List of dams in Japan

As a nation of islands and narrow, steep valleys, dams play a vital role in Japanese society as they are constructed primarily to control floods, supply water and generate hydroelectric power. The tallest dam in Japan is the 186 m high Kurobe Dam. The largest dam by structural volume in the country is the Tokuyama Dam (pictured) with 13700000 m3 of rock-fill. Tokuyama also creates Japan's largest reservoir with a water volume of 660000000 m3.

The dams are arranged by prefecture in the list below.

Chubu region

 * Aichi
 * Fukui
 * Gifu
 * Ishikawa
 * Nagano
 * Niigata
 * Shizuoka
 * Toyama
 * Yamanashi

Chugoku region

 * Hiroshima
 * Okayama
 * Shimane
 * Tottori
 * Yamaguchi

Kansai region

 * Hyogo
 * Kyoto
 * Mie
 * Nara
 * Osaka
 * Shiga
 * Wakayama

Kanto region

 * Chiba
 * Gunma
 * Ibaraki
 * Kanagawa
 * Saitama
 * Tochigi
 * Tokyo

Kyushu region

 * Fukuoka
 * Kagoshima
 * Kumamoto
 * Miyazaki
 * Nagasaki
 * Okinawa
 * Oita
 * Saga

Hokkaido region

 * Hokkaido

Shikoku region

 * Ehime
 * Kagawa
 * Kochi
 * Tokushima

Tohoku region

 * Akita
 * Aomori
 * Fukushima
 * Iwate
 * Miyagi
 * Yamagata