 In 1927, Route 18S became Route 48 and Route 42 was designated along the road between Williamstown and McKee City.US 322 was extended to New Jersey in 1936, running from a ferry dock on the Delaware River in Bridgeport east to Williamstown, where it followed Route 42 and U.S. Route 40/Route 48 to Atlantic City.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.