August 30, 1956 (southbound) May 10, 1969 (northbound)
Statistics
Daily traffic
43,000[1]
Toll
$6.00 (southbound)
Location
The Lake Pontchartrain Causeway (French: Chaussée du lac Pontchartrain), also known simply as The Causeway,[2] is a fixed link composed of two parallel bridges crossing Lake Pontchartrain in southeastern Louisiana, United States. The longer of the two bridges is 23.83 miles (38.35 km) long. The southern terminus of the causeway is in Metairie, Louisiana, and the northern terminus is in Mandeville, Louisiana. Both are in the New Orleans metropolitan area.
The Lake Pontchartrain Causeway holds the Guinness World Record for longest continuous span over water in the world. It previously was listed as longest bridge over water in the world; in 2011, in response to the opening of the Jiaozhou Bay Bridge in China, Guinness World Records created two categories for bridges over water: Lake Pontchartrain Causeway then became the longest bridge over water (continuous), while the Jiaozhou Bay Bridge became the longest bridge over water (aggregate).[3][4]
The bridges are supported by 9,500 concrete pilings.[5] The two bridges feature a bascule, which spans the navigation channel 8 miles (13 km) south of the north shore.
^Christine Harvey, New Orleans Times-Picayune. "Causeway lighting project cost double expectations". Archived from the original on 2007-03-15. Retrieved 2007-02-22.
^"The Causeway website". Retrieved March 21, 2013.
^"Longest bridge over water (continuous)". Guinness World Records. Retrieved 2019-02-01.
^"Longest bridge over water (aggregate length)". Guinness World Records. Retrieved 2019-02-01.
^"PILE RESTORATION OF THE LAKE PONTCHARTRAIN CAUSEWAY" (PDF). Archived from the original (PDF) on 2006-11-04. Retrieved 2008-12-19.
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