Hmm , thanks all. I think I am going to post some pics later today if i can get this rain to spot.

I want to use 6x6"s for my pier/pylons, maybe a concrete footing. I've seen some sweet prefab cc blocks with cut outs to set a 6x6 in them, and simply use a lag bolt and done. I can anchor my dock to my existing 3x3 dock and my railroad tie wall. hopefully some photos will explain this better =)

I'll check in later on.