Overview
Hatanagi-II Dam stands on the upper main stream of the Ōi River in Aoi-ku, Shizuoka City, Shizuoka Prefecture. A hollow-core concrete gravity dam 69 meters high, it is equipped with a hydroelectric power station owned by the Chubu Electric Power Company. It is one of the Hatanagi dams.
Highlights
- ●A 69 m hollow-core concrete gravity dam
- ●A reservoir on the upper main stream of the Ōi River
- ●A hydroelectric station owned by Chubu Electric Power
- ●One dam that makes up the Hatanagi dams
History
The dam was completed in 1957. It was built to support power development in the upper reaches of the Ōi River. As a Chubu Electric Power generating facility, it continues to help supply electricity to the region.
Access
It is located on the upper Ōi River in Aoi-ku, Shizuoka City, Shizuoka Prefecture. Because it lies deep in the mountainous headwaters, thorough preparation is needed for a visit. Please check maps and official information for detailed routes.
Best season
Spring and autumn, when fresh greenery and autumn foliage color the mountains, are recommended. Visiting during the bright daytime hours lets you enjoy the reservoir scenery spread among the mountains.
Map
35.3081, 138.2033 · Wikidata
Suggested itinerary
- 1Head toward the upper Ōi River
- 2View the dam body of Hatanagi-II Dam
- 3Take in the reservoir and surrounding mountains
- 4Savor the headwater nature before heading back
Did you know?
💡 It is one of the Hatanagi dams, with a height of 69 meters. Its distinctive feature is its hollow-core concrete gravity dam structure.
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