United States Civil Administration of the Ryukyu Islands
Under the Ryukyu Domestic Water Corporation, the U.S. Army Corps of Engineers began constructing the dam in 1969. After the United States Civil Administration of the Ryukyu Islands returned administration of Okinawa back to Japan in 1972, construction became the responsibility of the Japanese government. The dam was completed in 1972, and the auxiliary spillway in December 1974. The dam was later raised to accommodate an improved intake and an additional in water elevation. This additional work was completed in 1991.