Pond Boss Forums INTRO Questions & Observations Why so deep?

Here's a few more facts for this mix.
Your pond needs to be deep enough for water storage.
It needs to be deep enough to accomplish your mission. For fish, 8-10 feet is deep enough, as fish inhabit down to about 6 feet most of the year.
If you want to irrigate or otherwise use water to be removed, make it deeper.
It can be deeper than 10 feet, if you need the depth to gain the soil for your dam.
It needs to be deep enough to manage water during excessive rains. That means the "freeboard" from water level to top of dam should be considered, based on average annual rainfall.
The bigger your watershed, the deeper the lake.
The less dirt disturbed peripherally, the better your lake bottom will be.
So, don't dig deep, unless you need the dirt elsewhere, or your watershed is big, or you want to irrigate.