Officials planning a new industrial park in Hall County have secured an engineer to design the infrastructure in the park and for its first tenant, the Georgia Poultry Laboratory. On Wednesday, the Gainesville-Hall County Development Authority signed two agreements with Rochester & Associates for engineering services at the planned Gateway Industrial Centre on Ga. 365. The agreements, according to Greater Hall Chamber of Commerce Executive Vice President for Economic Development Tim Evans, will guide the coming design of work for the preparation of the site of the new poultry lab and for the roads in the rest of the park.