My dad and I had recently bought a caterpillar d7f dozer after a few months working it we decided to build a 3 acre pond by our self. after a few weeks of reading and studying we began by taking all the top soil out and we are now starting to build the dam my question is since this is the first time for both of us building one can some one show us what a dam looks like from the beginning so that we can have a better idea of what we're doing and how to do we know if we are making a 3:1 slope. Thank You.