The first phase has opened of the reconstructed Mount Vernon Highway bridge over Ga. 400 in Sandy Springs, the Georgia Department of Transportation announced.

Demolition of the existing bridge is to take place in April, requiring multiple lane closures and some ramp closures on Ga. 400, GDOT said. The project, along Mount Vernon between Barfield Road and Crestline Parkway, is to accommodate new collector-distributor lanes for the rebuilt interchange of Ga. 400 and I-285 in the Perimeter area of North Fulton and DeKalb counties.

While work is underway, GDOT said, “some turns are being restricted to accommodate the traffic switch and other future alignments. Motorists should also adhere to the posted speed limit of 35 mph … (and) be aware of the men and women working in the area.”

The final configuration of the bridge will offer two eastbound lanes with an eight-foot-wide sidewalk, two westbound lanes with a six-foot-wide sidewalk, and a median. Information: https://bit.ly/3dQxUT8