Isawa Dam, Embankment dam in Iwate Prefecture, Japan.
Isawa Dam is an embankment dam on the Isawa River in Iwate Prefecture that holds back water for power generation and flood control. The structure includes turbines and serves multiple communities across the region.
Construction began in the 1980s and took decades to complete, replacing an earlier dam that had operated in the area. The project shaped water management for the prefecture during this period.
The infrastructure project demonstrates Japanese engineering capabilities in water management and hydroelectric power generation for regional development.
The dam is located in a mountainous area and can be visited from several viewpoints along its length. It is best to visit during clear weather when paths are dry and conditions are safe.
The reservoir formed by the dam contains 143 million cubic meters of water and covers a surface area of 440 hectares.
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