Mortenson’s off-site pre-casting has reduced wet concrete exposure, eliminating possible burns, slips or form collapses, and has reduced excavator lifts by 60%. Only one lift is needed per 20 ft of ...
The MTA is already about one-third of the way done with the biggest part of its demolition in the L train tunnel. Crews have removed 2,200 out of 6,800 feet of crumbling duct bank that houses ...