Matsuo Dam is a gravity dam located in Miyazaki Prefecture in Japan. The dam is used for flood control and power production. The catchment area of the dam is 304.1 km2. The dam impounds about 195 ha of land when full and can store 45202 thousand cubic meters of water. The construction of the dam was started on 1939 and completed in 1951. See also List of dams in Japan References Dams in Miyazaki Prefecture