New Orleans History -- Lake Pontchartrain
Friday, July 12, 2024
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1956 - present ~~The Causeway


The Guiness Book of World Records notes-'The world's longest bridging is the second Lake Pontchartrain Causeway completed in 1969. Its length is 23.87 miles and it cost S30 million. (The second longest bridging is the first of the now twin-span Causeway, completed in 1956. It is 228 feet shorter.)

This photo is from a 4-page fold out brochure which contains maps and 2 other photos. The brochure measures 9' tall, 8' wide (folded), 9' tall, 16' wide unfolded. Printed in the mid 50s by the Greater New Orleans Expressway Commission.


When it opened in 1956, the Causeway may have been the world?s longest bridge, but it was a bridge to nowhere. It spanned Lake Pontchartrain to connect New Orleans to the mostly rural, sparsely populated St. Tammany Parish. But by 1969, a second span was needed. With western St. Tammany booming at the end of the century, thanks in part to the Causeway, the bridge is groaning under the pressure of the added trafflc.


Postcard showing both spans