- Kinugawa River left bank 6.5KP | Kokinu, Tsukubamirai City, Ibaraki Prefecture | Ministry of Land, Infrastructure, Transport and Tourism River Disaster Prevention Information
- Kitabukuro, Kokai River Left Bank 22.2K | Kitabukuro, Tsukubamirai City, Ibaraki Prefecture | Shimodate River Office
- Tsukinuki, Kokai River Left Bank 23.0K | Tsukinuki, Tsukubamirai City, Ibaraki Prefecture | Shimodate River Office
- Kokai River left bank 24.4KP | Oshizuna, Tsukubamirai City, Ibaraki Prefecture | Ministry of Land, Infrastructure, Transport and Tourism River Disaster Prevention Information
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