Mazegawa No.2 Dam (馬瀬川第二ダム, Mazegawa dai-ni da-mu) is a dam in the city of Gero in Gifu Prefecture, Japan on the Maze River. The dam is part of the Iwaya Dam project which acts as a flood control across the wider Kiso River system.[1] The dam is a concrete gravity dam with a height of 44.5 meters. It was constructed for hydroelectric power generation and its associated power plant has a capacity of 288,000 kilowatts of power. It is managed by the Chubu Electric Power Company.

Mazegawa Dam
Official name馬瀬川第二ダム
LocationGero, Gifu Prefecture, Japan.
Coordinates35°43′53″N 137°08′25″E / 35.73139°N 137.14028°E / 35.73139; 137.14028
Construction began1966
Opening date1976
Dam and spillways
ImpoundsMaze River
Height44.5 meters
Length263.0 meters
Reservoir
Total capacity9,736,000 m3
Catchment area1,049.0 km2
Surface area70 hectares
Power Station
Installed capacity28.8 MW

Notes

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  1. ^ "Overview of the IWAYA Dam project Specifications" (PDF).