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What is the longest bridge in U.S?

Updated: 9/17/2019
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9y ago

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The longest bridge in the United States is the Lake Ponchartrain Causeway in Louisiana. It is 23.87 miles long and opened in 1956 as a two lane bridge. A second bridge opened in 1969 so that there are now two side by side bridges carrying two lanes each for traffic in both directions.

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14y ago
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11y ago

The Lake Pontchartrain Causeway (just north of New Orleans, LA), which is nearly 24 miles long.
Lake Pontchartrain in Lousiana - that bridge is 126,024 feet long,

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