The Highways of South Carolina SC 120 to 129 
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SC 120
From: SC 261 Pinewood (Sumter County)
To: US 76US 378 Sumter (Sumter County).
Total Length: 17.5 miles  
ROUTE LOG
SC 261: 0 - 0
SC 763 WB: 14.2 - 14.2
SC 763 EB: 0.7 - 14.9
US 76, US 378: 2.6 - 17.5
Creation: Created in 1941 or 1942 as new primary routing. Originally ran from US 76 south towards Pinewood, but before Pinewood, veered southeast across into Clarendon County, ending 3 miles south of SC 158 (current S-14-26) Belser Crossroads. There was a small gap between SC 261 and the Clarendon-Sumter Line. SC 120 was 28 miles long.
Adjustments: In 1948, SC 120 was rerouted to end at SC 261 Pinewood, replacing SC 538. The old route into Clarendon became S-43-29 and S-14-41. Also, SC 120 north was truncated to SC 763.
1957 or 1958, SC 120 was re-extended north to US 76-378.
Improvements: SC 120 was paved between S-43-29 and SC 763 at designation; all parts of SC 120 were paved from 1948 forward.
The 2005 Official Map shows no multilane sections,
Comment: SC 120 skirts the east edge of Manchester State Forest.
If the new bridge over Lake Marion is built between Lone Star and Rimini, will SC 120 be renumbered or extended????
SC 121
From: US 21US 21BUS Rock Hill (York County)
To: Georgia State Line at North Augusta (Aiken County). The route continues as GA 121, then FL 121 to end at US 19-98 Lebanon FL.
Total Length: 135.1 miles (SC + GA + FL 121 = 473 miles)  
ROUTE LOG
US 21 NB, US 21 Bus: 0 - 0
SC 122: 2.7 - 2.7
US 21 SB: 1.5 - 4.2
US 21 Bus SB: 0.1 - 4.3
US 21 Bus NB, SC 72 BEGIN: 0.8 - 5.1
SC 72 Bus, SC 901: 2.2 - 7.3
SC 324: 4.2 - 11.5
Chester-York Line: 3.1 - 14.6
SC 909 WB: 3.6 - 18.2
SC 909 EB: 0.1 - 18.3
SC 72 Bus, SC 97 NB, SC 121 Bus: 5.3 - 23.6
SC 9 EB, SC 9 Bus: 1.1 - 24.7
US 321 SB, US 321 Bus, SC 97 SB: 1.5 - 26.2
US 321 NB, SC 9 WB, SC 72 Bus, SC 121 Bus: 1.9 - 28.1
SC 215 SB: 12.6 - 40.7
Union-Chester Line: 1.2 - 41.9
SC 215 NB: 2.7 - 44.6
US 176 WB: 9.4 - 54
Newberry-Union Line: 1 - 55
SC 72 WB: 0.5 - 55.5
US 176 EB: 7.3 - 62.8
I-26 (exit 72): 5.9 - 68.7
US 76, US 76 Bus BEGIN: 1.8 - 70.5
US 76 Bus EB: 0.6 - 71.1
SC 395: 0.8 - 71.9
SC 34 EB: 2.8 - 74.7
SC 34 WB: 4.6 - 79.3
Saluda-Newberry Line: 2.5 - 81.8
SC 194: 12 - 93.8
US 178 WB, SC 39 NB: 0.2 - 94
US 378: 0.2 - 94.2
US 178 EB, SC 39 SB: 0.2 - 94.4
SC 193: 4.5 - 98.9
Edgefield-Saluda Line: 6 - 104.9
SC 23: 2.1 - 107
SC 191: 1.3 - 108.3
US 25 NB, SC 19: 6.7 - 115
Aiken-Edgefield Line: 11.4 - 126.4
I-20 (exit 5): 1.3 - 127.7
SC 126: 2.7 - 130.4
US 25 Bus: 0.8 - 131.2
SC 230: 1.8 - 133
SC 125: 0.5 - 133.5
US 1 NB, US 78 EB, US 278 EB: 0.9 - 134.4
GA STATE LINE: 0.7 - 135.1
Creation: Created between 1962-64. Ran the way it does now. Replaced SC 19 from the US 176 EB split below Whitmire south to the current US 25-SC 19 jct. Otherwise, SC 121 was multiplexed with other routes: US 25 below SC 19; SC 72 above Whitmire; US 21 on the Rock Hill Bypass. This is the 3rd SC 121.
Adjustments: None
Improvements: Paved since creation
By 1964, SC 121 was 4-laned: North Augusta to S-2-33; Whitmire to US 176 WB; the brief US 21 Bus multiplex south of Rock Hill
The Chester Bypass is shown as 4-lane in 1977.
SC 121 was 4-laned from I-20 north to about S-19-429 in 1978.
The Rock Hill Bypass above SC 5 was 4-laned in 1989 or 1990.

Comment: SC 121 was created as a 3-state route. Was this meant to be US 121 at some point? Too late, now, with the designation of US 121 in VA-WV. While South Carolina could probably use a US Route that runs along SC 121, Georgia and Florida's parts are already surrounded by US Routes.
The SC 72-121 multiplex is easily the longest current multiplex in the state, though the now defunct US 17-701 route was a little longer, and SC 2's multiplexes up to 1948 were quite lengthy as well.
Previous SC 121's: SC 121 #1: Created in 1925 or 1926 as new routing. Ran from SC 27 (current US 78) Aiken northeast through Wagener and Pelion before ending at SC 2-12 (current US 1) in Springdale. This was renumbered as SC 215 in 1928. Today it is all part of SC 302 and the US 1-21 CONN.
SC 121 #2:Appeared in 1929 or 1930, running from US 21 Branchville east through Bowman and ending at SC 31 (current US 176) Providence.
In 1937 or 1938, SC 121 was extended along US 78 west to Bamberg County, then southwest ending at SC 65 (current SC 61) Farrell Crossroads. Also, SC 121 was extended east to US 15.
In 1940, SC 121 was extended southwest to SC 362 and east to SC 6 Vance. This brought SC 121 to a total length of 39 miles.
In 1948, SC 121 was truncated on both ends to run only from US 21 Branchville to US 15. The Bamberg County portion became S-5-18.
SC 121 was re-extended from US 15 east to SC 310 Vance in 1951 or 1952.
SC 121 was extended east from SC 310 to SC 6 in 1953.
SC 121 was renumbered as SC 210 between 1962-64.
SC 121
BUSINESS

From: US 321SC 9SC 72SC 121 Chester (Chester County)
To: SC 72SC 97SC 121 Chester (Chester County).
Total Length: 3.1 miles  
ROUTE LOG
US 321, SC 9, SC 72, SC 72 Bus BEGIN, SC 121: 0 - 0
US 321 Bus, SC 9 Bus WB: 1.2 - 1.2
SC 9 Bus EB: 0.1 - 1.3
SC 72, SC 72 Bus END, SC 97, SC 121: 1.8 - 3.1
Creation: Appeared between 1962-64. This was never mainline SC 121, the only business route in SC to have not been a mainline route first.
Adjustments: None
Improvements: No multilane segments shown on 2005 Official Map.
Comment: SC 121 Business is multiplexed in its entirety with SC 72 Business.
SC 121 Business was the route of original SC 7.

 
SC 122
From: SC 72BUS Rock Hill (York County)
To: Waterford Park Dr. (York County).
Total Length: 5.1 miles  
ROUTE LOG
SC 72 Bus: 0 - 0
SC 5: 0.4 - 0.4
US 21 Bus: 0.3 - 0.7
US 21, SC 121: 2 - 2.7
I-77 (exit 79): 1.4 - 4.1
END SC 122: 1 - 5.1
Creation: Created as new primary routing in 1974 or 1975. Ran from SC 72 Bus east to I-77. This is the 2nd SC 122.
Adjustments: SC 122 was extended east to its current end in 2001.
Improvements: SC 122 was fully paved and multilane upon creation.
Comment: SC 122 provides a direct link from I-77 to downtown Rock Hill.
The SCDOT website indicates future plans to extend SC 122 east to US 521.
Previous SC 122's: SC 122 #1: Appeared in 1941 or 1942 as new primary routing. Ran from SC 2 Cayce north to US 1-21/SC 2-5 (current US 1) West Columbia, about a mile away.
In 1948, SC 122 was decommissioned. It appears SC 122 used Alexander St. and Axtell Dr.
US 123

 
 
SC 123  not currently assigned
Previous SC 123's: SC 123: Appeared in 1941 or 1942 as new primary routing. Ran as a 2.4 mile connector between SC 13 (current US 123) and SC 183 (current S-37-34/160 jct) Madison.
In 1948, SC 123 was downgraded to part of S-37-34.
SC 124
From: US 123 (Pickens County)
To: SC 20 Greenville (Greenville County).
Total Length: 6.3 miles  
ROUTE LOG
US 123: 0 - 0
Greenville-Pickens Line: 1.4 - 1.4
SC 253: 1.6 - 3
US 25: 0.5 - 3.5
US 123: 1.7 - 5.2
SC 81: 0.4 - 5.6
SC 20: 0.7 - 6.3
Creation: Created between 1968-70 as a renumbering of US 123 ALT and also US 123 east of Easly Bridge Road. Ran as it does today. This is the 2nd SC 124.
Adjustments:None
Improvements: SC 124's current routing was paved upon designation; SC 124 was also multilane east of US 123 in Greenville upon designation.
Comment: SC 124 is the original route from Greenville west to Easley and beyond and was SC 2.
Previous SC 124's: SC 124 #1: Appeared in 1941 or 1942 as new primary routing. Ran from US 1-76 split Columbia east and north to US 1 Dentsville, 6.7 miles away.
In 1948, SC 124 was downgraded to S-40-33 Trenholm Rd.

 
SC 125
From: US 278US 301 Allendale (Allendale County)
To: US 25BUS North Augusta (Aiken County).
Total Length: 55.5 miles  
ROUTE LOG
US 278, US 301: 0 - 0
SC 3: 8.4 - 8.4
Barnwell-Allendale Line: 11.1 - 19.5
Aiken-Barnwell Line: 11.1 - 30.6
SC 302: 12.2 - 42.8
US 278 EB, SC 28: 4.5 - 47.3
US 1, US 78, US 278 WB, SC 421: 4.9 - 52.2
US 25, SC 121: 2.1 - 54.3
US 25 Bus: 1.2 - 55.5
Creation: Created in 1937 or 1938, running as a short route between US 1-78 Hamburg and US 25 North Augusta.
Adjustments: In 1953, SC 125 was rerouted in North Augusta to use Atomic Rd., plus extended south as new primary routing to Beech Island, then replaced the SC 28-64 corridor from Beech Island to the Savannah River Plant below Jackson (this was probably new construction of the 4-lane route - for the most part SC 28-64 used S-2-5).
Between 1968-70, SC 125 was extended south through the Savannah River Plant and to Allendale, as it runs today. Within the SRP, the road had not been open to the public since 1953 but before that was SC 28. From the south end of SRP to Allendale was a replacement of part of SC 641.
Improvements: SC 125 was fully paved upon designation.
SC 125 was 4-laned between US 1-78 and the north end of SRP in 1953.
Comment: SC 125 connects the Augusta area with the Allendale Area.
Driving through the Savannah River Site was a unique experience in the 1980's (I haven't driven it since then, so don't know what it is like today). You had to get a pass at the gate and turn it in on the other side. There was no stopping anywhere within the facility, which was patrolled by government security forces. Often vehicles were searched before entry, and to top it off, if you reached the other side too quickly (speed limit was 55), they'd give you a speeding ticket! Also, some of the creeks had water with elevated temperatures, which was sometimes noticeable when driving by.
SC 125 is also known as SRS Route A within the facility.
I-126
SC 126
From: SC 421 Clearwater (Aiken County)
To: US 25SC 121 Belvedere (Aiken County).
Total Length: 4.4 miles  
ROUTE LOG
SC 421: 0 - 0
US 1, US 78: 0.6 - 0.6
US 25, SC 121: 3.8 - 4.4
Creation: Created in 1939, running as it does today.
Adjustments: None
Improvements: SC 126 was paved between 1943-48; no multilane segments shown on 2005 Official Map.
Comment: SC 126 provides a way to get to I-20 from the Clearwater Area while avoiding Augusta and N. Augusta.

 
 
SC 127
From: US 221 Laurens (Laurens County)
To: US 76US 76BUS Laurens (Laurens County).
Total Length: 3.7 miles  
ROUTE LOG
US 221: 0 - 0
US 76, US 76 Bus: 3.7 - 3.7
Creation: Appeared by 1964 as a dotted line, and opened by 1967. Ran the way it does now. This is the 2nd SC 177.
Adjustments:None
Improvements: SC 127 has been fully paved since designation.
No multilane sections shown on the 2005 Official Map.
Comment: SC 127 serves as a southeast bypass of Laurens.
SC 127 has a diamond interchange at S. Harper St.
Previous SC 127's: SC 127 #1: Appeared in 1941 or 1942 as new primary routing. Ran from SC 9 (current SC 295) White Stone north through Glendale and Clifton before ending at US 29 near Cowpens. SC 127 was 8 miles long.
In 1948, SC 127 was downgraded to S-42-30.
SC 128  not currently assigned
Previous SC 128's: SC 128: Appeared in 1940, running from SC 28 (current US 278-SC 68 jct) Alameda south to Gillisonville and Ridgeland, then east to SC 170 (current SC 462) Old House. This was mostly a renumbering of SC 36, except east of Ridgeland was mostly new primary routing.
About 1967, all 33 miles of SC 128 were renumbered as part of US 278. Today, east of US 17 is now part of SC 336.
SC 129
From: US 29SC 292SC 358 Lyman (Spartanburg County)
To: I-85 Spartanburg County.
Total Length: 5 miles  
ROUTE LOG
US 29, SC 292, SC 358: 0 - 0
I-85 (exit 68): 5 - 5
Creation: Appeared between 1962-64, running the way it does now. This replaced part of US 29, when US 29 was removed from I-85's routing.
Adjustments: None
Improvements: SC 129 was fully paved upon creation.
No multilane sections shown on 2005 Official Map.
Comment: SC 129 serves as a way to get from I-85 to Lyman/US 29 SB/Greer.

Last Update: 25 August 2005

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