Tom,
Scroll down the topics and you will see many posts regarding spillway systems.
You may want to take a look a siphon system with an emergency spillway.
By the way, when I �visited� Saipan and Guam many moons ago, we fished at low tide with hand grenades....
When you look out over the blue Pacific in the direction of Oklahoma dream BIG � mine came true...
Good luck,
George Glazener
N.E. Texas � acre and 2 acre ponds
