BBC Documentary - The Lake Pontchartrain Causeway - National Geographic

National Geographic Documentary Megastructures The Lake Pontchartrain Causeway - BBC Documentary History Lake Pontchartrain Causeway (Not to be confused with the Pontchartrain Expressway, a section of Interstate 10 and U.S. Route 90 Business.) The Lake Pontchartrain Causeway, sometimes only the Causeway,[2] is a causeway composed of two parallel bridges crossing Lake Pontchartrain in southern Louisiana, United States. The longer of the two bridges is miles ( km) long. The