Thanks EWest...that's what I thought too. That's why I came up with the across the trench solution. Just didn't know if that was the correct approach. I would have to cut into the existing dam about 10ft and repack a core tying to the existing core.

Dave - Why Topsoil? I've always read you want pure clay.

Gehajake - How would you go about getting the wide trench? Come cross wise and go down like a ramp to the bottom of the existing trench? DO that the length of the trench. Then rebuild the height for the dam in lifts. OR.....go in length wise to the trench and widen the trench?

My concern is that the pond will need to continue to drain so I dont create a wash out situation through the trench (or where it used to be once I am 1/2 way there) and the earth wont be workable. I dont see this as being a day or three kinda job.

Last edited by For the Family; 04/21/19 06:00 AM.
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