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The Highways of South Carolina US 25 
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US 25
From: Georgia State Line at North Augusta (Aiken County)
To: North Carolina State Line (Greenville County)
Total Length: 140.4 miles  
Nationally, US 25 runs from US 17 Brunswick, GA to US 42-127 at the Ohio River Bridge, Cincinnati, OH.
ROUTE LOG
GA STATE LINE: 0 - 0
US 1 NB, US 78 EB, US 278 EB: 0.7 - 0.7
SC 125: 0.9 - 1.6
SC 230: 0.5 - 2.1
US 25 Bus: 1.8 - 3.9
SC 126: 0.8 - 4.7
I-20 (exit 5): 2.7 - 7.4
Edgefield-Aiken Line: 1.6 - 9
SC 19, SC 121 NB: 11.6 - 20.6
SC 23 EB: 5.6 - 26.2
SC 23 WB: 0.5 - 26.7
SC 430: 1 - 27.7
SC 283: 3.2 - 30.9
US 378: 7.8 - 38.7
Greenwood-Edgefield Line: 2 - 40.7
US 178 EB: 13.1 - 53.8
SC 67: 1.3 - 55.1
SC 225: 0.5 - 55.6
US 25 Bus, US 178 Bus, US 221 SB: 1.2 - 56.8
SC 34: 1.3 - 58.1
US 221 NB, SC 72 EB, SC 72 Bus: 3.5 - 61.6
SC 254: 1.6 - 63.2
US 25 Bus, US 178 Bus, SC 72 WB: 0.6 - 63.8
SC 185: 5.8 - 69.6
US 178 WB: 0.1 - 69.7
SC 246: 0.9 - 70.6
SC 254: 0.9 - 71.5
US 25 Bus: 5.4 - 76.9
Laurens-Greenwood Line: 1.1 - 78
SC 252: 2.6 - 80.6
US 25 Bus: 0.6 - 81.2
US 76 EB: 5.9 - 87.1
Greenville-Laurens Line: 0 - 87.1
US 76 WB: 1.1 - 88.2
SC 8, SC 247, SC 418: 10.2 - 98.4
SC 86: 5 - 103.4
SC 291: 5.3 - 108.7
I-85 (exit 44): 2.4 - 111.1
SC 20: 0.8 - 111.9
I-185 (exit 15), US 29: 0.3 - 112.2
SC 81: 1.2 - 113.4
US 123: 1 - 114.4
SC 253: 0.5 - 114.9
SC 183: 3.1 - 118
US 276 EB: 3.7 - 121.7
US 276 WB: 0.8 - 122.5
SC 290: 6.2 - 128.7
SC 414 WB: 0.9 - 129.6
SC 414 EB: 0.1 - 129.7
SC 11: 3.7 - 133.4
NC STATE LINE: 7 - 140.4
 Creation: Appeared in 1927 as an original US highway. Very generally ran the way it does now through North Augusta, Edgefield, Greenwood, Ware Shoals, Greenville, and Travelers Rest. US 25 was assigned to the entirety of SC 21. In Greenville, US 25 used Augusta Rd, Main St, and Buncombe Rd.
In 1928, SC 21 was dropped from all of US 25.
In 1937, US 25 was rerouted slightly in Greenville to use College Ave from Main St to Buncombe St. to Rutherford Ave directly to Travelers Rest. Buncombe St out to Travelers Rest is shown as primary routing on maps up through 1947, but I don't know what it was posted as. Today it is S-23-13.
In 1960 or 1961, US 25 was given its bypass of North Augusta, leaving behind US 25 Business.
In 1963, US 25 was placed on a new bypass east of Ware Shoals, leaving behind US 25 Business.
In 1964, US 25 was rerouted to the east of central Travelers Rest, leaving part of US 276 and a secondary route northward.
In 1968 or 1969, US 25 was placed on its western bypass of Greenville. All of this was a renumbering of SC 250. This left behind US 25 Business, but today this is part of SC 291, unnumbered Augusta Rd, a little SC 20 and some US 276. Also in this timeframe, US 25 was given its eastern bypass of Greenwood.
In 1973, US 25 was rerouted in northern Greenville County on a new modern ascent into the mountains. The old route became S-23-969.
Improvements:Upon designation, US 25 was paved only from today's SC 86 north to Travelers Rest.
In 1928, US 25 was paved from Travelers Rest to the NC Line and also around Greenwood.
In 1929 or 1930, US 25 was paved from SC 86 south to Princeton and also from Ware Shoals to Kirksey. US 25 was also paved in the N. Augusta area.
In 1931, US 25 was paved from Princeton to Ware Shoals; the remaining Aiken County mileage; and from Kirksey down to below today's US 378.
The last piece of US 25 to be paved, Edgefield County's routing, occurred in 1932.
The first piece of US 25 to be 4-laned was from SC 250 (current US 25-SC 291 jct) north to Greenville in 1957 or 1958.
In 1959, US 25 was 4-laned from Greenville north to SC 250 (today's US 25-276 southern split) near Furman Univ.
Between 1960-62, US 25 was 4-laned to the north side of Travelers Rest.
In 1963, US 25 was 4-laned in Greenwood and also from the Georgia Line to north of Belvidere.
Between 1965-67, US 25 was 4-laned north to SC 11; a couple miles south of SC 250; from Greenwood south to the US 178 split
In 1968 or 1969, US 25 was 4-laned from Greenwood to Hodges. Also, when US 25 replaced SC 250, it was all 4-laned except the northernmost mile of the Greenville Bypass.
The 1973 rerouting to the NC Line was 4-laned upon opening.
In 1978, US 25 was 4-laned from I-20 north into Edgefield County.
In 1982, the northern piece of the Greenville Bypass was 4-laned.
Between 1983-85, US 25 was 4-laned on the northern half of the Greenwood Bypass.
In 1992, US 25 was 4-laned south to Ware Place.
Between 1993-96, US 25 was 4-laned from Hodges to Ware Shoals.
Between 1998-2000, US 25 was multilaned from Ware Place to Princeton.
In 2003, US 25 was multilaned from Princeton to Ware Shoals. This makes US 25 continuously multilane from the North Carolina line to the US 178 split south of Greenwood.
Comment: US 25 serves the western side of South Carolina.
A carolina cutout remained on SC 10 in Greenwood as late as 1988.
US 25 SB actually runs in McCormick County for a stretch of about 2 miles, while the NB side is in Greenwood County.
US 25 is the subject of the 1974 Official Map cover.
US 25BUSINESS
From: US 25SC 121 North Augusta (Aiken County)
To: Georgia State Line in North Augusta (Aiken County)
Total Length:2.8 miles  
ROUTE LOG
US 25, SC 121: 0 - 0
SC 230: 1.3 - 1.3
SC 125: 0.8 - 2.1
Georgia State Line: 0.7 - 2.8
 Creation: Appeared in 1960 or 1961, running as it does now. It was mainline US 25 prior to this.
Adjustments: None
Improvements: Fully paved from inception; multilane by 1963.
Comment: US 25 Business for North Augusta uses Georgia Ave.
US 25 Business was once part of SC 21.
US 25 Business is one of two SC business routes to cross a state line (US 701 Tabor City is the other).
US 25BUSINESS
From: US 25 Ware Shoals (Greenwood County)
To: US 25 near Brewerton (Laurens County)
Total Length:4.5 miles  
ROUTE LOG
US 25: 0 - 0
SC 420: 1.8 - 1.8
SC 252 WB: 0.2 - 2
Laurens-Greenwood Line: 0.9 - 2.9
SC 252 EB: 0.9 - 3.8
US 25: 0.7 - 4.5
 Creation: Appeared in 1963, running as it does now. It was mainline US 25 prior to this.
Adjustments: None
Improvements: Fully paved from inception; no multilane segments.
Comment: US 25 Business for Ware Shoals uses S. Greenwood Ave and Saluda Ave.
US 25 Business was once part of SC 21.
US 25BUSINESS
From: US 25US 178US 221 New Market (Greenwood County)
To: US 25US 178SC 72 Greenwood (Greenwood County)
Total Length:2.8 miles  
ROUTE LOG
US 25, US 178, US 178 Bus Begin, US 221: 0 - 0
SC 10: 3.1 - 3.1
SC 72 Bus: 0.4 - 3.5
US 25, US 178, US 178 Bus End, SC 72: 1.4 - 4.9
 Creation: Appeared in 1968 or 1969, running as it does now. It was mainline US 25 prior to this.
Adjustments: None
Improvements: Fully paved from inception; multilane upon designation.
Comment: US 25 Business for North Augusta uses Main St and Montague St.
US 25 Business was once part of SC 21.
This US 25 Business is 100% duplexed with US 178 Business.
US 25 Business  Decommissioned
Previous US 25 Business: US 25 Business: Appeared in 1968 or 1969 as US 25 was placed on a bypass around the west of Greenville.
US 25 Business followed Augusta St, N. Main St, College St, Buncombe St. and Poinsett Hwy.
In 1975, US 25 Business was taken off Main St and instead used Academy St.
US 25 Business was dropped between 1998-2000. Below I-85 became an extended SC 291. Just below downtown Greenville became an extended SC 20. From central Greenville northward remained part of US 276.
Only US 25 Business south of Greenville was part of original SC 21.
Last Update: 4 April 2006

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