Brettski,
Don't you think that the upward force would create a suction causing a wall collapse in the void? The most affected piling is 30' from shore. Will a boom arm from a backhoe reach that far?
Does a portable pile driver that can be assembled on top of the pole exist?
My usual experience in conundrums like this is to completely over-react, prepare bringing in the National Guard, and keep Haliburton on hold on the 2nd line. Then, when things calm down, the 12 year old kid from next door says "why don't ya try pushin' 'em back down". I tell him to "shut up and scram, can't ya see we got brain surgeons workin' here". Then, after all the drilling and pile driving rigs are set up and the crew is about ready to start, one of the double overtime union guys has to stand up on top of one of the poles to get up high enough to hook a cable onto the 80 foot crane....and his weight pushes the pole back down to where it started.
