SC 21 North Augusta to Greenville and beyond 1922 Auto Trails

US 25 replaces SC 21 1930 Official

Adjustments: In 1928, SC 21 was dropped from US 25.
About 1929, US 25 was given its routing in the Hodge and Cokesbury area. The old route remained part of SC 24 and the rest became secondary at that time. Today this is US 178, SC 246, and Daniel Rd.
In 1932, 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 became US 25 ALT. Today it is S-23-13.
Between 1941-46, US 25 was rebuilt to avoid Donaldson AFB south of Greenville. A chunk of the original highway was closed to traffic. The northern piece that remained open I believe became an extended SC 294 (now S-23-27) and the southern piece remained secondary (S-23-70 north of I-185 and S-23-1145/1147 south of I-185 which still has some original concrete).
Between 1946-50, US 25 was removed from Kirksey Dr in South Greenwood, leaving behind S-24-40.
In 1956 (bridge date), US 25 was removed from S-23-7 and S-23-50 Old Augusta Rd south of Greenville.

US 25 through Donaldson AFB 1940 Greenville County

US 25 around Donaldson AFB 1953 Greenville County

US 25 straightened out north of the AFB 1957 Greenville County

In 1959, US 25 was placed on new expressway routing in the Furman University area, leaving behind more S-23-13, plus S-23-2 which is now the ramp from S-23-13 to US 276 south.
In 1960, US 25 was rerouted to the east of central Travelers Rest, leaving part of US 276 and US 25 CONN.

US 25 original Travelers Rest routing 1957 Greenville County

US 25 original routing to North Carolina 1963 Greenville County

In 1960 (bridge date), US 25 was given its bypass of North Augusta, leaving behind US 25 Business. The bypass was a partial upgrade to S-2-123 and new construction.

US 25 through North Augusta 1956 Aiken County

US 25 bypasses North Augusta 1963 Aiken County

In 1963, US 25 was placed on a new bypass east of Ware Shoals, leaving behind US 25 Business.

US 25 through Ware Shoals 1960 Greenwood County

US 25 bypasses Ware Shoals 1963 Greenwood County

In 1968, US 25 was given its eastern bypass of Greenwood.

US 25 through Greenwood 1965 Greenwood County

US 25 bypasses Greenwood 1968 Greenwood County

In 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, S-23-201 Augusta Rd, a little SC 20 and some US 276.

SC 250 around the west of Greenville 1956 Official

US 25 around the west of Greenville 1969 Official

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.

US 25 original routing to North Carolina 1968 Greenville County

US 25 on new routing to North Carolina 1973 Greenville County

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, 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.
In 1959, US 25 was 4-laned from Greenville north to SC 250 (today's US 25-276 southern split) near Furman Univ.
In 1960, 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.
In 1965, US 25 was 4-laned a couple miles south of SC 250
In 1966, US 25 was multilaned from Greenwood south to the US 178 split
In 1967, US 25 was 4-laned north to SC 11
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.
In 1995 or 1996, US 25 was 4-laned from Hodges to Ware Shoals.
In 1998 or 1999, 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 2004 but is gone now. I believe this was the last remaining cutout in South Carolina.
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.
There is a posted US 25 TRUCK in Edgefield that uses S-19-10 Bauskett St around the south and west of Edgefield. US 25 Business postings are at each end of the Truck route but no where else and the TRUCK route is extensively posted as US 25 TRUCK only.