Paper

Influence of bedrock projections and large rocks on sediment transport in a mountainous gorge channel

Suk Woo KIM, Ken GOTO, Kun Woo CHUN and Tomomi MARUTANI　　3

A case study of Influences on the bed load detection rate of hydrophone system exerted by flow discharges

Hiroaki NAKAYA　　12

Research Notes

Evaluation of the safety of disaster dangerous places and the effect of the countermeasures against calamites construction using the critical line of the sediment‐related disaster
　　　Hiroyuki OHISHI, Nobuyuki KAWADA, Hiroaki TAKEMOTO and Kohei FURUKAWA　21

Deposition and erosion at a river confluence due to a difference in peak flood times
　　　Satoru MASDA, Takahisa MIZUYAMA, Akira ODA and Hideaki OTSUKI　27

Changes in sediment discharge after the collapse of Mt.Bawakaraeng in south Sulawesi, Indonesia
　　　Laurentia DHANIO, Takahisa MIZUYAMA, Ken'ichirou KOSUGI and Agnes RAMPISELA　32

Influence of design high water level,warm index, and maximum snow depth on deterioration rate of wooden crib dams
　　　Quoc Dung DANG, Yoshiharu ISHIKAWA and Katsushige SHIRAKI　39