Kiso Dam

Kiso Dam is a gravity dam spanning across the Kiso River to manage water flow and generate hydroelectric power for the region. The structure was built to blend with the surrounding mountain terrain of Nagano Prefecture.

The dam was completed in 1968 as an important step in Japan's post-war hydroelectric development. It became part of the nation's infrastructure rebuilding during the period of rapid economic growth.

The dam reflects Japanese engineering principles through its precise construction methods and integration with the surrounding mountain landscape of Nagano Prefecture.

The site is accessible year-round with viewing points to observe the structure and its operations. The best time to visit is during clear weather when views of the river and surrounding mountains are unobstructed.

The dam's catchment area spans 578.9 square kilometers, making it a central component in managing water resources across the Kiso River system.

Location: Kiso

Inception: 1968

Height: 35.2 m

GPS coordinates: 35.81972,137.67778

Latest update: December 13, 2025 17:07