I apologize for such a late reply guys. I was thinking once someone reply to this thread I will receive an email. I will use galvanized pipes and tommy docks brackets for the 2x6 or 2x8. Of course I will use pressure treated wood. Pipes will be driven in as much as I will be able to go. So I'm thinking to divide the distance into 3 sections. So... 4 pipes will be installed in the pond between both pond edges.
I was thinking about floating bridge but like the stationary idea better. The support posts I'm planning to drill thru them instead of just relaying on side bolt pressure to keep it from sliding down. This will be done of course after I level everything.