The Georgia Department of Transportation has announced the latest round of lane and ramp closures and other traffic changes for Transform 285/400, its massive project to reconstruct the I-285/Ga. 400 interchange.

Schedules may change based on the work and the weather.

Abernathy Road lane closure

July 16-19, westbound at Glenlake Parkway, one right lane, 7 a.m. to 7 p.m.

Ga. 400 ramp closure

July 16-18, southbound ramp to I-285 westbound closed, with detour onto Glenridge Connector, 9 p.m. to 5 a.m.

Ga. 400 lane closures

July 13-14, southbound between Abernathy Road and Hammond Drive, two right lanes, 9 p.m. to 9 a.m.

July 13-14, northbound between Abernathy Road and Hammond Drive, one right lane, 8 p.m. to 6 a.m.

July 13-14, southbound between Northridge Road and Spalding Drive, one right lane, 8 p.m. to 6 a.m.

July 20-21, northbound and southbound between Glenridge Connector and Pitts Road, alternating one right lane and one left lane, 8 p.m. to 6 a.m.

I-285 lane closures

July 20-21, eastbound and westbound between Lake Forrest Drive underpass and east of Ashford-Dunwoody Road, alternating one right lane and one left lane, 8 p.m. to 6 a.m.

Mount Vernon Highway closure

July 13-14, closed between Barfield Road and Peachtree-Dunwoody Road, detour onto Barfield Road and Abernathy Road, 9 p.m. to 9 a.m.

Other traffic changes

On July 17 and 20, 1:30 to 2 p.m., the following roadways will have traffic pacing — meaning police cars will sometimes force other vehicles to slow or stop — on all lanes: I-285 eastbound between Roswell Road and Perimeter Center Parkway; I-285 westbound between Chamblee-Dunwoody Road and Perimeter Center Parkway; and Perimeter Center Parkway between Lake Hearn Drive and Hammond Drive.

I-285 eastbound and westbound ramps to Ga. 400 will have period traffic pacing — meaning police cars will sometimes force other vehicles to slow or stop — between 7 a.m. and 7 p.m.

John Ruch

John Ruch is an Atlanta-based journalist. Previously, he was Managing Editor of Reporter Newspapers.