〇Yukihiro Hashira¹, Hiroaki Uehara², Hiroshi Kitamura¹, Kei Miyamoto¹, Atsushi Tokunaga¹ (1.OBAYASHI CORPORATION, 2.the kanto district maintenance station kawamata dam management branch)

〇Ryo Murai¹, Hiroshi Kitamura¹, Yukihiro Hashira¹, Uehara Hiroaki² (1.Obayashi, 2.Ministry of Land, Infrastructure, Transport and Tourism, Kanto Regional Development Bureau)

〇Kiyoshi Sato¹, Hiroshi Kitamura¹, Yukihiro Hashira¹, Hiroaki Uehara² (1.OBAYASHI CORPORATION, 2.Kanto Regional Development Bureau Kawamata Dam Management Branch)

〇Atsushi Tokunaga¹, Akira Yamamoto¹, Yusen Inagawa¹, Takayuki Kanbe², Toshinori Kimoto³, Katsuya Ishida⁴, Daisuke Kubozuka⁵, Shinji Nakaue⁶ (1.OBAYASHI CORPORATION, 2. KAJIMA CORPORATION , 3.SUMITOMO MITSUI CONSTRUCTION CO., LTD, 4.SANSHIN CORPORATION, 5.NITTOC Co., Ltd., 6.Sumitomo Electric Industries, Ltd.)

〇Daisuke Kubozuka¹, Akira Yamamoto², Atsushi Tokunaga², Yuusen Inagawa², Takayuki Kanbe³, Toshinor Kimoto⁴, Katsuya Ishida⁵, Shinji Nakaue⁶ (1.NITTOC Co.,Ltd, 2.OBAYASHI Co.,Ltd, 3.KAJIMA Co.,Ltd, 4.MITSUISUMITOMO Co.,Ltd, 5.SANSHIN Co.,Ltd, 6.Sumitomo Electric Industries, Ltd.)

〇takahiro morita¹, atsushi tokunaga¹, chikashi ohta¹ (1.OBAYASHI CORPORATION)

〇Yusen Inagawa¹, Tokunaga Atsushi¹, Kawasaki Hideaki², Fukumoto Hideo³ (1.Obayashi Corporation, 2.Japan Dam Engineering Center, 3.Matsue-shi water supply bureau)