 SR 758 was primary SR 63 until 1946.State Route 762 in Smyth and Washington Counties runs  from State Route 91 at Lodi east to State Route 600 and State Route 660 at St. Clair Bottom and then north to Interstate 81 and State Route 107 in Chilhowie.Except for a realignment at St. Clair Bottom, SR 762 was primary State Route 79 until 1953.