 In December 2008, jurisdiction of US 322 from the Woolwich–Harrison township line to the Route 55 interchange and a segment within Glassboro was transferred from the state highway agency, the New Jersey Department of Transportation, to Gloucester County.Construction of a bypass around Mullica Hill began in December 2010 in order to relieve severe traffic congestion through the town.The route originally went through the town's historical district, where it briefly joined Route 45.