Lake Ponchartrain Causeway, Louisiana In fact, the world's longest bridge is a continuous span beam bridge. Almost 24 miles long, the Lake Ponchartrain Causeway consists of two, two-lane sections ...

The Lake Pontchartrain Causeway in Louisiana, USA, is a marvel of modern engineering, spanning the vast Lake Pontchartrain. Connecting Metairie and Mandeville, it is the longest continuous bridge over ...