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The tunnel will serve as a backup to Water Tunnel No. 1, completed in 1917, and Water Tunnel No. 2, completed in 1936. [1] Water Tunnel No. 3 is the largest capital construction project in New York City history. [2] Construction began in 1970. [3]
Opened in 1927, the Holland Tunnel was the world's first mechanically ventilated underwater vehicular tunnel. The Brooklyn Bridge , Williamsburg Bridge , George Washington Bridge , and Verrazzano-Narrows Bridge were the world's longest suspension bridges when opened in 1883, [ 2 ] 1903, [ 3 ] 1931, [ 4 ] and 1964 [ 5 ] respectively.
New York State, United States 137,000 m (85.128 mi) 1945 4.1 m in diameter (13.2 m 2). New York City's main water supply tunnel. Water supply Päijänne Water Tunnel: Southern Finland, Finland 120,000 m (74.565 mi) 1982 16 m 2 cross section. Main water supply tunnel for the Helsinki metropolitan area in southern Finland, drilled through solid rock.
New York City broke ground this week on a $1.9 billion tunnel project that will improve the water supply system in NYC and Westchester. Two-mile tunnel from Kensico Reservoir will be largest in ...
Since the Brooklyn–Manhattan tunnel project would take longer, it and other New York City highway projects were ineligible for PWA funding. [47] In January 1936, the New York State Legislature created the New York City Tunnel Authority to oversee the construction of a tunnel between Midtown Manhattan and Queens.
New York City Subway tunnels: Fort George Tunnel, IRT Broadway–Seventh Avenue Line (1 train), 2 miles of rock tunnel from 157th Street to Dyckman Street, the second-longest two-track tunnel in the country (after the Hoosac Tunnel) when completed in 1906. 14th Street Tunnel, BMT Canarsie Line (L train) under East River between Manhattan and ...
It took six years to complete the 23.5-mile Channel Tunnel, and if a transatlantic tunnel is constructed at the same pace, the underwater marvel would take an astonishing 782 years, according to ...
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 .