Navigating noise issues, congestion and even the religious concerns of three Jewish congregations in the area, construction crews are performing surgery on a major artery in metro Atlanta in the second-largest project ever for the Georgia Dept. of Transportation (GDOT). The $800-million Transform 285/400 project is also the agency’s second design-build-finance (DBF) project.
The developer, North Perimeter Contractors (NPC), a subsidiary of Ferrovial Construction, is building 32 bridges, 16 noise barriers, a diverging-diamond interchange and new collector-distributor lanes, among other components, to reduce traffic congestion and enhance safety in the area near the Interstate 285/State Route 400 interchange. The improvements will facilitate better east-west travel along I-285 and north-south travel along SR 400 by improving 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.