where is the longest bridge in the united states located
Lake Pontchartrain Causeway The Lake Pontchartrain Causeway, sometimes only the Causeway,[2] is a fixed link composed of two parallel bridges crossing Lake Pontchartrain in southern Louisiana, United States. The longer of the two bridges is 23.83 miles (38.35Â km) long. The southern terminus of the Causeway is in Metairie, Louisiana, a suburb of New Orleans. The northern terminus is at Mandeville, Louisiana.