Depending on the soil type, you can shoot for 3:1 slope until you get to around 6-7 foot water depth then increase it to 2:1 if possible.

I'm a little more aggressive than Bill C., I'd shoot for 15' depth as long as you were going to put a bottom diffusion aeration system in it.

In my personal pond, we renovated it and went down to 22' depth. (roughly 1 acre pond) Hurricane Ike rolled through before we got geotextile fabric down and washed 3' of sand down to the deepest part. Considering that we will bounce 4' or more in water level between wet and dry times of the year, that now 19' deep hole could be 15'. If I had only made it 10'-12' deep, that could have been 6'-8' max depth but I knew how the water level would change, that's why we went so deep.


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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).