The Iwaya Dam (Iwaya Damu) is a dam in the city of Gero, Gifu Prefecture, Japan on the Maze River, part of the Kiso River system. The dam is a rockfill dam with a height of 127 meters and was constructed as a multipurpose dam for flood control, supply of municipal and industrial water, irrigation water and hydroelectric power generation. The reservoir created by the dam supplies the Chubu Electric Power Company's Mazegawa No.1 Power plant with a capacity of 288 MW hydroelectric power station.[1]

This article may be expanded with text translated from the corresponding article in Japanese. (December 2008) Click [show] for important translation instructions. View a machine-translated version of the Japanese article. Machine translation like DeepL or Google Translate is a useful starting point for translations, but translators must revise errors as necessary and confirm that the translation is accurate, rather than simply copy-pasting machine-translated text into the English Wikipedia. Do not translate text that appears unreliable or low-quality. If possible, verify the text with references provided in the foreign-language article. You must provide copyright attribution in the edit summary accompanying your translation by providing an interlanguage link to the source of your translation. A model attribution edit summary is Content in this edit is translated from the existing Japanese Wikipedia article at [[:ja:岩屋ダム]]; see its history for attribution. You should also add the template {{Translated|ja|岩屋ダム}} to the talk page. For more guidance, see Wikipedia:Translation.

Iwaya Dam
Official name	岩屋ダム
Location	Gero, Gifu Prefecture, Japan
Coordinates	35°45′39.8″N 137°09′25.8″E
Construction began	1966
Opening date	1976
Dam and spillways
Impounds	Maze River
Height	127.5 meters
Length	366.0 meters
Reservoir
Total capacity	173,500,000 m³
Catchment area	1,734.9 km²
Surface area	424 hectares
Power Station
Installed capacity	28.8 MW

157 households were flooded during the construction of the dam.

References

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