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State Route 400 (SR 400) is a vital north-south transportation corridor in metro Atlanta that connects people, jobs and freight. To improve mobility, Georgia DOT plans to add new, optional express lanes from I-285 to McFarland Parkway.

 Announcements

 5 Things You Need to Know

  1. Adds new lane miles in metro Atlanta
  2. The express lanes will be added to the existing general purpose lanes
  3. Projected to reduce delay by 19,000+ hours each day in the SR 400 corridor by 2030
  4. Provides more reliable trip times and free access for transit and vanpools
  5. One of the initial 11 large-scale Major Mobility Investment Program projects to improve transportation in Georgia’s metro areas


SR 400 Express Lanes​​​​​​

Fact Sheet

Details about the SR 400 Express Lanes project.

View Fact Sheet​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​

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 Contacts

For more infomration about this project please contact the following:

Georgia Department of Transportation
One Georgia Center | 600 West Peachtree NW
Atlanta, GA 30308
(404)347-0185
Email