The stretch of road that crosses Buford Dam will close for repairs Monday.
The project, which is being handled by the U.S. Army Corps of Engineers, is scheduled for completion Nov. 5.
Once the 2-mile stretch closes for the month, there will be no detours for the 10,000 motorists who travel the road daily.
To cross Lake Lanier, drivers will instead have to take Hwy. 20, to the south, or Hwy. 369, to the north.
The corps has estimated the closure will add between 15 to 30 minutes to travel times.
The development is the latest in a series of projects that has slowed traffic along the busy corridor this fall.
Forsyth County has been repaving a 2.6 miles of the road, from near the lake west to Sanders Road.
Crews also are remaking the intersection of Buford Dam and Samples/Lanier Beach South roads, adding turn lanes and straightening the severe angle of the crossing.
Once the corps’ project is complete in early November, Buford Dam Road motorists will have a break until February or March.
That’s when the next project likely will begin. The city of Cumming plans to widen the road between Hwy. 9 and Sanders Road.