Onbara Dam (Japanese: 恩原ダム) is a dam in the Okayama Prefecture, Japan, completed in 1927.[1]

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Onbara Dam
Location	Okayama Prefecture, Japan
Coordinates	35°18′01″N 133°59′15″E

The Onbara Dam is the oldest existing buttress dam for power generation.

It is unknown if or how many buildings were submerged in the construction of the dam.

References

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