Hole in The Wall

When I last visited Avenue C, and got pictures of the insides of the new shopping establishment under construction there, I noticed this hole in the wall on the side of the building:

Hole in the wall.

All sorts of speculation arose as to its reason for existing, but before I got around to posting about this, the answer appeared, in the form of…
an exhaust duct!

Exhaust duct.

…rising up to the top:

To the top.

I vote chicken and ribs!

#eastvillage #4thstreet #avenuec #constructionsites #exhaustducts