Without pumping you can only capture runoff that is above the elevation of your pond full pool level. Unless you can figure out how to run water up hill.

If you can make a terrace at any elevation above that level to capture the water and bring it into the pond before it gets to the area it is flooding, that would be one approach.

I did such a terrace to capture about ten additional acres of runoff for my main pond.

If your wrap around dam is above the fool pool level where the water needs to come in, you can cut the dam down to that level but you need to make sure the terrace has all the characteristics of the dam where it enters as water will back up agajnst it during heavy rains when the pond is temporarily above full pool. So the lower portion of any terrace cutting into the dam needs to have the same strucural integrity of the dam.

Easier to show than explain in words.

Last edited by snrub; 10/20/17 01:37 PM.
John

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