I-285 & SR 400 Improvements

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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.

Project Map

Project Map

Project Overview

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Get In Touch
Mailing Address:
Marlo L. Clowers, P.E., DBIA
I-285/SR 400 Project Office
270 Carpenter Drive NE,
Atlanta, GA 30328
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