The southbound I-75 exit ramp at South Marietta Parkway will be intermittently closed overnight until early Saturday.

Crews will close the ramp as they work on the Northwest Corridor Express Lanes project, according to the Georgia Department of Transportation.

The ramp will be shut down from 9 p.m to 5 a.m. from Wednesday to Thursday, Thursday to Friday and Friday to Saturday.

Southbound drivers on South Marietta Parkway will be directed to stay on I-75 and take exit No. 261 for Delk Road and turn right. Then they’ll turn right onto Cobb Parkway to resume travel.

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An animation shows how the two reversible toll lanes would function for commuters.