Today was a big day for the Second Avenue Subway project: the enormous tunnel boring machine that will dig the "phase one" tunnel from 92nd to 63rd Street was switched on for the first time. (It arrived at the location last month.) We stopped by the site this morning to take some pictures of the current site and the sandhogs who are working down there. And after the jump, some video of the boring machine beginning to turn.
Tunnel Excavation Begins at the Second Avenue Subway
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