NYC Tunnels Through Water Distribution, Trunk Main Work

The City's Rusty Underbelly: Besides connecting trunk and distribution mains, the city is also upgrading and relocating existing subsurface pipe and conduit.
Photo By Jeffrey Cox

The City's Rusty Underbelly: Besides connecting trunk and distribution mains, the city is also upgrading and relocating existing subsurface pipe and conduit.
Photo By Jeffrey Cox

New Route: The $6-billion Water Tunnel No. 3 project, which is expected to be completed around 2023, is the largest capital project ever undertaken by New York City.
Image Courtesy of DEP

The City's Rusty Underbelly: Besides connecting trunk and distribution mains, the city is also upgrading and relocating existing subsurface pipe and conduit.
Photo By Aileen Cho
The new tunnel will not replace the old tunnels, but it will allow for improvements of the water supply system as it will allow DEP to shut down and repair the old tunnels for the first time in history, Timbers says.
Water that will flow through Tunnel No. 3 will originate from New York state's Catskill/Delaware watersheds. The water will be disinfected at DEP's ultaviolet (UV) filtration facility in Mount Pleasant and Greenburgh, N.Y., which was completed in January. The 160,000-sq-ft facility, which can treat 2 billion gallons a day and uses gravity instead of pumps to convey water through the system, is the largest UV water treatment facility nationwide.
| MORE ON THE WAY* | |||
| Project | Location | Contract Value | Target Start Date |
|---|---|---|---|
| MED610B (Shaft 27B) | West 13th St. | $25 million | Spring 2014 |
| MED-607 (Shaft 32B) | 2nd Ave. at intersection of East 35th St. | $12 million | 2014 |
| MED-597 (Shaft 32B) | East 31st St. from 5th Ave. to 2nd Ave. | $7 million | TBA |
| QED-1008 | 54th St. between Flushing and Grand Ave., Maspeth, Queens | $2 million | Spring 2014 |
| *Distribution and Trunk Water Main Projects. Source: DDC. | |||
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