Forgot to add one thing I raised the level of the pond 1 ft after I built it and the dock was in the water. No problem I just drilled three holes in the concrete in the pilings with a masonary drill used pvc couplings and a 12 inch piece of pvc to make an extension glued rebar in the holes with foundation glue put on the extensions drilled my mounting holes and filled with concrete. I then jacked the pier up one piling at a time to the new holes. Still as sturdy as before.
Bob
