SC 451: Appeared in 1942 as new primary routing, running from US 52 Bonneau to SC 450 (now S-8-18) Russellville, then west from SC 450 another mile as new primary routing.
In 1947, SC 451 was downgraded to S-8-35. The portion west of Russellville is now S-8-204. Most of the southern half of this is still unpaved.
