List of U.S. Highways in Alabama

The U.S. Highways in Alabama are the subset of the United States Numbered Highway System. These highways in the U.S. state of Alabama are maintained by the Alabama Department of Transportation (ALDOT). There are 19 U.S. Highways that travels through Alabama, totaling 3,852.85 miles (6,200.56 km). U.S. Route 31 (US 31) is the highway with the longest segment in Alabama, with 386.449 miles (621.929 km). The shortest is US 72 Alternate, crossing 68.3 miles (109.9 km) of North Alabama. One former U.S. Highway existed in Alabama: US 241. It traveled through the eastern part of the state. US 241 was replaced by US 280 and US 431 in 1954.

Highway markers for US 31 and US 431
Map of Alabama State Route System
  U.S. Routes
Highway names
InterstatesInterstate nn (I-nn)
US HighwaysU.S. Route nn (US nn)
StateState Route nn (SR nn)
System links
  • Alabama State Highway System
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