Some of advanced flood protection methods in USA had been introduced to Japan after 10-20 years after they were developed in US. However, it is important to see through the status for introduction of them considering various characteristics when we introduce them, since characteristics of society, economy, topography and hydrology differ between USA and Japan.
I analyzed the countermeasures against flood undertaken by the Federal Government from the viewpoint of flood disaster, act, organization and concept concerning flood protection, covering the period before the establishment of The Flood Control Act of 1936 when comprehensive flood protection measures started to be actively and widely undertaken.
As a result of study, I found out that advanced flood protection methods in USA were developed as comprehensive flood protection system, processing various steps, and searching needs, background and methods at that time. And I found out that it is important to develop proposal of improvement measures, enforcement of many-sided program, establishment of advanced plan and review of measures when we consider new flood protection method.
