Ohyoshizawa Tameike Dam
Ohyoshizawa Tameike is an earthfill dam located in Akita Prefecture in Japan. The dam is used for irrigation. The catchment area of the dam is 2.1 km2. The dam impounds about 8  ha of land when full and can store 726 thousand cubic meters of water. The construction of the dam was completed in 1934. References

Dams in Akita Prefecture
1934 establishments in Japan