So it seems like this should have an easy answer but I am conflicted. I called the city, and the guy in charge of the workers thought it MIGHT BE 3 short blasts of the horn. I looked do at a iPad app and it states that the Coast Guard rules state, '3 long, 4-6 seconds, blasts, and 1 short, 1 second, blast'. Thoughts?
I changed my dock location to up river to save myself 75% of my dock costs! but now I have the bridge to deal with

Thanks,
Steve