Oda District Okayama 2024
Disaster report of 2018 July heavy rain for geo-structures and slopes in Okayama ScienceDirect.com
In Mabicho, delays, lack of awareness raised death toll from floods The Japan Times
Map shows up to 4.8 meters of floodwater estimated to have covered part of Okayama Pref. - The Mainichi The Mainichi
Okayama pref. gov't had no maintenance plans for 20 years for 3 rivers that flooded - The Mainichi The Mainichi