〇Nakahiro IKEDA¹, Fumihiro Ojima², Haruki HIGUCHI³, Yumi ITOTAGAWA⁴ (1.Tokyu Construction, 2.Tokyu Construction, 3.Tokyu Construction, 4.Tokyu Construction)

〇shohei dounomoto¹, koji kawaguchi¹ (1.NISHIMATSU CONSTRUCTION )

〇ENNI CHEN¹, Ayato Tsutsumi¹, Atsushi Yamamoto¹, Yuhei Goto², Masato Sasaki² (1.Penta-Ocean Construction Company, 2.Sapporo City Gov.,Bureau of Construction)

Satoshi Suyama¹, Shinji Kitazaki², Kohei Inoue², 〇Hiroaki Maegawa², Shinnosuke Sekihara², Kazuhiro Ito² (1.Ministry of Land,Infrastructure,Transport and Tourism Hokuriku Regional Development Bureau, 2.KAJIMA CORPORATION)

〇Kuratoshi Maeda¹, Nakajima Michio¹, Shimizu Kouzo¹, Izumida Shirofumi¹, Onuma Kento¹, Hashino Hironori¹ (1.TOYO CONSTRUCTION)

〇Yoshitaka Takahashi¹, Yuta Narita², Yuki Nakamura² (1.OBAYASHI CORPORATION, 2.HOKKAIDO REGIONAL DEVELOPMENT BUREAU)

〇Kohei Kusumi¹, Norikazu Yamashita¹, Etsuo Hasegawa¹ (1.Shimizu Corporation)

〇Satoshi Yamanaka¹, Mitsuhiro Omata¹, Kosuke Matsuo² (1.OBAYASHI CORPORATION, 2.Japan Water Agency)