Yomikaki Power Station

Yomikaki Power Station is a hydroelectric facility along the Kiso River in Nagiso that spans approximately 294 meters in length with a height of about 32 meters. The structure harnesses water flow to generate electricity for local communities using a river-based generation system.

The station began operations in December 1923 under Daido Electric Power Company and represented an important step in Japan's industrial development during the Taisho period. Today it holds status as an Important Cultural Property of Japan.

The station represents how communities adapted to new technology during Japan's industrial boom, with the waterway becoming part of the local landscape rather than separate from it. The structure blends into its riverside setting in ways that reflect the engineering sensibilities of its era.

The site sits along the Kiso River where visitors can approach on foot and view the structure from multiple angles. Choose a day with clear weather to see the building details and understand its design better in good light.

The station was designed following a management approach where one company controlled operations on the entire river, a strategy that shaped how Japan developed its hydroelectric resources. This system allowed for coordinated planning and operation across the full length of the waterway.

Location: Nagiso

Inception: 1921

Height: 32 m

Length: 294 m

GPS coordinates: 35.58804,137.59201

Latest update: December 9, 2025 18:47