Aug 30, 1956 CE: Lake Pontchartrain Causeway Opens

Aug 30, 1956 CE: Lake Pontchartrain Causeway Opens

On August 30, 1956, the Lake Pontchartrain Causeway, the world’s longest bridge over water, opened outside New Orleans, Louisiana.


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Engineering, Geography, Physical Geography

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On August 30, 1956, the Lake Pontchartrain Causeway opened. The Lake Pontchartrain Causeway is one of the longest bridges in the world. It is 38 kilometers (24 miles) long. On the south end of the Lake Pontchartrain Causeway is the big city of New Orleans, Louisiana. On the north end is the smaller town of Mandeville, Louisiana. More than 40,000 cars drive over the Lake Pontchartrain Causeway every day.

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National Geographic Society
National Geographic Society
Last Updated

October 19, 2023

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