Abstract
In order to keep both safety and amenity in Neya River Basin, East Osaka, where the rapid urbanization has been advanced, this paper discusses the efficiency and availability of the flood control facilities. Firstly the seasonal rainfall characteristics was estimated. Secondly this paper discusses the time-dependent characteristics of cut-off effects of peak flood discharge by the model rainfall. Finally the possibility of the practical control concerning the flood control and water reuse as the general service water is studied in order to get the higher stage of water environment expecting both the safety and amenity in the middle of 21 century.
