So Which Are the 21 Bridges?

I have lived in New York City for about ten years but I can only recall like 7 bridges. With the tunnels, about 14 ways out of Manhattan. Can anyone add to the ones I mention below? These are the ones I used to travel.

Manhattan Bridge Brooklyn Bridge
Williamsburg Bridge 59th Street Bridge
Triborough George Washington Bridge
3rd St Bridge Pedestrian Bridge near Triborough
Battery Tunnel Holland Tunnel
Lincoln Tunnel Midtown Tunnel

Nothing like looking at Google Maps! Reminded me of some I did know but never used, and found others I never heard from.

Broadway Bridge University Heights Bridge
Second Washington Bridge Willis Ave Bridge
Madison Ave Bridge Harlem River Bridge
Macombs Dam Bridge Alexander Hamilton Bridge
High Bridge

Stand corrected. Learn something new everyday. There are 21 crossings between Manhattan, The Bronx, Queens, Brooklyn, and New Jersey. Just now I realized that the George Washington Bridge and the Washington Bridge are really two different bridges!