From Coast to Coast: Longest Bridges in the USA

3 min read

11 Jun 2023

The United States, with its vast and diverse landscape, is home to some of the world's most remarkable bridges. From coast to coast, these engineering marvels serve as vital transportation links, offering breathtaking views and playing a crucial role in connecting communities. In this exploration of the longest bridges in the USA, we will journey across the nation to marvel at these incredible feats of engineering.

1. Lake Pontchartrain Causeway, Louisiana: The Lake Pontchartrain Causeway in Louisiana holds the title for the longest continuous bridge over water in the world. Stretching an astounding 38.42 kilometers (23.87 miles) across Lake Pontchartrain, it connects the city of Metairie in the Greater New Orleans area to St. Tammany Parish on the Northshore. The bridge is an iconic symbol of the region and a vital transportation link.

2. Manchac Swamp Bridge, Louisiana: Another impressive Louisiana bridge, the Manchac Swamp Bridge, is part of Interstate 55 and spans the vast Manchac Swamp. With a length of 36.71 kilometers (22.81 miles), it is one of the longest bridges in the United States. Navigating this extensive expanse of wetlands, the bridge plays a crucial role in connecting communities and facilitating travel in the region.

3. Verrazzano-Narrows Bridge, New York: The Verrazzano-Narrows Bridge is a towering suspension bridge that connects the boroughs of Brooklyn and Staten Island in New York City. With a main span of 1,298 meters (4,260 feet), it ranks as one of the longest suspension bridges in the world. It offers stunning views of the New York Harbor and is a quintessential part of the city's skyline.

4. San Mateo-Hayward Bridge, California: The San Mateo-Hayward Bridge in California is a vital transportation link in the San Francisco Bay Area. With a total length of 11.265 kilometers (7 miles), it connects the cities of San Mateo and Hayward, facilitating the daily commute for thousands of residents and supporting regional economic activities.

5. Chesapeake Bay Bridge-Tunnel, Virginia: The Chesapeake Bay Bridge-Tunnel in Virginia is an engineering marvel that stretches 28.3 kilometers (17.6 miles) across the Chesapeake Bay. It combines bridges and tunnels to create a seamless transportation link, significantly reducing travel time between Virginia Beach and the Delmarva Peninsula.

6. San Francisco-Oakland Bay Bridge, California: The San Francisco-Oakland Bay Bridge is a complex of bridges that connects San Francisco and Oakland, California. The bridge system includes two major spans: the western span, known as the San Francisco-Oakland Bay Bridge, and the eastern span, the Bay Bridge's newer segment. The combined length of the two spans is approximately 14.5 kilometers (9 miles).

7. Evergreen Point Floating Bridge, Washington: The Evergreen Point Floating Bridge, also known as State Route 520 Bridge, stretches across Lake Washington, connecting Seattle and Medina, Washington. With a length of 7.529 kilometers (4.677 miles), it is the longest floating bridge in the world. The bridge is a critical transportation link in the Seattle metropolitan area.

8. Seven Mile Bridge, Florida: The Seven Mile Bridge is a picturesque bridge in the Florida Keys that connects the islands of Knight's Key and Little Duck Key. While not quite seven miles in length, it spans 10.887 kilometers (6.767 miles) over the turquoise waters of the Gulf of Mexico. The bridge offers breathtaking views of the Florida Keys and is a popular route for travelers.

9. Sagamore Bridge, Massachusetts: The Sagamore Bridge in Massachusetts is a historic truss bridge that spans the Cape Cod Canal, connecting the towns of Bourne and Sagamore. It has a total length of 2.9 kilometers (1.8 miles) and is a key transportation artery for the region, especially during the summer months when Cape Cod sees an influx of tourists.

10. Golden Gate Bridge, California: While not one of the longest in terms of total length, the Golden Gate Bridge in San Francisco is an iconic symbol of American engineering and architecture. Its main span stretches 1.28 kilometers (0.8 miles) across the Golden Gate Strait, connecting San Francisco to Marin County. It is recognized worldwide for its stunning Art Deco design and distinctive international orange color.

These longest bridges in the USA, spanning from Louisiana to California and beyond, showcase the nation's commitment to infrastructure development and connectivity. They are not only vital transportation links but also iconic landmarks that offer spectacular views and inspire awe. As engineers continue to push the boundaries of bridge design, we can expect even more remarkable structures that contribute to the nation's growth and progress.