Forty Six in Red Hook

There's a screw loose in pen and ink drawing number 46, of the corner of Delavan and Dwight Streets in Brooklyn, early in the morning.  This area is known as Red Hook, an area that I want to explore further.  When I looked at the street level Google maps, taken last year, for this corner, the stop sign was still securely fastened.  That is snow on the sidewalk.  Google maps didn't have any snow.