Overview
Takase Dam in Omachi. A rockfill dam built by piling up rock, with one of the highest embankments in Japan.
About this place
Takase Dam is a dam built in the upper reaches of the Takase River, in the Shinano River system, a first-class river, in Omachi, Nagano Prefecture. It is a power-generation dam managed by TEPCO Renewable Power, and is the second highest in Japan after Kurobe Dam (Kurobe River) in Toyama Prefecture. It is a rockfill dam 176 m high, forming the upper regulating reservoir of the Shin-Takasegawa Power Station, a pumped-storage hydroelectric power station, and it hosts one of Japan's leading large hydroelectric plants, generating up to 1,280,000 kilowatts (kW) between it and the lower regulating reservoir, Nanakura Dam.
Source: Wikipedia (CC BY-SA 4.0)
Source ja.wikipedia.org ↗Key facts
Field：Rockfill dam, hydropower
Source pref.nagano.lg.jp ↗Source pref.nagano.lg.jp ↗Official website
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Source tepco.co.jp ↗Before you go
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Information checked on: 2026-09-03
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