The 200-ton cutter head of the subway tunnel boring machine was delivered April 21. The MTA released video of construction crews lowering the cutter head into the 815-foot long launch box, on Second Avenue between East 92nd and 96th streets–to the sound of ambient music, for some reason.
(Video below the cut)
The launch box is where the machine will begin to carve out 7,700 feet of subway tunnel 56 feet below Second Avenue.
Once again, the Launch Box posts some fabulous photos of the process, one of which is here: