Ohkubo Tameike Dam - Credit: Wikimedia Commons
Ohkubo Tameike Dam is an earthfill dam located in Kumamoto Prefecture in Japan. The dam is used for irrigation. The catchment area of the dam is 0.3 km2. The dam impounds about 2 ha of land when full and can store 105 thousand cubic meters of water. The construction of the dam was started on 1912 and completed in 1914. Read more on Wikipedia
Source: en.wikipedia.org