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North America’s Longest Bridges

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Lake Pontchartrain Causeway longest bridges
Lake Pontchartrain Causeway
Photo: Markuskun

While some drivers view bridges as simply a way to get from one place to the next, many bridges are beloved for their architectural beauty and impressive designs. The following bridges are the longest bridges within North America, as of 2017, and they are definitely worth a visit.


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Chesapeake Bay Bridge-Tunnel, Virginia

This 79,200-foot-long tunnel crosses the Chesapeake Bay, taking drivers to and from the Virginia Beach area and the Eastern Shore of Virginia. It’s one of three bridge-tunnel systems in Hampton Roads, Virginia, and one of only 10 in the world.

Atchafalaya Basin Bridge, Louisiana

Also called the Louisiana Airborne Memorial Bridge, the bridge runs 96,100 feet between Baton Rouge and Lafayette. It’s also the interstate system’s second-longest bridge and has been open since 1973.

Manchac Swamp Bridge, Louisiana

The second Louisiana bridge on this list has a length of 120,440 feet. The twin concrete trestle bridge is roughly a third of Interstate 55’s total length, and it’s one of the longest bridges over water in the world.

Lake Pontchartrain Causeway, Louisiana

The longest bridge in North America is also located in Louisiana. At 126,122 feet long, it was once the longest bridge over water in the world, until it was surpassed in 2011. However, it is still the longest continuous bridge running over water in the world.


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The next time you head out on a road trip in the U.S., take the time to see one of these bridges or other picture-worthy bridges if you get the chance.

News Source: WorldAtlas