Rangersedge,
It's gota be a drag to drain it after finally getting it full
but I'm sure with all thought & foresight you've given this lake it's gonna be the envy of pond owners
I have a sneaky feeling you won't be through working on it even when you think you're finished. If you're like me there'll always be something else you'll want to do.
Did you ever get an answer on raising the spillway? I would think it would have alot to do with the amount of watershed you have. I don't know the numbers but if lake size matches watershed + stream input then I would think 2ft of freeboard would be fine.
