The City Council voted 7-0 at its Wednesday meeting to add a second right turn lane on South Marietta Parkway.
The turn lane will be constructed on South Marietta Parkway — also known as State Route 120 — as drivers head west to turn toward Marietta, said Charlie Lanz, the city’s acting engineer.
The project, which will cost $381,000, will be paid for by the Georgia Department of Transportation.
“We’re managing the project, but it’s 100 percent funded by GDOT,” Lanz said.
The frequent traffic backups happening at the intersection spurred the city to make changes to it.
“It’s just to help improve traffic operations at that inter-section,” Lanz said. “It gets really backed up.”
He said the city keeps track of how its intersections are operating, and this one operates “poorly” because it is frequently congested.
“That’s one of our busiest intersections, and also one with a level of wrecks and a level of traffic that has to be addressed,” Marietta Mayor Steve Tumlin said.
Councilman Johnny Walker, who represents the area around the intersection, said he thinks the construction is needed because he often sees traffic backed up as drivers try to turn right, but said he hasn’t seen many wrecks in the area.
The mayor said all the traffic comes from those who live west of Whitlock Street, near the Powder Springs area, traveling east toward downtown Marietta.
“That’s where everyone is headed, out to I-75. So it gets really busy,” Tumlin said.
Traffic signals will also be installed as part of the approved project for the turn lanes to make the turn safer — a change from the yield signs in the right turn lane of the intersection, which has a red light camera.
Construction is expected to start in July, Lanz said. Once it begins, the new lane will be complete in 180 days or less.
During construction, Lanz said drivers will continue to be able to turn right.