I-10 Bonnet Carré Spillway Bridge

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I-10 Bonnet Carré Spillway Bridge
Coordinates30°02′28″N 90°21′01″W / 30.0410°N 90.3502°W / 30.0410; -90.3502Coordinates: 30°02′28″N 90°21′01″W / 30.0410°N 90.3502°W / 30.0410; -90.3502
Carries4 lanes of I-10
CrossesBonnet Carré Spillway, Lake Pontchartrain and LaBranche Wetlands
LocaleSt. Charles Parish, St. John the Baptist Parish, Jefferson Parish
Maintained byLA DOTD
Total length58,077 feet (17,702 m)
Width45 feet (14 m)

The I-10 Bonnet Carré Spillway Bridge is a twin concrete trestle bridge in the U.S. state of Louisiana.[1] With a total length of 58,077 feet (17,702 m; 10.9994 mi), it is one of the longest bridges in the world.

The bridge carries Interstate 10 over the Bonnet Carré Spillway, Lake Pontchartrain, and LaBranche Wetlands in St. Charles Parish and a portion of St. John the Baptist and Jefferson Parishes. The bridge opened in 1972.[2]

See also[edit]


  1. ^ "Top 10 Longest Bridges in the United States". listosaur.com. Retrieved 2014-03-28.
  2. ^ "Interstate 10 West - St. Charles Parish to Ascension Parish". aaroads.com. Retrieved 2014-03-28.

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