Iwaya Dam

#689 among destinations in Japan

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The Iwaya Dam 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. ()

Local name: 岩屋ダム Opened: 1976 (49 years ago)Length: 1201 ftHeight: 418 ftReservoir area: 1.64 mi²Coordinates: 35°45'40"N, 137°9'25"E

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GifuJapan

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Day trips

Iwaya Dam – popular in the area (distance from the attraction)

Nearby attractions include: Gero, Mazegawa Dam, Shimohara Dam.

5.7 miNE
City
Gero
146 min walk • Visitors to Gero can immerse themselves in the city's rich cultural heritage by exploring its historic streets and traditional ryokan inns. The Gassho-style architecture, characterized by steep thatched roofs, provides a glimpse into Japan's rural past and offers a...
2.3 miSW
Dam
Mazegawa Dam
58 min walk • Mazegawa No.2 Dam is a dam in the city of Gero in Gifu Prefecture, Japan on the Maze River, part of the Kiso River system. The dam is a concrete gravity dam with a height of 44.5 meters.
4 miS
Dam
Shimohara Dam
102 min walk • Shimohara Dam is a dam in the city of Gero, Gifu Prefecture, Japan on the middle reaches of the Hida River, which is part of the Kiso River system. The dam is a concrete gravity dam with a height of 23.0 meters.