Council Grove Dam is a rolled earth-fill embankment dam that stands above the streambed and long. At its crest, the dam has an elevation of . An uncontrolled, wide spillway is located at the southwest end of the dam. It has a maximum flow capacity of . Additional outlet works include a wide conduit and a wide low-flow outlet. At the top of the flood control pool, these outlet works have a flow capacity of . The Neosho River channel below the dam has a capacity of .
