There is a dangerous attractive nuisance at the 550 Vanderbilt site. A door has been left open into the site approximately where the water main break was today, apparently.
The door gives entrance to the entire construction site. Immediately inside the door is a large pit. The workers on the 550 Vanderbilt building are protected from the pit by a warning sign and a streamer of sorts. The pit is readily accessible from the street, though.
See video: https://www.youtube.com/watch?v=vHbGzPW2FIs