Countermeasures against Tsunami disaster are an urgent matter in Kushiro region, which is located at south east of Hokkaido, since the region has experienced large-scale earthquakes several times in the past. The key role of Kushiro Port as a principle center for shipping activities mainly between eastern Hokkaido and Tokyo Metropolitan Area must be secured from Tsunami disaster. However, conventional countermeasures such as development of breakwater often requires considerable time and investment. Focusing on reduction rather than prevention of damage, this paper introduces a new concept of Tsunami countermeasure and shows a case study to design and construct “Tsunami Screen”in time and cost effective manner in Kushiro Port.
