Since the city is full of traffic all the time, but less on the weekends, most construction work that has to take place on the streets, goes on at night or on a weekend. Most of all the crane work happens on the weekends, I'd say there are 20 or so cranes out each weekend, from small 40 ton cranes to 625 ton, which is the largest mobile crane in the city as of now. The work they do is manly lifting things like a/c units, and other things like that to the top of buildings.
I caught Bay Crane's LTM1350 and a small Tadano support crane on Park Pl, in lower Manhattan after seeing a ton of Bay's trailers scattered around some streets in the area. Some people think its crazy that they do not fence off the 'jobsite' I guess you can call it. I see pictures from other countries and even other states and there are fences around the 'site' and some even close down the whole street entirely. You can see in this picture all that was blocking the street was caution tape. Hey, I'm not complaining!
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