On the emergency spillway, I am not sure clear on what you are saying, but I assume it is a spot in the dam that is higher than the exit pipe and around 2 ft less than the top of the dam.... I could possibly do that on the far right side of the dam, as it was natural hillside and not man made. So I guess if I built the dam up all the way across except for a few feet on the right side of the exit pipe that could work..?
Yes, that�s the right idea�.........�. You might consult with your dirt guy about raising the dam 3' or 4'. A dozer can get it done in a few days, whereas using a tractor could take weeks.(depending on number of hours per day spent in the tractor seat) Maybe the dirt guy will feel guilty for not doing a proper build, and cut you a deal. From the pics, it certainly looks like he knows how to work dirt, and he should understand the need for some free board, and a spillway.
