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 closures

July 26-27, 9 p.m. to 5 a.m., westbound between Peachtree-Dunwoody Road and Barfield Road, one right lane.

Ga. 400 ramp closures

July 26-27 (back-up dates for weather July 27-28) and 29-30, 9 p.m. to 5 a.m., southbound ramp to I-285 westbound closed.

Ga. 400 lane closures

July 26-28, 9 p.m. to 9 a.m., northbound between Mount Vernon Highway and North Springs MARTA Station, various closure of three left lanes and three right lanes.

July 27-28, 9 p.m. to 9 a.m., northbound between Johnson Ferry Road and Hammond Drive, one left lane.

July 28-29, 9 p.m. to 5 a.m., northbound between Mount Vernon Highway and North Springs MARTA Station, various closure of three left lanes and three right lanes.

I-285 ramp closures

July 26-27, 9 p.m. to 9 a.m., eastbound ramp to Ga. 400 northbound closed.

Aug. 1-2, 9 p.m. to 5 a.m., westbound ramp to Ga. 400 northbound and southbound closed.

I-285 lane closures

July 26, 7 a.m. to 7 p.m., eastbound between Roswell Road and Glenridge Drive, one right lane.

July 26-29, 9 p.m. to 5 a.m., westbound at Peachtree-Dunwoody Road, one right lane.

July 26-27, 9 p.m. to 5 a.m., eastbound and westbound at Long Island Drive, two right lanes.

July 26-28, 9 p.m. to 9 a.m., eastbound and westbound between Glenridge Drive and Peachtree-Dunwoody Road, two left lanes.

July 29-30, 9 p.m. to 5 a.m., eastbound and westbound between Roswell Road and Ga. 400, two right lanes.

July 31-Aug. 1, westbound between Roswell Road and Lake Forrest Drive, two right lanes.

July 31-Aug. 4, 9 p.m. to 5 a.m., eastbound and westbound between Glenridge Drive and Peachtree-Dunwoody Road, two left lanes.

Aug. 2-5, 9 p.m. to 5 a.m., eastbound and westbound between Lake Forrest Drive and Long Island Drive, one right lane.

Long Island Drive closures

Aug. 2-5, 9 p.m. to 5 a.m., no location given.

Peachtree-Dunwoody Road closures

July 26-29, 9 p.m. to 5 a.m., no location given.

Roswell Road ramp closures

July 30-31, 9 p.m. to 5 a.m., ramp to I-285 eastbound closed.

July 31-Aug. 1, 9 p.m. to 5 a.m., ramp to I-285 westbound closed.

Roswell Road lane closures

July 26-27, 9 p.m. to 11 a.m., northbound between I-285 and Carpenter Drive, two right lanes.

July 29-31, 9 p.m. to 5 a.m., northbound between I-285 and Carpenter Drive, two right lanes.

Other traffic changes

On July 26-27, Ga. 400 northbound between Lenox Road and I-285 will have traffic pacing (police forcing other vehicles to slow or stop) on all lanes, 9 p.m. to 5 a.m.

The I-285 eastbound and westbound ramps to Ga. 400 will have periodic traffic pacing (police forcing other vehicles to slow or stop) between 7 a.m. and 7 p.m.