A variable-radius arch dam built on the upper reaches of the Kurobe River. It is called “the greatest project of the 20th century” due to its huge scale and difficulty. The highest dam in Japan at 186 meters.

Known affectionately as Kuroyon, the power plant was built entirely underground to protect the natural environment.

One of Japan’s greatest engineering works, built in a harsh natural environment, overcoming tremendous difficulties. The digging of the rail tunnel to enable construction work was the subject of the book Konetsu Zuido by Akira Yoshimura.

Designed by the architect Bunzo Yamaguchi and named one of the “Top 100 Architectural Structures of Toyama.”

Completed in 2012 using existing facilities—water intake weir, aqueduct, water tanks, etc.

Known for being prone to flooding, the Kurobe River carries a high volume of silt downstream. For this reason, the Dashidaira Dam has two sluice gates, a structure that allows accumulated silt to be released as necessary.

Built to replace the Yanagawara Power Plant, whose operation was suspended in June 1993, and which was submerged by construction of the Unazuki Power Plant. The plant has the appearance of a European castle floating on a lake.

The water for generating power comes from the Ministry of Land, Infrastructure, Transport and Tourism’s multipurpose Unazuki Dam.