Previous SC 636's:
1946 ROUTE LOG
SC 63: 0 - 0
SC 64: 5.2 - 5.2
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SC 636: Appeared in 1942 as new primary routing from SC 63 north to SC 64 east of and parallel to US 21.
In 1947, SC 636 was downgraded to S-15-33.
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SC 636 in central Colleton County
1942 Official
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