Thanks for the input, I was going to put these on the 20' x 100' gravel we put on top of the clay. I have pallets at the dam already but was going to keep the nails out of the pond for possibility of future swimming but I can do that. I have some cinder blocks but thought these might serve same purpose. I will just put these rocks on the shoreline. I will just need to get some mesh and 1-3" rock quick since water is getting close to where I need to put them.
