Sign up for SR 400 Express Lanes project updates here. The Georgia Department of Transportation announced that tree clearing will resume on six sections of State Route 400 in early August, as the multi-year, billion-dollar widening project enters a new construction phase. In its July newsletter, GDOT also said SR 400’s southbound Exit 5, which provides access to the North Springs MARTA station, Abernathy Road, and Hammond Drive, will close “late…