Does the subway go under the East River?

The tubes descend 91 to 95 feet (28 to 29 m) below the mean high water level of the East River, with a maximum gradient of 3.1 percent. During the tunnel's construction, a house at 58 Joralemon Street in Brooklyn was converted into a ventilation building and emergency exit.



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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.

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The four lines under the river are numbered south to north, lines 1 and 2 running beneath 32nd Street and Lines 3 and 4 under 33rd Street.

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Both tunnels were 5,650 feet (1,722 m) long at a maximum depth of 97 feet (30 m) below the river. The diameter of each tube was 15 feet and 3 inches (4.6 m).

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The Holland Tunnel is a vehicular tunnel under the Hudson River that connects Hudson Square and Lower Manhattan in New York City in the east to Jersey City, New Jersey in the west. The tunnel is operated by the Port Authority of New York and New Jersey and carries Interstate 78.

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William Parsons, the project's chief engineer, used a variety of techniques for underwater digging. Sometimes hydraulic shields were used; other times methods were improvised, like digging a trench in the riverbed, then sinking the tunnel roof down on top of it.

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The twin lane East River Mountain Tunnel is 5,400 feet long and the Big Walker Mountain Tunnel, also twin lanes, is more than 4,200 feet in length. Changing lanes is permitted in both tunnels.

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The Brooklyn–Battery Tunnel, officially the Hugh L. Carey Tunnel and commonly referred to as the Battery Tunnel or Battery Park Tunnel, is a tolled tunnel in New York City that connects Red Hook in Brooklyn with the Battery in Manhattan.

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Nicholas Avenue and 191st Street in the Washington Heights section of Manhattan, it is served by the 1 train at all times. It is the deepest station in the New York City Subway system at about 173 feet (53 m) below street level.

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Many of the disused subway stations and tunnels running under NYC are closed to the public for safety reasons, but there are still ways to see them. In some cases, you can catch glimpses of disused subway tunnels or subway platforms while riding past on currently operating lines.

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In addition to the 665 miles of active subway tracks running beneath the city, the concrete hides an entire world of secret tunnels and subterranean spaces. If you dare to venture where the sun doesn't shine, some of these hidden worlds are open to explore on guided tours. Why does New York City have secret tunnels?

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