FEMA Surge Data For Upper Manhattan Marble Hill Area

  In the map below, I brought in FEMA Sea Surge data with my subway and railroad shape files.  Surprisingly, there is less area for concern than I thought would be the case.  Notice the loop shaped area of concern in orange-yellow right at the northern tip of Manhattan.  This was the original path of the Harlem River before it was diverted. This is just an experiment and please do not make any decisions based on this map.
Notice that only one surge height was generated by the map which is not the case in other locations around the city; particularly near the open ocean where many ranges are displayed.

Manhattan Streetcar Lines Except Third Avenue RWY System

This map, drawn by B. Linder, shows Manhattan Streetcar Lines except for the Third Avenue Railway System.  The map covers 99 Street to the Harlem River and is dated circa 1933.  Other streetcar lines continued to run in Manhattan to just after World War II.  Source:  B. Linder, New York Division ERA Bulletin, Vol. 30, Number 1, January 1987, P.2.