Arizona Department of Transportation

The Arizona Department of Transportation (ADOT, pronounced "A-Dot") is an Arizona state government agency charged with facilitating mobility within the state. In addition to managing the state's highway system, the agency is also involved with public transportation and municipal airports. The department was created in 1974 when the state merged the Arizona Highway Department with the Arizona Department of Aeronautics.

ADOT was a pioneer in the use of rubberized asphalt as a method to increase durability and reduce road noise on state highways while providing an opportunity to recycle scrap tires. Its "Quiet Pavement" project started in 2003 surfaced about of Phoenix-area freeways with rubberized asphalt.

Former U.S. Secretary of Transportation Mary Peters had previously been a Director of ADOT.

ADOT's publications division publishes the Arizona Highways magazine.

ADOT Divisions

Aeronautics Division

The Aeronautics Division, now a part of the Multimodal Planning Disivion, promotes aviation in the state, license aircraft dealers, assists in the development of public airport projects and manages Grand Canyon National Park Airport.

Intermodal Transportation...
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