Pond Boss Forums INTRO Questions & Observations Keeping fish from escaping during floods?

The emergency spillway on this pond is roughly 2' above normal full pool. I have only had water use the emergency spillway once, when it might have been 3" deep there. (The exit from the drain box is 8" double-walled corrugated black plastic, which comes in 20' sections with a single-layer plastic sleeve on one end to slide the next piece of pipe into. When originally installed, we left the sleeve on the end inside the drain box and a heavy rain event collapsed it about 2/3 of the way, letting much less water enter the 8" pipe. After that, I cut the sleeve off. This is the only time the E-spillway was reached; I don't think the pond has gone much over a foot above full pool since then.)