Ōi Dam, Gravity dam in Gifu Prefecture, Japan.
The Ōi Dam extends 215 meters across the Kiso River with concrete walls reaching a height of 53.4 meters above the riverbed point.
Momosuke Fukuzawa, founder of Daido Power Company and son-in-law of Yukichi Fukuzawa, initiated the construction of this hydroelectric dam in 1922.
The dam lake formed a section known as Ena Gorge, which became an integral part of the Tokai region's natural heritage and recreation spaces.
The reservoir created by the dam can store 3,872,000 cubic meters of water, supporting power generation and water management across Gifu Prefecture.
The dam structure combines early 20th-century Japanese engineering with Taisho period architectural elements, reflecting the era's technical capabilities.
Location: Gifu Prefecture
Inception: 1922
Height: 53.4 m
GPS coordinates: 35.48139,137.39639
Latest update: May 12, 2025 07:33
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