Ga. 400 drivers face new route at McGinnis Ferry in south Forsyth

McGinnis Ferry Road is entering a summer of lane shifts just as Forsyth families move from school traffic to camp drop-offs, weekend errands and drives toward GA 400. The changing pattern is already affecting one of south Forsyth’s most important east-west connectors, especially for commuters and cross-county trips near the Johns Creek edge of the county.

County traffic notices said drivers can expect periodic single-lane closures and flagging on McGinnis Ferry Road between Sargent Road and Caney Creek. That stretch carries neighborhood traffic, school trips and steady movement toward the SR 400 corridor, so even short delays can ripple quickly through morning and afternoon routines.

The work is tied to the larger McGinnis Ferry interchange project at Ga. 400, which remains under construction. The Georgia Department of Transportation says the project is designed to widen the corridor and add auxiliary lanes, a long-term fix meant to handle the pressure that comes with south Forsyth’s growth and the volume of traffic feeding into the highway system.

The timing matters because the county’s summer calendar is already full of movement. With school out and more families on the road for camps, practices, shopping and weekend outings, McGinnis Ferry is likely to feel the strain beyond the traditional rush hours. County guidance says the impacts will continue for several weeks, with weekday and Saturday disruptions that could create delays even when the commute is otherwise lighter.

For drivers who rely on the corridor, the safest assumption is that the usual route may not be the fastest route. Extra time will be essential around the Sargent Road and Caney Creek segment, where lane changes and flagging can slow traffic without much warning. That is especially true for parents making repeated trips across south Forsyth or heading toward destinations in neighboring Johns Creek and along Ga. 400.

The message from the roadway is plain: McGinnis Ferry is still in transition, and the summer commute in south Forsyth will move around it.