 US 78 was designated along the northern branch of SR 8, from the Alabama state line to Villa Rica, and mainline SR 8, from Villa Rica to Decatur.SR 45 was redesignated as SR 10 from Decatur to a point west of Loganville.SR 13 was designated from that point to Monroe, SR 8/10 were designated from Monroe to about Bogart, SR 10 was designated from either Athens or Lexington to Washington, SR 17 was designated from Washington to Thomson, and SR 12 was designated from either Thomson or Harlem to Augusta.