Brown plaque № 33240
Mandeville, LA, United States
Lake Pontchartrain Causeway. At 23.87 miles long, the Causeway is the world's longest bridge over water. The first span was completed in August 1956. Due to increased traffic, a second span opened in May 1969. The Causeway piloted major construction of prefabricated, prestressed concrete bridges in
the United States. It is supported by more than 9,000 concrete pilings. Construction of the Causeway expanded the Greater New Orleans area to include the north shore of Lake Pontchartrain.
Listen to the audio guide for Brown plaque № 33240 Free on WIP — starts by itself when you arrive, even with the screen off