Kosuge, Satokawa River | Kosuge-cho, Hitachiota City, Ibaraki Prefecture | Hitachi River National Highway Office
Machiya, Satokawa River | Nishigoutoshimocho, Hitachiota City, Ibaraki Prefecture | River Division, Civil Engineering Department, Ibaraki Prefecture
Satokawa River 6.5KP right bank | Tawatari-cho, Hitachiota City, Ibaraki Prefecture | Ministry of Land, Infrastructure, Transport and Tourism River Disaster Prevention Information