The northbound flexible shoulder lane on State Route 400 near Alpharetta will close permanently in December from just south of the Webb Bridge Road overpass to Exit 11 at Windward Parkway.
The section, which is about three-quarters of a mile long, is closing to allow construction crews to advance work on the State Route 400 Express Lanes Project.
Beginning Dec. 13, the flex lane will no longer operate as an additional travel lane during peak morning and evening travel hours. Contractors with the Georgia Department of Transportation will remove existing flex lane signage and road striping, then install a temporary concrete barrier wall…