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I-285 & SR 400 Improvements (Transform 285/400)

The Transform 285/400 improvement project is designed to help reduce traffic congestion and enhance safety in the area near the I-285/SR 400 interchange in metro Atlanta. This priority project adds new flyover ramps, new collector-distributor lanes and other facilities to aid east-west travel along I-285 and north-south travel along SR 400. The project will improve 4.3 miles of I-285 from west of Roswell Road to east of Ashford Dunwoody Road and 6.2 miles along SR 400 from the Glenridge Connector to Spalding Drive.


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      There are several ways to stay informed about the Transform 285/400 Project.

      Email & Phone

      (404) 609-4609 Project Hotline

      Mailing Address

      Albert “Butch” Welch, Jr., P.E. Program Delivery Engineer
      Major Projects I-285/SR 400 Project Office
      270 Carpenter Drive NE, Atlanta, GA 30328

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