I take it you are wanting to make a swampy type area? That shallow I would think you will end up mostly with a weedy pond, which may be what you are looking for.
If you are, one suggestion I would make if watering wildlife is one main purpose, is to shift that deep area more to one side of the pond so there is some open water for them to drink. If you end up with thick weeds all the way around the open water, the only animals that might be able to get an easy drink might be alligators.
The other thing, if the water table is actually as high as you think it might be, you may not need to seal the pond with clay if water is coming up from the bottom.
Remember, if you have a high weed population along with a shallow BOW, it likely will dry out quickly during a drought. What you are wanting some of us had or have from a pond that is 40-50 years old and silted in. Most of us try to get rid of that situation rather than create it, but your goals may be different than most, and that is ok too.
Last edited by snrub; 12/16/13 05:29 PM.
