Overview
Tokuyama Dam in Ibigawa. A rockfill dam with the largest storage capacity in Japan.
About this place
The Tokuyama Dam (徳山ダム, Tokuyama damu) is an embankment dam near Ibigawa, Ibi District, Gifu Prefecture in Japan. The dam was completed in 2008 and will support a 153 MW hydroelectric power station that is expected to be fully operational in 2015. Unit 1 at 23 MW was commissioned in May 2014. The dam was originally intended to withhold the upper reservoir of a 400 MW pumped-storage power station until a design change in 2004. The dam is also intended for flood control and water supply. It is the largest dam by structural volume in Japan and withholds the country's largest reservoir by volume as well.
Source: Wikipedia (CC BY-SA 4.0)
Source ja.wikipedia.org ↗Key facts
Field：Rockfill dam, water resources
Source pref.gifu.lg.jp ↗Source pref.gifu.lg.jp ↗Before you go
Three questions from the World Question Box that relate to this entry.
Same place in other collections
More in Nature & Scenery
Check before you visit · References
The original sources are listed here. Confirm opening hours, whether visits are accepted, fees and access with the latest official information.
Information checked on: 2026-09-03
Crafts and specialties of this prefecture
Written by Value Village from public sources. Nothing here is reproduced from another site.
Instagram posts from Gifu (from official accounts)
There are no posts linked to this place yet. Posts from the prefecture's official accounts are shown, rotating every minute.