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All new Ga. 400 southbound lanes to open Wednesday
Ga. 400

More than three years after the beginning of a project to add to new lanes in each direction on Ga. 400, final sections of the southbound lane will open this week.

In a news release on Monday afternoon, officials with the Georgia Department of Transportation announced the new southbound lanes of Ga. 400 between Browns Bridge Road (Hwy. 369) and Peachtree Parkway (Hwy. 141) will be open to drivers starting at 5 a.m. on Wednesday.

The project to build the new lanes began in April 2015 and was handled by C.W. Matthews Contracting. 

In December 2017, the new southbound lane between Exits 13 (Peachtree Parkway) and 12 (McFarland Parkway) opened to the public.

In June of that year, the third northbound lane – except for a now-opened portion of a bridge over Lake Lanier – was opened.

The total cost of the project is $57.6 million, with Forsyth County contributing $34.5 million from a transportation bond approved by voters in 2014.

The final completion date of the project is Oct. 31. Work replacing concrete sections and concrete grinding still need to be done. Weeknight and weekend lay closures will be required as that work is done.

The new lanes are one of several new projects coming to Ga. 400.

Hwy. 369 will see more work as a new “partial cloverleaf” interchange is being added at the intersection with Ga. 400 to create Exit 18.

In June, $184 million in Infrastructure for Rebuilding America, or INFRA, grant funding was given to the state to add two express lanes on each side of Ga. 400 from the North Springs Marta Station in Sandy Springs to McGinnis Ferry Road and one express lane in each direction from McGinnis Ferry to McFarland Parkway.

Previously, GDOT officials said construction for the express lanes is slated to begin in 2021 and be completed by 2024.