The Highways of South Carolina SC 500 to 509 
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SC 500  not currently assigned
Previous SC 500's: SC 500: Appeared in 1941 or 1942 as new primary routing. Ran from SC 333 Furman northwest to SC 5 (current US 321) near Estill.
In 1948, the 4 miles of SC 500 were downgraded to S-25-35.
US 501

 
 
 
 
SC 501  not currently assigned
Previous SC 501's: SC 501: Appeared in 1923 as new primary routing. Ran from SC 9 and SC 50 (current US 1) Cheraw northwest 9 miles to the North Carolina State Line near Morven, NC. The route then became the original NC 80.
In 1928, SC 501 was renumbered as SC 96 and later to US 601. Today it is the exiting stretch of US 52.

 
 
SC 502  not currently assigned
Previous SC 502's: SC 502: Appeared in 1940 as new routing. Ran from SC 175 (current SC 261) in central Williamsburg County to Nesmith, 10 miles away.
In 1941 or 1942, SC 502 was extended east as new routing to SC 511 Rhems, and southeast to end at US 701 Plantersville, giving SC 502 a length of 32 miles.
In 1948, SC 502 west of Rhems was downgraded to S-45-24. East of Rhems was also downgraded to a Georgetown County route, but later became part of today's SC 51.

 
 
SC 503  not currently assigned
Previous SC 503's: SC 503: Appeared in 1940 as new primary routing. It ran 12 miles between US 501 in Conway and US 501 (current S-26-15) Myrtle Beach, several miles shorter than US 501's path between Conway and Myrtle Beach.
In 1949, SC 503 was renumbered as part of US 501.

 
 
SC 504  not currently assigned
Previous SC 504's: SC 504: Appeared in 1940 as new primary routing. Ran from SC 5 (current S-46-6) Lesslie east 9 miles to US 521 at Andrew Jackson State Park.
SC 504 was renumbered as part of SC 5 between 1959 and 1964 ('61 Rand McNally does not label the road).
SC 504 was not fully paved until after 1953, and was still using a ferry across the Catawba River as late as 1958.

 
 
SC 505  not currently assigned
Previous SC 505's: SC 505: Appeared in 1940 as new primary routing. Ran as a cutoff between SC 5-215 (current US 1-21 CONN) and SC 2 Cayce.
In 1948, SC 505 was downgraded to what appears to be Holland Ave and 12th St. Today, 12th St is part of SC 35.

 
 
SC 506  not currently assigned
Previous SC 506's: SC 506: Appeared in 1940 as new primary routing. Ran from SC 9 (current SC 34 at Old Latta Hwy) south along the west side of the railroad to US 301-501, 3 miles away. This may have once been original SC 23 and later US 217, but was not a primary route in 1939.
In 1948, SC 506 was downgraded to what S-17-25.

 
 
SC 507  not currently assigned
Previous SC 507's: SC 507: Appeared in 1940 as new primary routing. Ran from SC 175 (current SC 261) in central Williamsburg county south to SC 527.
In 1941 or 1942, SC 507 was extended south to US 521 for a total of 13 miles.
In 1948, SC 507 was downgraded to S-45-116, S-45-30, and a little piece of S-45-38 in between.
SC 508  not currently assigned
Previous SC 508's: SC 508: Appeared in 1940 as new primary routing. Ran from SC 5 (current US 301-321 split) Ulmers southwest to SC 331 (current SC 641) near Allendale, for a length of 7 miles.
In 1947 or 1948, SC 508 was paved and renumbered as part of US 301.

Last Update: 28 December 2004

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