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Lake Pontchartrain Causeway

Identification

Lake Pontchartrain Causeway
bridge
115854

Map

Facts

  • These twin spans crossing Lake Pontchartrain are considered to be the longest bridges in the world.
  • Takes its name from the Count de Pontchartrain who served as minister of finance for France's Louis XIV for whom Louisiana is named.
  • The spans consist of pre­stressed panels supported with over 9,000 concrete pilings.
  • The spans are 80 ­feet apart and are connected together with seven separate crossovers.
  • As a result of Hurricane Katrina on August 29, 2005, the spans would remain closed to all but emergency traffic until its reopening on October 14, 2005.
  • Pronounced like ponch-a-train.

Location

Metairie
Louisiana
U.S.A.
# Building Height Floors Building type Year Status
1 area-southern-entrance-to-the-worlds-longest-bridge Lake Pontchartrain Causeway Eastern Span - bridge 1969
2 Lake Pontchartrain Causeway Western Span - bridge 1956
existing
under construction
planned
unbuilt
demolished
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