How deep is the water above the Lincoln Tunnel?

Designed by Ole Singstad, the tunnel was built by shield-and-compressed-air methods to hold back the outside water pressure. The tunnel consists of three vehicular tubes, each of which carries two lanes of traffic. It is about 1.5 miles (2.4 km) long and lies 97 feet (30 metres) below the river's surface.



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The Lincoln Tunnel — with a maximum depth of 97 feet beneath the Hudson River — is a talented manufacturer of mishaps.

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“Its skeletal structure is made up of hundreds of massive 21-ton iron rings that were bolted together. In addition, the interior of the rings is encased in concrete, thereby sealing out the Hudson River.”

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Motorized vehicles only. No pedestrian or bicycle access. Operators of overweight or over-dimensional cargo, or to lead a convoy across the Lincoln Tunnel, must contact the 24-hour Communications Desk at (201) 617-8115 prior to their trip for approval.

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First, it's important to remember that the subway tunnel is built under the riverbed, not just in the river—so what immediately surrounds the tunnel isn't water but some 25 feet of soil.

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“The first infrastructures of this type were built at the end of the 19th century, and at present there are nearly 200 underwater tunnels built worldwide. Although some are used for water and electricity supply, most are used to house road or rail connections.

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The Laerdal Tunnel in western Norway is the longest road tunnel in the world. It takes about 20 minutes to pass through the tunnel. Brightly colored lights placed every six kilometers help drivers stay alert.

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The Lincoln Tunnel is a 1.5-mile long tunnel under the Hudson River, connecting Weehawken, New Jersey and the borough of Manhattan at West Thirty-Ninth Street in New York City. With a traffic flow of approximately 21 million vehicles annually, it is the busiest vehicular tunnel in the world.

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World's longest railway tunnel, Gotthard Base Tunnel, Switzerland.

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1. -The Laerdal tunnel. With its 24.5 kilometers, Laerdal tunnel is the longest in the world, traversing several mountainous formations between Laerdal and Aurland, in western Norway.

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