Detour details have been announced for the night closures of the Riverside Drive bridge over I-285 on three upcoming weekends starting Aug. 5.

The closures, part of work on new roundabouts at the interchange, are slated for Aug. 5-8, Aug. 12-15 and Aug. 19-22, according to the Georgia Department of Transportation. On those weekends, the closures will begin at 9 p.m. on Friday and end at 5 a.m. on Monday. All schedules are weather permitting.

A new rendering of the final design of the Riverside Drive/I-285 roundabouts released by GDOT.

Detour signs will be in place and GDOT posts a live traffic and detour information map at 511ga.org. The detour details as described by GDOT:

For motorists exiting I-285 westbound; motorists coming from Coldstream Court; or vehicles traveling south on Riverside Drive from outside the Perimeter:

To continue south on Riverside Drive, travel north on Riverside Drive to Heards Ferry Road. Turn right on Heards Ferry Road and continue to Mount Vernon Highway. Turn right on Mount Vernon Highway and continue to Riverside Drive. This route will lead drivers to Riverside Drive south of the bridge closure. To get to I-285 eastbound, Fox Ridge Lane or Fair Oaks Manor, turn right on Riverside Drive.

For motorists exiting I-285 eastbound; motorists coming from Fair Oaks Manor, Fox Ridge or Kairos Church; or vehicles traveling north on Riverside Drive from inside the Perimeter:

To continue north on Riverside Drive, travel south on Riverside Drive to Mount Vernon Highway. Turn left onto Mount Vernon Highway. Continue on Mount Vernon Highway to Heards Ferry Road. Turn left onto Heards Ferry Road and continue to Riverside Drive. To take I-285 westbound or Coldstream Court, turn left onto Riverside Drive.