Crews will close a Ga. 400 ramp at Interstate 285 for a few nights as part of a massive overhaul of the interchange.

The southbound Ga. 400 ramp to I-285 westbound will be closed from 9 p.m. to 5 a.m. each night until Friday to let crews build a bridge, according to the Georgia Department of Transportation.

Rainy weather might affect closures, GDOT said.

READ | $5.7M project near Ga. 400 in Fulton to start Thursday, last 18 months

Drivers on Ga. 400 southbound should exit at Glenridge Connector (exit No. 3), then exit to Ga. 400 northbound then exit at I-285 westbound (exit No. 4B).

This is part of the nearly $800 million remake of the interchange.

The southbound Ga. 400 ramp to I-285 westbound will be closed from 9 p.m. to 5 a.m. each night until Friday to let crews build a bridge, according to the Georgia Department of Transportation.

Credit: Georgia Department of Transportation

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Credit: Georgia Department of Transportation

Previously reported as one of the biggest highway projects in Georgia history, it entails: "new I-285 interchanges at I-20 east and west of Atlanta, new Ga. 400 express lanes from I-285 to McGinnis Ferry Road and truck-only lanes on northbound I-75 from McDonough to I-475."

Crews broke ground on the project in late 2016 and are expected to finish in 2020.

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