Too much $$ to move that clay and overburden. We are going out with the level, rod, and tape tomorrow, weather permitting, and survey out the other site next to the existing pond, on the east side. We know we can go down there at least six feet and still be in solid clay that looks like brick clay. If the site will allow a five foot tall foot dam in addition, then we might get a nine foot deep pond about 90 x 100 feet. Just speculating until we lay it out with level and tape measure.
I will keep the forum posted if many would be interested in the building of such a small pond.

Edit: We laid it out with the level, rod, and tape. It works out to about a 95 ft x 130 ft oval. The dam will only be about 5 feet high at highest point, allowing for two feet of freeboard, but very wide and probably 6:1 or better slope on the back side, average height about three feet. Mostly be a dug out pond. We want the dam to be easy to mow.

Here's a conception of what it should look like. The new pond is highlighted to the right of the existing ponds. The black lines are the overflow spillway paths.
Attachments
Ponds2.jpg

Last edited by John F; 12/01/16 08:54 PM. Reason: added image