Where's the dam gonna be? Middle/upper left ???
I'm not sure if I need one. The location is very flat with little change in elevation (perhaps a 5' change).
I don't own much land on the west (left in picture) side so if I had a dam and/or spillway it would have to be to the east (top in pic).
I have both "Just Add Water" and "Perfect Pond" books from the forum so I'll have to give the dam and spillway sections a re-read.