Overview
A rock-fill dam on the Isawa River. Its embankment volume is among the largest in Japan, and an exchange hall is attached.
Verification notes
Confirmed through Ministry of Land, Infrastructure, Transport and Tourism management information.
Key facts
Field：Dam, rockfill technology
Source thr.mlit.go.jp ↗Source pref.iwate.jp ↗Before you go
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Information checked on: 2026-09-03
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