Description HGA provided structural engineering services for the Corvaglia Closures USA facility located in Newnan, GA. Corvaglia Closures is an international company and is the leading manufacturer of plastic bottle caps. Their new facility was designed to accommodate the production and warehousing of product. The warehousing area contains 12 dock positions, and the production area was designed for heavy process loads, a process mezzanine, and a 10-ton crane bay. The project included 110,000 sq. ft of new construction.