*Nobutaka maki¹, Yuki Watanabe¹, Isao Kobayashi¹, Kousuke Ikeda¹, Takashi Mitsuzuka¹, Rintarou Izu¹, Tatsuya Mikami², Kazato Egawa², Takeshi Sonoda³ (1. PACIFIC CONSULTANTS CO., LTD., 2. Hokkaido Regional Development Bureau Abashiri Development and Construction Department Kitami office of river, 3. Department of Ocean and Fisheries Sciences, Faculty of Bio-industry, Tokyo University of Agriculture)

*Hibiki Minowa¹, Tomoaki Nakamura¹ (1. Nihon University)

*Morihiro Harada¹ (1. Gifu University)

*Yuno Yasuda¹, Yuichi Kayaba¹ (1. Nagoya Institute of Technology)

*Shoukou You¹, Masatomo Nagao¹ (1. Ashikaga University)

Tetsuya Nakamura¹, Kei Koura², *Atsumi Kataishi³, Tadashi Yamada³ (1. Eight-Japan Engineering Consultants Inc., 2. Graduate School, Chuo University, 3. Research and Development Initiative, Chuo University)

*Michihito Takiyama¹, Seiji Miyazono¹, Hideaki Miyahira¹, Ryohei Nakao¹, Yoshihisa Akamatsu¹ (1. Graduate School of Science and Technology for Innovation, Yamaguchi University)

*Yuudai Nemoto¹, Takumi Yamaguchi¹, Hitoshi Miyamoto², Tetsuya Oishi³ (1. Graduate School of Engineering and Science, Shibaura Institute of Tecnology, 2. Shibaura Institute of Tecnology, 3. Civil Engineering Research Institute for Cold Region)