Pond Boss Forums STOCKING A NEW POND Raising Forage and Bait Flood control hole used as part time fathead pond

i was thinking of constructing a small 20'X20' foot hole about 1 ft slopeing down to a max of 3 feet. it would be using it as a area for my creek to slow down during floods before it enters my pond about 500yds away. The design would be relitivly simple. I need a bridge so i would use the excavated dirt to construst a dam that has a pipe running through it at stream level the pipe would be probally 6" in diameter just larger then the average stream flow needs. the dam/bridge would only hold water back when the stream was above average and more H2O was flowing then the pipe could accomedate. the dam would span a narrow area on my stream 4 feet wide with 3 foot banks the dam would be level with the banks. the hole would be located on the bank a little upstream from the dam/bridge and would be fed with with water only when the stream is blocked enough to raise the water level up to the pipe that feeds the pond. I know this design will work as i have made slightly smaller models in years past. the question i have is will fatheads spawn in these conditions or has anyone ever done anything like this?