It is situated in Chuo-ku, Kobe, at the foot of the mountain stream Nunohiki and waterfall of the same name.

The modern water supply plan in Japan was originally drawn up in 1887 but in 1892, Professor William Barton from the British Ministry of Engineering proposed an earth-fill dam with a reservoir capacity of about 31 million tons.

In 2005, the dam was partly reconstructed to incorporate seismic strengthening and sediment dredging was completed.

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