Kamagafuchi Dam

Kamagafuchi Dam is an arch-type structure in the Shinano River system that rises approximately 38.5 meters with a crest spanning around 144 meters. The construction manages water flow and storage for multiple purposes including irrigation and flood control.

Construction began in 1943 as an early example of arch dam technology in Japan. The project marked an important development in water management infrastructure during that period.

The structure reflects how Japan developed engineering solutions that worked within its river systems and natural geography. Visitors can observe how the dam sits within the local water management approach.

The dam sits near the entrance to the Kamikochi highland area and is relatively accessible from Matsumoto. Visitors should be prepared for mountain terrain and varying trail conditions depending on the season.

The structure holds status as a Registered Tangible Cultural Property, marking it as an important early application of arch dam engineering in Japan. It represents how this technical innovation was adapted for mountain terrain and water management needs.