I think you will need to anchor at pond edge, where gangway meets the dock, and end of dock furtherest in the water. In the water I used old tire filled with concrete, eye bolt in center, with chain crossed to oppsite side.

Concerte on ground may be Too big and start to sink that close to the water just due to weight. I think I would use post instead. Or just do the 8"x12" concrete beam with tpost.

Advantage to using a tire is you can roll on the dock to where you want it. I would not use a big truck tire. THe smaller 14" I used ended up about 180-200#

Last edited by BrianL; 03/15/18 10:35 AM.
1.8 acre pond with CNBG, RES, HSB, and LMB
Trophy Hunter feeder.