- The second phase of construction at 37th Street and Park Avenue to complete the relocation of utilities and construct sidewalk plenum and air shafts began in early January 2009. For more information on the work to be completed in this area, please click here. To learn about how a raise bore machine operates, please click here.
- The East Side Access Project is currently excavating tunnels approximately 120 feet beneath Manhattan streets. Two tunnel boring machines (TBMs) are being used, one manufactured by SELI and one manufactured by Robbins.
The two TBM's in Manhattan will make eight tunnel drives starting and ending at various points along the alignment. The first two tunnel drives, starting at 63rd Street and 2nd Avenue with the first ending at 43rd Street and the second ending at 37th Street, have been completed. The next set of drives will begin in early 2009, at approximately 49th Street, and all the Manhattan tunnels will be mined by 2010.
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