New York City Water Tunnel No. 3

New York City Water Tunnel No. 3 is a water-supply tunnel forming part of the New York City water supply system. It is being built by the New York City Department of Environmental Protection (NYCDEP) to provide New York City with a third connection to its upstate water supply. 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] Portions of the tunnel were placed into service in 1998 and 2013 and the remaining sections are expected to be complete by 2032.[4][5]

The complete tunnel will be more than 60 miles (97 km) long, travel 500 feet (150 m) below street level in sections, and will cost over $6 billion.[4]

  1. ^ Cite error: The named reference delay was invoked but never defined (see the help page).
  2. ^ Flegenheimer, Matt (October 16, 2013). "After Decades, a Water Tunnel Can Now Serve All of Manhattan". The New York Times.
  3. ^ Chan, Sewell (August 10, 2006). "Tunnelers Hit Something Big: A Milestone". The New York Times. It is the biggest public works project in New York City's history: a $6 billion water tunnel that has claimed 24 lives, endured under six mayors and survived three city fiscal crises, along with the falling and rising fortunes of the metropolis above it. ...
  4. ^ a b Kensinger, Nathan (April 22, 2021). "NYC's Giant Water Tunnel Begins Work On Final Shafts, Following 50 Years Of Construction". The Gothamist. Retrieved August 11, 2021.
  5. ^ "A Practical Perspective in Building Resilience into Urban Water Management by Commissioner Rohit T. Aggarwala". NYCDEP. September 20, 2022.