 In 1938, Route 55 was legislated along US 40/US 322 in Atlantic City while in 1939, US 322 between the ferry dock and Route 44 (now US 130) became Route S44 and the route between there and Route 42 became Route 51.In 1953, the state highway designations were removed from US 322.After the Commodore Barry Bridge opened in 1974, the old approach to the ferry dock became Route 324.