26 feet at the dam is a lot of pressure for an earthen dam, however a 60' base and 30' topper is pretty stout. A few questions.
1) Did you add dirt(fill, topsoil rubble) or clay to make the damn bigger?
2) Did you compact the clay in 6" layers, for the new dam?
3) When you added to the dam; did you scarify (peel off the top of the original dam) and compact the existing dam.
4) What is the inside slope of the earthen dam? ex. 1:4 rises 1 foot for every 4 foot of run. Im coming up with probably about a 2:1 (very steep), however the backside may be steeper.
I will try to help in any way i can.
Last edited by BirdD@wg; 07/15/13 10:00 PM.
