U.S. Route 78 in Alabama

U.S. Route 78 marker
U.S. Route 78
State Route 4
Map
US 78 highlighted in red
Route information
Maintained by ALDOT
Existed1926–present
Major junctions
West end I-22 / US 78 at the Mississippi state line
Major intersections
East end US 78 at the Georgia state line
Location
CountryUnited States
StateAlabama
CountiesMarion, Walker, Jefferson, Saint Clair, Talladega, Calhoun, Cleburne
Highway system
  • Alabama State Highway System
SR 77 SR 79
SR 3SR 4 SR 5

U.S. Route 78 (US 78) is a major east–west U.S. Highway across the central part of Alabama. It is internally designated State Route 4 (SR 4) by the Alabama Department of Transportation (ALDOT), though the only section of SR 4 that is signed is along portions mainly west of Jasper. The section from the Mississippi state line to near Graysville is concurrent with Interstate 22 (I-22); from Graysville south to Birmingham, US 78 takes its original routing. East of Birmingham to the Georgia state line, US 78 has been replaced as a major through-route by I-20. The two routes roughly parallel each other, with junctions at Leeds and Pell City.[1][2]

West of Jasper, old US 78 is signed as SR 118 to Guin, and the segment from Guin northward to I-22 at Hamilton is signed as US 43/US 278.

  1. ^ "Overview Map of US 78 (AL; 1)" (Map). Google Maps. Retrieved January 2, 2023.
  2. ^ "Overview Map of US 78 (AL; 2)" (Map). Google Maps. Retrieved January 5, 2023.