Greetings and welcome to the forum, Nate from Nebraska.

I am truly lousy at reading topo maps (more at home with Topo Gigio), but it looks like there is less than 10 feet of elevation drop across the prospective pond basin (?). If I'm correct, the pond may need to be a mix of impounded and excavated (I have a pond like that).

One potential problem I see is that the water would back up pretty close to the property line (I have a pond like that, too). You will want to ensure that the water level rise when the pond goes up to the emergency spillway doesn't cause your neighbor's property to get wet regularly.


"Live like you'll die tomorrow, but manage your grass like you'll live forever."
-S. M. Stirling
[Linked Image from i.pinimg.com]