Lake Pontchartrain Causeway

Each weekday over 30,000 cars cross Lake Pontchartrain on the longest bridge in the world, The Lake Pontchartrain Causeway. The most familiar part of the system is the 24-mile long bridge which consists of two, 2-lane spans running parallel across Lake Pontchartrain connecting Jefferson Parish on the south shore at Metairie and St. Tammany Parish on the north shore at Mandeville.

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