Previous SC 433's:
1946 ROUTE LOG
SC 28 ALT: 0 - 0
SC 432 SB: 5.7 - 5.7
SC 432 NB: 0.1 - 5.8
SC 283: 4.7 - 10.5
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SC 433 Appeared in 1940 as new primary routing, running from SC 28 ALT (now S-33-11) McCormick southeast to SC 283.
In 1947, SC 433 was downgraded to S-33-22. Today, it is S-33-22, a sliver of S-33-21, S-33-114, and S-33-138.
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SC 433 out of McCormick
1940 Official
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