Georgia Department of Transportation

The Georgia Department of Transportation (GDOT) is the organization in charge of developing and maintaining all state and federal roadways in the U.S. state of Georgia. In addition to highways, the department also has a limited role in developing public transportation and general aviation programs. GDOT is headquartered in downtown Atlanta and is part of the executive branch of state government.

GDOT has broken up the state of Georgia into seven districts in order to facilitate regional development. Each district is responsible for the planning, design, construction, and maintenance of the state and federal highways in their region.

The State Highway Department was created on August 16, 1916 by an act of the Georgia General Assembly. In 1918 came the creation of the Georgia State Highway Commission, which made surveys and oversaw plans for road projects. Finally, in 1972, came the creation of the Georgia Department of Transportation by Governor Jimmy Carter.

The Georgia Department of Transportation plans, constructs, maintains, and improves the state's road and bridges; provides planning and financial support for other modes of transportation such as mass transit and airports; provides airport and air safety planning; and provides air travel to state departments. The department also provides administrative support to the State Road and Tollway Authority and the Georgia Rail Passenger Authority.

A majority of the department's resources are directed toward maintaining and improving the state's network of roads and bridges. Proceeds from the state's motor fuel taxes are constitutionally earmarked solely for use on Georgia's roads and bridges. Non-road and bridge construction projects are supported by a combination of state general funds, federal funds, and local funds.

The department is responsible for waterways, including the Intracoastal Waterway and the Savannah and Brunswick ports.

The state of Georgia has 1,244 miles (2,002 km) of Interstate highways within its state lines. Georgia's major Interstate Highways are I-95, I-75, I-16, I-85, and I-20. Other important interstate highways are I-24 and I-59. I-285 is Atlanta's perimeter route and I-575 connects with counties in north Georgia on I-75 and I-675 connects to I-285 on the south side of Atlanta. I-475 is a western bypass of Macon, shortening the trip for through I-75 traffic. The Georgia Department of Transportation maintains only 16 percent of the roads in the state. The other 84 percent are the responsibility of the counties and cities; 75 percent of those roads are county roads.

GDOT maintains approximately 18,000 miles of state routes and has maintained this mileage cap since the early 1970s. This has led to a significant shift of road responsibility from state responsibility to local governments. This is because the state highway system has not been allowed to grow in proportion to the massive overall road system growth due to rapid population increases statewide over the past 40 years. This has left many urbanized counties forced to maintain many miles of arterial routes and a few freeways due to inability to get these roads onto the state highway system.