Monday, June 04, 2012

Inside the Second Avenue Subway Construction Site

A video of the construction process, including the tunnel boring machines that are critical to the effort.

It's interesting that they are using one machine, tunneling one bore, and then pulling the machine back to run the second tunnel. That seems to be extremely time consuming and much more costly than had they run two machines simultaneously and allowed the machines to continue running south towards Hanover Square (the 2d Avenue Line's ultimate terminus should it ever be fully funded).

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