Previous SC 507's:
1946 ROUTE LOG
US 521: 0 - 0
SC 527: 5.0 - 5.0
SC 175: 7.7 - 12.7
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SC 507: Appeared in 1940 as new primary routing, running from SC 527 north to SC 175 (now SC 261) east of Kingstree.
In 1942, SC 507 was extended south as new primary routing to US 521.
In 1947, SC 507 was downgraded to S-45-25 north of SC 527 and S-45-30 south of SC 527. Today it is S-45-30, a little S-45-38, and S-45-116.
SC 507 appears east of Kingstree
1940 Official
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SC 507 extended to US 521
1942 Official
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