I'll post a few pictures (if I can post photos correctly)to hopefully clear up some of the questions previously asked.
Picture looking from where water flows in (lower right corner). Water would need to raise several feet to back up onto anyone elses property as I'm still standing on mine taking the photo. Dam is in upper left corner.

Dam, overflow, breach,and water control device area (upper right). Note the hill water would need to flow up to escape, 4-5' deep on road surface.
