Mandeville, LA, United States
Lake Pontchartrain Causeway Bridge. The original 23.86 mile-long structure, which now carries the Southbound traffic, was designed by the firm of Palmer & Baker. When opened in 1956, the structure was the longest bridge in the world by more than 15 miles. In building the bridge, which took just four
teen months, assembly-line, mass-production methods were utilized for the first time in the construction of a bridge. It was designed to employ hundreds of identical, hollow concrete pilings, concrete
Listen to the audio guide for Brown plaque № 33241 Free on WIP — starts by itself when you arrive, even with the screen off