The Brooklyn-Battery Tunnel is the longest tunnel in New York. The Brooklyn-Battery Tunnel is the longest tunnel in New York. It is a marvel of engineering, stretching an impressive 9,117 feet beneath the bustling streets of New York City.
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Lincoln Tunnel connects midtown Manhattan to Weehawken New Jersey. Williamsburgh Bridge connects lower Manhattan and Brooklyn. Holland Tunnel connects lower Manhattan to New Jersey.
Technically called “Tunnel Street,” the three-block-long passage is the city's only underground street, according to 6sqft. It serves as a Broadway entrance to the 191st Street subway station, which, at 175 feet underground, is the deepest in the system.
At 24 kilometers or just over 15 miles in length, Norway's Lærdal Tunnel is the longest tunnel in the world. Assuming no traffic, it takes about 18 minutes to drive through this road tunnel if you're going the speed limit of 80 km/hr. Of course, traffic can definitely build up in the tunnel.
The longest tunnel in the U.S., the Delaware Aqueduct, was constructed to transport water – not vehicles – to the city of New York. In some parts of the 85-mile tunnel, its depth runs 2,500 feet below the surface and the maximum diameter reaches 19.5 feet.
There are subway lines that run under the water, via tunnels constructed through the ground beneath the water, but there are no lines running through the water. There are 14 underwater crossings the NYC subway does.
Derinkuyu, Cappadocia, TurkeyCappadocia city, located in central Turkey, is home to no less than 36 underground cities, and at a depth of approx. 85 m, Derinkuyu is the deepest.
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.