The typical bed configuration of Satsunai River, which meanders continually and is well known to be double-row bars and braided streams, can be observed in the channel. Levee construction of Satsunai River started in 1950. It has been reported that bank erosion occurred in theriverin 148 places for the 15 years from 1960 to 1975, whichwas the time just after the levee construction.In this study, numerical experiments with a full-scale channel were performedin order to realize the characteristics of bed deformation observed in Satsunai River at that time. The characteristics of bed deformation and braided streams observed in the river were found to be strongly affected by the meandering river channel.
