Okuno Dam

Okuno Dam is a rock-fill dam spanning the Ito-Okawa River valley, built up to a height of about 63 meters to create a reservoir. The structure holds water for the surrounding region and integrates into the natural mountain landscape.

Construction began in 1972 and finished in 1989, with adjustments made during planning to match local geological conditions. The project responded to increasing water needs in the region.

The dam forms part of the infrastructure network that supports Ito city, a location recognized for its natural hot springs and coastal position.

You can reach the dam by local roads, and parking is available for those traveling by car. The site is easiest to visit during dry months when access paths are in good condition.

The reservoir created by the dam filled with water flowing from the surrounding mountain region, transforming the landscape. Today this water body offers unexpected opportunities for visiting and observing local wildlife and plant life.

Location: Ito

Inception: 1989

Height: 63 m

Website: http://okunodam.jp

GPS coordinates: 34.93639,139.06972

Latest update: December 12, 2025 14:20