Mine is pretty durn stable. Much more stable than Cecil's pier that is on pipes into the pond bottom that goes across his pond. 12'x8' end is supported by as many barrels as I could fit, 4'x16' walkway is supported by 8 barrels (I believe - I'd have to go out and count 'em or look in the thread that I made about building it).

www.hoosierpondpros.com

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3/4 to 1 1/4 ac pond LMB, SMB, PS, BG, RES, CC, YP, Bardello BG, (RBT & Blue Tilapia - seasonal).