Infrastructure Porn: Sandhogs Break Through And Join Tunnel Between Grand Central And Queens
5 photos
<p>"This shows the five-foot by five-foot hole-through created today."</p>
Gothamist
<p>"This machine is used to excavate soil that has been frozen for stability."</p>
Gothamist
<p>"This shows the 5 foot by 5 foot hole-through created today."</p>
Gothamist
<p>"The work took place in the tunnel drift at left."</p>
Gothamist