Alabama Department of Transportation, located in Montgomery, Ala., oversees transportation services in Alabama. ALDOT is organized in more than 10 geographic divisions, including administrative, air transportation, maintenance, materials and tests, computer services, construction, public affairs, personnel, research and development, equipment procurement and services, and legal divisions. The department has several boards and committees, operating within various bureaus and cooperatives. It provides online information about routes and bridge designs, overweight permits, size and weight laws, motor vehicle division, motor carrier safety unit, and bridge formula weights. Additionally, the department provides information about emergency road closures, construction bulletins, project lettings, rest areas, publications, coliseum plume, and public auction events.