Mike,
I think your right the distance between the breakwater and the ferry dock is pretty close. Im not sure if its 100 yards or not. And I was wondering if they were going the have the gun boats that were in elliott bay last year inforcing the 100 yard zone around the navy ships doing that for the ferrys.It should be very interesting indeed like a giant game of musical chairs trying to avoid the ferry every time it heads accross the hole at the north end of the slag pile.