Previous SC 712's:
1946 ROUTE LOG
SC 9: 0 - 0
SC 913: 5.4 - 5.4
SC 530: 7.7 - 13.1
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SC 712: Appeared in 1940 as a new primary route from SC 9 near Dillon east to SC 913 (now S-17-22).
In 1942, SC 712 was extended east as new priary routing to SC 41 Lake View.
In 1947, SC 712 was downgraded to S-22-19 west of S-17-22 and S-22-30 east of it. Today all of it is S-17-30.
SC 712 east of Dillon
1940 Official
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SC 712 extended to Lake View
1942 Official
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