Alabama State Highways

The Alabama State Highway System is a network of roads maintained by the Alabama Department of Transportation (ALDOT). The system includes state routes, interstate highways, and U.S. highways.

There are currently 245 state routes in Alabama, with a total length of 10,500 miles. The state routes are numbered using a standard system: odd numbers signify north–south routes, and even numbers signify east–west routes.

The interstate highway system in Alabama consists of 13 interstates, with a total length of 750 miles. The interstates are numbered using a national system: odd numbers signify north–south routes, and even numbers signify east–west routes.

The U.S. highway system in Alabama consists of 19 U.S. highways, with a total length of 3,850 miles. The U.S. highways are also numbered using a national system: odd numbers signify north–south routes, and even numbers signify east–west routes.

ALDOT is responsible for the maintenance and construction of all state highways, interstate highways, and U.S. highways in Alabama. The department also provides traffic enforcement and emergency services on these roads.

The Alabama State Highway System is an important part of the state’s transportation infrastructure. It provides a safe and efficient way for people to travel throughout the state. The system also plays a vital role in the state’s economy, by supporting businesses and tourism.

Some of the most important state highways in Alabama:

  • Interstate 65: This interstate runs north–south through the center of the state, connecting Birmingham, Montgomery, and Mobile.
  • Interstate 20: This interstate runs east–west through the southern part of the state, connecting Atlanta, Georgia, and Birmingham.
  • U.S. Highway 280: This highway runs east–west through the northern part of the state, connecting Birmingham and Huntsville.
  • U.S. Highway 80: This highway runs north–south through the central part of the state, connecting Montgomery and Mobile.
  • U.S. Highway 78: This highway runs east–west through the central part of the state, connecting Birmingham and Gadsden.