Hey BirdD@wg, sorry for the delay...it's been pretty hectic! I agree with the slop, the front side of the dam is pretty close to straight up and down for the 1st 10 feet or so only because of the water in the pond while constructing it. I know I should have pumped it back out, but it would have taken me days and by the time it would have dried it would have been January.....Hence the reason for the huge concrete slabs we put down. So far so good, but yea I agree eventually we will probably see slipping. I couldn't get my hands on a sheeps foot....wish I could have...packed with my JD 650 dozer. It could be the old root systems....I really wish I would have tore the old dam out entirely and started over....but as the saying goes hindsights always 20/20. There were large amounts of trees on the dam, so much so you couldn't hardly see it. I don't know sir, for this year I'm going to keep pumping and keep my fingers crossed. It doesn't leak much, I have to run the pump a little less this year than last. My pump runs about 15,000 gallons for about an hour and a half. I half to run the pump about twice a week to maintain full pool. Last year I nearly had to run it everyday after it was full, but it was also virgin soil with soaking in etc....we shall see! Thanks again!