I've been caught in this procession once in the past and, as the gentleman says, it's essentially impossible to get through.
Mr. Joe Wiener writes:
I am writing to ask you to notify your members about a large religious procession (between 1,000 and 2,000 people) that will be using the Brooklyn Bridge walkway this Friday morning (4/3/15) from about 10:45 a.m. to 12:30 p.m. There will be several thousand people walking from Brooklyn to Manhattan, and it will be impossible to even walk a bike through. Please use the Manhattan Bridge as an alternate.
Cyclists heading from Brooklyn to Manhattan should be okay up to 10:45 a.m. if they arrive at the bridge and the procession has not arrived yet. Cyclists heading from Manhattan to Brooklyn, however, should not enter the bike path unless they are sure they can reach the Brooklyn side stairs by 10:45. Please notify your members and forward this notice to other cycling organizations and message boards you may know of.
Thank you for your patience and cooperation.
-- Mr. Joe Wiener
Have fun and avoid processions,
New York City Recumbent Supply
The Innovation Works, Inc.
copyright 2013 Robert Matson