| Previous SC 464's: 
 1946 ROUTE LOG
 SC 46: 0 - 0
 SC 462: 3.0 - 3.0
 
 |  | SC 464: Appeared in 1942 as new primary routing, running from SC 46 west of Bluffton north to SC 462 (now US 278). In 1947, SC 464 was downgraded to S-7-29.
 |   SC 464 near Bluffton
 1942 Official
 |