After months of delay, developers of a proposed 476-acre mixed-use development in Northeast Hall County finally got the nod they were looking for Thursday night. The Hall County Board of Commissioners unanimously approved the residential and commercial project slotted for 3240 Chiplan Road, on the east side of Ga. 365 near the Gateway Industrial Centre, setting the stage for the county’s latest boom-or-bust cycle. “We believe that this project will be a critical complement to the Gateway Industrial Centre and will provide much needed services to the area — shopping and restaurants and housing — to support the increased jobs and visitors there,” said developer Patrick Clark, owner of Barker Street LLC. The project had been tabled since December because the area lacked wastewater infrastructure, and county officials were hesitant to greenlight a project that would leave the development cut off from proper sewer treatment facilities.