Hi, new poster to the site. I built a lake which is spring fed and ran into a local creek. Even during drought, the spillway still produces 1200 Gallons per Minute in over flow (measured). My spillway pipe is steel. The stack is 32 feet high and 4 feet in diameter which feeds into 142 feet of 3 feet steel horizontal pipe on grade. I want to be able to use electricity as well as sell back to the electric cooperative. I need to bypass during floods as the 18 acres has an emergency spillway and I don't want it to overflow. Anyone have ideas? I think this would be a great summer intern problem and would love to be able to use this as a way to give a college student or team the project to design. Any help is greatly appreciated!