westbound Line Street; eastern terminus
1.000 mi = 1.609 km; 1.000 km = 0.621 mi Concurrency terminus Incomplete access

References

Google (May 23, 2013). "Route of US 78 in South Carolina" (Map). Google Maps. Google. Retrieved May 23, 2013.
General Highway Map, Barnwell County, South Carolina (PDF) (Map). Cartography by SCDOT. South Carolina Department of Transportation. 1967. Retrieved April 11, 2014.
General Highway Map, Barnwell County, South Carolina (PDF) (Map). Cartography by SCDOT. South Carolina Department of Transportation. 1987. Retrieved April 11, 2014.

External links

Media related to U.S. Route 78 in South Carolina at Wikimedia Commons
End of US highway 78 on USends.com
Mapmikey's South Carolina Highways Page: US 78

U.S. Route 78
Previous state: Georgia	South Carolina	Next state: Terminus

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[Google-1] Google (May 23, 2013). "Route of US 78 in South Carolina" (Map). Google Maps. Google. Retrieved May 23, 2013.

[Bar1967-2] General Highway Map, Barnwell County, South Carolina (PDF) (Map). Cartography by SCDOT. South Carolina Department of Transportation. 1967. Retrieved April 11, 2014.

[Bar1987-3] General Highway Map, Barnwell County, South Carolina (PDF) (Map). Cartography by SCDOT. South Carolina Department of Transportation. 1987. Retrieved April 11, 2014.