Ōmachi Dam, Gravity dam in Ōmachi, Japan.
Description
The Ōmachi Dam is a concrete gravity structure on the Takase River in Nagano Prefecture. The facility includes four radial gates and stores water for hydroelectric power generation and regional water supply.
History
The dam was completed in 1985 as a major infrastructure development for water management in Nagano Prefecture. Its construction represented an important advancement in modern Japanese hydroelectric facility engineering.
Culture
The dam interior includes an inspection gallery where visitors observe the engineering methods used in Japanese hydroelectric infrastructure development.
Practical
The facility offers tours through the inspection gallery where visitors can observe the internal structures and engineering methods. It is advisable to check accessibility in advance since maintenance work may occasionally affect visiting conditions.
Did you know?
The reservoir reaches an elevation of 898 meters and features four radial gates capable of managing water flow at 1,910 cubic meters per second.
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