3 to 1 is tricky to mow but doable. 4 to 1 is much more comfortable.
2 to 1 is tough to work and impossible to pack the face, although the lifts building the dam up can be properly compacted so doesnt have to be a big issue.
I personally would want the 3 to one on the water side and at least 3 ro 1 on the dry side with any extra spoils to make it less steep than that if possible. 4 to 1 much better to keep the trees and overgrowth off.
Working a 45 degree slope is no fun. A dozer will barely climb up it, let alone push anything. Get sideways on it and you might end up dead. That complicates further pond management.
Edit: just reread your post. Those steep slopes could be made to work on that small of pond. But 2 to 1 on the inside is going to be much more prone to sloughing off and dam erosion so may be counterproductive in the long run.
Not an expert here. But I do have some practical experience.
Last edited by snrub; 03/13/19 07:31 AM.
