Is it possible to sail under the bridge crossing from Trenton to Mt Desert Is? I know it gets . . . shallow, on either side, but with a 10 foot tide and a 30" draft, I can do that. I can't seem to find the height of the bridge. That, alone, should tell me that I'll being an idiot. Safe passage is probably about 35' off the water. I'm thinking that this is about as intelligent a passage as circumnavigating Mackworth Island in Casco Bay. Anybody?