The is a concrete arch-gravity dam on the Tadami River, southwest of Tadami in Fukushima Prefecture, Japan. The primary purpose of the dam is hydroelectric power generation and it supports a 182 MW power station. The power station contains two Kaplan turbine-generators. Unit 1 (95 MW) was commissioned on 20 November 1963 while Unit 2 (87 MW) was commissioned on 7 June 2003 as part of a power plant expansion project that included an additional 200 MW generator at Okutadami Dam upstream. The dam is tall and long. Its reservoir has a capacity of which is active (or "useful") for power generation. The reservoir has a catchment area of and surface area of . Of the two generators, Unit 1 has a maximum effective hydraulic head of and Unit 2 is afforded . The design flood discharge of the dam is and its service spillway is controlled by three tainter gates. See also List of power stations in Japan Tagokura Dam – located downstream References Dams in Fukushima Prefecture Hydroelectric power stations in Japan Arch-gravity dams Dams completed in 1963 Dams on the Tadami River Energy infrastructure completed in 1963 1963 establishments in Japan