U.S. Route 178

U.S. Route 178
US 178 highlighted in red; US 178 Business highlighted in blue
Route information
Auxiliary route of US 78
Length	240.49 mi[1][2] (387.03 km)
Major junctions
North end	US 64 near Rosman, NC
Major intersections	I-85 near Anderson, SC US 76 in Anderson, SC US 29 in Anderson, SC US 25 / US 221 in Greenwood, SC US 378 in Saluda, SC US 1 in Batesburg-Leesville, SC I-20 near Batesburg-Leesville, SC US 21 / US 301 in Orangeburg, SC I-95 near Bowman, SC US 15 near St. George, SC
East end	US 78 near Ridgeville, SC
Location
Country	United States
States	North Carolina, South Carolina
Counties	NC: Transylvania SC: Pickens, Anderson, Abbeville, Greenwood, Saluda, Lexington, Orangeburg, Dorchester
Highway system
United States Numbered Highway System List Special Divided
← SC 177 SC → SC 179 ← NC 177 NC → NC 179

U.S. Highway 178 (US 178) is a spur of U.S. Highway 78. It currently runs for 240.49 miles (387.03 km) from Dorchester, South Carolina, at U.S. Highway 78 to Rosman, North Carolina, at U.S. Highway 64. It passes through the states of South Carolina and North Carolina. It goes through the cities of Pickens, Anderson, North, Orangeburg, Harleyville, South Carolina and Bowman, South Carolina.

US 178 has a length of 6.35 miles (10.22 km) in North Carolina and spans 234.14 miles (376.81 km) in South Carolina.^[1][2] The U.S. Highway is a part of the National Highway System from I-85 near Anderson to US 378 in Saluda.^[3]

US 178 begins at an intersection with US 64 just west of the town of Rosman within Pisgah National Forest in southern Transylvania County, North Carolina. The two-lane road, which is named Pickens Highway, heads east into the town parallel to the French Broad River. US 178 turns south onto Chestnut Street, crosses the river to leave the town, and turns east again to parallel the river. The highway veers away from the mainstem of the French Broad to follow its Middle Fork south then east, then turns south and climbs to the Eastern Continental Divide at Eastatoe Gap between Burnt Mountain and Indian Camp Mountain.^[4][5] US 178 enters Pickens County, South Carolina, and its name changes to Moorefield Memorial Highway shortly after it begins its curvaceous and steep descent along Eastatoe Creek to Rocky Bottom. There, the U.S. Highway meets the western end of F. Van Clayton Memorial Highway, which leads to the highest point in South Carolina, Sassafras Mountain.^[4][6]

US 178 crosses another ridge into the valley of Reedy Cove Creek, then climbs again to Beasley Gap between Rich Mountain and Horse Mountain. From there, the highway has a sharp and curvy descent to the valley of the Oolenoy River, which it follows east to near its junction with SC 11 (Cherokee Foothills Scenic Highway) at the hamlet of Holly Springs. US 178 curves south at its intersection with SC 288 (Table Rock Road), has a short climb to Mosley Gap between Mosley Mountain and Walnut Cove Mountain, and follows several different creeks through the foothills, which the highway exits as it enters the town of Pickens. The highway expands to four lanes and enters the town on Ann Street and has a very brief concurrency with SC 183 (Main Street) in the center of town; SC 183 connects US 178 with SC 8. US 178 leaves the town along Pendleton Street and drops to two lanes again south of town. The highway passes Pickens County Airport on its way to Liberty. The U.S. Highway, which enters the town along Pickens Drive, intersects SC 93 (Main Street) in the center of the town and has a grade crossing of Norfolk Southern Railway's Greenville District as it leaves town along Anderson Drive. Just south of the town limits, US 178 has a diamond interchange with US 123 (Calhoun Memorial Highway).^[4][6]

US 178 meets the southern end of SC 135 shortly before entering Anderson County, where the highway becomes Liberty Highway and intersects SC 88 (Old Greenville Highway). The highway crosses the Six and Twenty Creek arm of Lake Hartwell and temporarily expands to four lanes around its intersection with US 176 Connector, which feeds into SC 28's western bypass of Anderson, Pearman Dairy Road. US 178 gradually approaches US 76 and SC 28 Business (Clemson Boulevard) as it enters a commercial area before meeting and joining those highways at an oblique intersection. The three highways follow an undivided highway with three southbound lanes, two northbound lanes, and a center turn lane into the city of Anderson, where the road's name changes to Main Street and passes to the east of the Civic Center of Anderson. South of Anderson Mall, SC 28 Business continues on Main Street while US 178 and US 76 veer onto four-lane North Avenue, which parallels Main Street on the west. Shortly after North Avenue splits into one-way carriageways split by a wide parked median, the avenue veers east toward Main Street and the U.S. Highways continue along Club Drive and Park Drive, which have several sports field in their wide median.

US 178 and US 76 enter downtown Anderson along four-lane Murray Avenue, which runs one block to the west of Main Street.

US 178 is signed north–south in North Carolina and east–west in South Carolina; which is why it is listed as having a northern and eastern terminus.

NCDOT plans to modernize a 5.85-mile (9.41 km) section of US 178, between Rosman and the South Carolina state line. The project includes widening lanes to 12 feet (3.7 m), from the current 9 feet (2.7 m), adjust its alignment and add a climbing lane. At an estimated cost of $14.1 million, it is currently unfunded.^[7]

State	County	Location	mi [1][2]	km	Destinations	Notes
North Carolina	Transylvania	Rosman	0.00	0.00	US 64 – Brevard, Cashiers	Northern terminus
			6.35 0.00	10.22 0.00	North Carolina–South Carolina state line
South Carolina	Pickens	​	10.46	16.83	SC 11 (Cherokee Foothills Scenic Highway) – Cleveland, Salem
		​	10.69	17.20	SC 288 east (Table Rock Road) – Pumpkintown	Western terminus of SC 298
		Pickens	19.14	30.80	SC 183 west (Main Street) – Walhalla	Western end of SC 183 concurrency
			19.16	30.84	SC 183 east (Main Street) to SC 8 – Greenville, Easley, Pumpkintown	Eastern end of SC 183 concurrency
		Liberty	26.02	41.88	SC 93 (Main Street) – Easley, Norris
			27.57	44.37	US 123 (Calhoun Memorial Highway) – Greenville, Clemson	Diamond interchange
		​	30.17	48.55	SC 135 north (Anderson Highway) – Easley	Southern terminus of SC 135
	Anderson	​	33.14	53.33	SC 88 (Old Greenville Highway) – Pendleton, Powdersville
		Northlake	43.15	69.44	I-85 – Greenville, Atlanta	I-85 exit 21
			44.49	71.60	SC 28 Truck south (US 176 Conn. west) to SC 28 – Starr, Abbeville	Eastern terminus of US 178 Conn.; northern terminus of SC 28 Truck
		Anderson	45.28	72.87	US 76 west / SC 28 Bus. north (Clemson Boulevard) – Clemson	Western end of US 76 and SC 28 Bus. concurrencies
			46.52	74.87	SC 28 Bus. south (Main Street)	Eastern end of SC 28 Bus. concurrency
			48.80	78.54	US 29 Bus. / SC 81 north (Greenville Street) – Greenville	Western end of US 29 Bus./SC 81 concurrency
			49.18	79.15	SC 24 west (Whitner Street) – Westminster	Eastern terminus of SC 24
			49.43	79.55	US 29 Bus. / SC 81 south (Murray Avenue) – Homeland Park	Eastern end of US 29 Bus./SC 81 concurrency
			49.51	79.68	SC 28 Bus. – Main Street
			50.85	81.84	US 29 south (Shockley Ferry Road) – Homeland Park	Western end of US 29 concurrency
			51.43	82.77	US 29 north – Greenville	Eastern end of US 29 concurrency
		​	54.78	88.16	SC 252 east (Honea Path Highway) – Honea Path	Eastbound exit and westbound entrance
		​	58.01	93.36	SC 413 south – Iva	Northern terminus of SC 413
		Belton	60.45	97.28	SC 20 south (Brown Avenue) – Due West	Western end of SC 20 concurrency
			60.52	97.40	SC 20 north (Main Street) to SC 247 – Williamston, Ware Place	Eastern end of SC 20 concurrency
		Honea Path	68.73	110.61	SC 252 west (Greer Street) – Anderson	Western end of SC 252 concurrency
			68.79	110.71	US 76 / SC 252 east (Greer Street) – Laurens, Ware Shoals	Eastern end of US 76 and SC 252 concurrencies
	Abbeville	Donalds	74.39	119.72	SC 184 east (East Main Street) – Ware Shoals	Western end of SC 184 concurrency
			74.44	119.80	SC 184 west (West Main Street) – Due West	Eastern end of SC 184 concurrency
	Greenwood	​	77.42	124.60	SC 420 east – Ware Shoals	Western terminus of SC 420
		Hodges	83.57	134.49	SC 246 east (Emerson Street) – Cokesbury	Western terminus of SC 246
			84.14	135.41	SC 185 west (Main Street) – Due West	Eastern terminus of SC 185
			84.18	135.47	US 25 north – Greenville	Western end of US 25 concurrency
		Greenwood	90.23	145.21	US 25 Bus. south / US 178 Bus. east (Montague Avenue) / SC 72 west – Abbeville	Western end of SC 72 concurrency; northern terminus of US 25 Bus.; western terminus of US 178 Bus.
			90.87	146.24	SC 254 (Cokesbury Road / Grace Street) – Cokesbury
			92.39	148.69	US 221 north / SC 72 east / SC 72 Bus. west (Reynolds Avenue) – Laurens, Clinton	Eastern end of SC 72 concurrency; western end of US 221 concurrency; eastern terminus of SC 72 Bus.
			95.89	154.32	SC 34 (Ninety Six Highway / Main Street West) – Ninety Six	Partial cloverleaf interchange
			97.12	156.30	US 221 south / US 25 Bus. north / US 178 Bus. west (Main Street north) – McCormick	Eastern end of US 221 concurrency; southern terminus of US 25 Bus.; eastern terminus of US 178 Bus.
		​	98.29	158.18	SC 225 north – Abbeville	Southern terminus of SC 225
		​	98.83	159.05	SC 67 south (Callison Highway)	Northern terminus of SC 67
		​	99.97	160.89	US 25 south – Edgefield	Eastern end of US 25 concurrency
		​	104.41	168.03	SC 248 north – Ninety Six	Southern terminus of SC 248
		​	110.65	178.07	SC 246 north – Ninety Six	Southern terminus of SC 246
	Saluda	Saluda	121.93	196.23	SC 39 north (Jefferson Street) – Cross Hill	Western end of SC 39 concurrency
			122.02	196.37	SC 121 north (North Main Street north) / Travis Avenue east (US 178 Conn. east) to US 378 / SC 194 east – Newberry, Columbia	Western end of SC 121 concurrency; western terminus of US 178 Conn.
			122.37	196.94	US 378 (Church Street) – McCormick
			122.57	197.26	SC 121 south (Main Street) – Johnston	Eastern end of SC 121 concurrency
			124.04	199.62	SC 39 south (Ridge Spring Highway) – Ridge Spring	Eastern end of SC 39 concurrency
	Lexington	Batesburg-Leesville	137.50	221.28	SC 23 west (Church Street) – Monetta	Western end of SC 23 concurrency
			137.61	221.46	SC 23 east (Church Street) / SC 391 north (Line Street) – Lexington, Prosperity	Eastern end of SC 23 concurrency; western end of SC 391 concurrency
			137.89	221.91	US 1 (Columbia Avenue) – Columbia, Aiken
			138.27	222.52	SC 391 south (Willis Street) – Wagener	Eastern end of SC 391 concurrency
			140.78	226.56	SC 245 north (Lee Street)	Southern terminus of SC 245
		​	146.13	235.17	I-20 – Columbia, Augusta	I-20 exit 39
		​	152.72	245.78	SC 113 south (Wagener Highway) – Wagener	Northern terminus of SC 113
		Pelion	160.38	258.11	SC 302 (Pine Street) – South Congaree, Wagener
		​	168.93	271.87	SC 3 (Whetstone Road) – Swansea, Springfield
	Orangeburg	North	174.03	280.07	SC 394 west (Salley Road) – Salley	Eastern terminus of SC 394
			174.80	281.31	US 321 (Main Street) – Woodford, Livingston, Neeses
		​	178.24	286.85	SC 172 east (Bull Swamp Road) to SC 692 north – St. Matthews, Swansea	Western terminus of SC 172
		Orangeburg	190.67	306.85	US 178 Bus. east (Broughton Street)	Western terminus of US 178 Bus.
			191.75	308.59	US 21 north / US 21 Bus. south (Columbia Road) – Columbia	Western end of US 21 concurrency; northern terminus of US 21 Bus.
			192.84	310.35	US 601 (Magnolia Street) – St. Matthews, Bamberg
			193.69	311.71	SC 33 (Russell Street) – Cameron
			194.79	313.48	US 301 (Five Chop Road) – Santee, Bamberg
			196.11	315.61	US 21 south (Chestnut Street) / US 178 Bus. west (Charleston Highway) to US 21 Bus. / SC 4 – Rowesville, Neeses	Eastern end of US 21 concurrency; eastern terminus of US 178 Bus.
		Bowman	209.55	337.24	SC 210 south (Bowman Branch Highway) – Branchville	Western end of SC 210 concurrency
209.67			337.43	SC 210 north (Vance Road) – Vance	Eastern end of SC 210 concurrency
Dorchester	​	218.29	351.30	I-95 – Florence, Savannah	I-95 exit 82
	​	220.95	355.58	US 15 – St. George, Santee
	Harleyville	226.11	363.89	SC 453 north (Judge Street) – Holly Hill	Southern terminus of SC 453
	​	234.14	376.81	US 78 – Summerville, St. George	Eastern terminus
1.000 mi = 1.609 km; 1.000 km = 0.621 mi       Concurrency terminus       Incomplete access

U.S. Highway 178 Connector
Location	Northlake, South Carolina
Length	0.180 mi[8] (290 m)

U.S. Route 178 Connector (US 178 Conn.) is a 0.180-mile (0.290 km) connector route of US 178 entirely within the southern part of Northlake. It connects US 76, South Carolina Highway 28 (SC 28), and SC 28 Business (SC 28 Bus.) with US 178 (Liberty Highway).^[9] It is an unsigned highway.^[10]

U.S. Highway 178 Business
Location	Greenwood, South Carolina
Length	4.840 mi[11] (7.789 km)

U.S. Route 178 Business (US 178 Bus.) is a 4.840-mile (7.789 km) business route of US 178 in Greenwood. Nearly the entire path is within the city limits of Greenwood. It is completely concurrent with US 25 Bus.^[6][12]

U.S. Highway 178 Connector
Location	Saluda, South Carolina
Length	0.190 mi[13] (306 m)

U.S. Route 178 Connector (US 178 Conn.) is a 0.190-mile (0.306 km) connector route of US 178 that is entirely within the city limits of Saluda. It serves to connect US 178, South Carolina Highway 39 (SC 39), and SC 121 with US 378 and SC 194.^[14] It is known as Travis Avenue and is an unsigned highway.^[15]

U.S. Highway 178 Business
Location	Orangeburg, South Carolina
Length	4.400 mi[16] (7.081 km)

U.S. Route 178 Business (US 178 Bus.) is a 4.400-mile (7.081 km) business route of US 178 in the western part of the city of Orangeburg.^[6][17]

• List of United States Numbered Highways

• The Highways of South Carolina: US 178
• Endpoints of U.S. Highway 178