the tokuyama dam is a long and high rock-fill embankment dam with a clay core. the total structural volume of the dam is . the dam creates a reservoir with a capacity, surface area of and catchment area of . the dam will support two francis turbine-generators, one with a 130 mw capacity which will be located in an underground power station downstream. the second is an operational 23 mw generator and is located at the base of the dam. the installed capacity of both will be 153 mw. the power station will process a maximum of for power production.