We did it this last summer in a 36' trawler with an air draft of 19.5'
without a problem, although the section west of the south end of the
Oswego requires that you get down to 15.5' or something like that.
Bring lots of fenders, as you don't always get to tie up on the side you
want, a big deal in a single screw trawler. Don't try it singlehanded.

The Hudson is way cool, especially going into NYC

Capt. Jeff