Kusugibashi bridge by Kengo Kuma and Associates


A bridge in Osogoe, Shuto Town, Iwakuni City destroyed by the Western Japan Flood in July 2018, was rebuilt as a wooden bridge that will become a new symbol for the community.

On both sides of the bridge are the brewery and store of “Dassai”, a Japanese sake produced by Asahi-Shuzo brewery known for its unique sake production, which covered the wooden part of the construction cost by donation.

Considering the risk of recurring disasters, a RC frame was combined with 105-square cypress balustrades. The arrangement of the cypresses created a gentle curve that echoed the surrounding mountain range, and the use of 105-square members, the most used member-size in Japanese wooden construction, created a bridge with a nostalgic human scale.

By combining Japan’s proud carpentry skills with the modern technology of computational design, a human and soft expression that has never been seen before in conventional civil engineering structures was created. Source by Kengo Kuma and Associates.

  • Location: Yamaguchi, Japan
  • Architect: Kengo Kuma and Associates
  • Project Team: Minoru Yokoo, Shun Horiki, Toshiro Ota, Rikuro Sakaushi, Hossam Elbrrashi*, Tomohiro Matsunaga
  • Construction: Nichiei Kogyo, Yuri Kensetsu Kogyo
  • Cooperation: OAKplus
  • Year: 2022
  • Photographs: Katsumasa Tanaka