Tunnel boring machine
Nora Stanton Blatch Deforest Barney was the first woman in the U.S. to receive a civil engineering degree.
Updated: Mar 31, 2017 3:51 PM
Looking south from the 7-story stairwell leading into the current site,
Updated: Feb 7, 2011 1:11 PM
Earlier this week the 200-ton "cutter head" for the Second Avenue subway's
Updated: Apr 23, 2010 6:26 PM