The Upper Narrows Near Bay Ridge - Sunset Park Brooklyn

In the map below, I used ARCGIS to create a map slightly north of the previous map.  I choose this location because from some drawings that I saw at Bob Diamond's website, the proposed rapid transit tunnel from Brooklyn to Staten Island would have been is this area and not further south at the present site of the Narrows Bridge.  The Hudson River contour map comes from a New York State Hudson River site.  The street map comes from Bytes of the Big Apple.  The depths are in meters.    I wanted to show the depths that had to be considered in the 1920's (if the floor of the bay is the same today, I do not know) in building a cross bay tunnel.  If the BMT reached Staten Island in the 1920's or 1930's, Staten Island would look very different today.