Now that I am clear as mud on everything we have discussed, here are some other questions I have.
#1 Will there be any need for any type of spillway in the remote chance that we have heavy rain-don't laugh it used to rain down there four or five years ago!
#2 I think I understand how the artificial creeks and humps will be designed and I also hope to have several rock piles/condos along the "creeks" but how do I go about getting any hardwood in place? I envision digging them up, setting them aside, and then after all is done and before filling, re-planting-if you will-them in strategic locations. Does that have any merit or will that just open the door for leakage?
#1- A spillway is always a safe backup and it saves your dam. We have a pipe through all of our ponds to draw them down when the water is less than 3 feet above the top of the pipe. Make sure the pipe is installed correctly by tamping dirt correctly under and along the sides of the pipe and include anti-seep collar. A good pond builder will know how to do this.
#2- What hardwood trees do you have in mind? Do you want standing timber? There are many options. Just trying to figure out what exactly you have in mind.