A Study on the Adaptation Measures against Storm and Flood Damage in Saga, Japan

Saga Plain faces the Ariake Sea whose tidal range is largest in Japan. It is significantly difficult to manage storm surge and flood damage in this area because of the unique terrain condition. Under the increase of natural hazard intensity due to climate change, etc., a traditional flood management system applied to this area is useful for the future increasing natural hazard and risk mitigation. In this study, the characteristics of water-related disasters in Saga Plain are reviewed and the usefulness of the traditional flood management technology is clarified by focusing on the historic remains of the watershed s flood management.