Kengo Kuma & Associates

Kusugibashi Bridge

Kusugibashi Bridge
© Katsumasa Tanaka

KUSUGIBASHI BRIDGE

Kengo Kuma & Associates

COOPERATION
Oakplus

DESIGN TEAM
Minoru Yokoo, Shun Horiki, Toshiro Ota, Rikuro Sakaushi, Hossam Elbrrashi, Tomohiro Matsunaga

CONSTRUCTION
Nichiei Kogyo, Yuri Kensetsu Kogyo

PHOTOGRAPHS
Katsumasa Tanaka

YEAR
2022

LOCATION
Iwakuni, Japan

CATEGORY
Bridges, Pedestrian Bridge

Text description provided by architect.

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.

Kusugibashi Bridge
© Katsumasa Tanaka
Kusugibashi Bridge
© Katsumasa Tanaka

On both sides of the bridge are the factory 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, an RC frame was combined with 105-square cypress balustrades.

Kusugibashi Bridge
© Katsumasa Tanaka
Kusugibashi Bridge
© Katsumasa Tanaka

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.

Kusugibashi Bridge
© Katsumasa Tanaka


Kusugibashi Bridge
© Katsumasa Tanaka
Kusugibashi Bridge
© Katsumasa Tanaka
Kusugibashi Bridge
© Katsumasa Tanaka
Kusugibashi Bridge
© Katsumasa Tanaka
Kusugibashi Bridge
© Katsumasa Tanaka
Kusugibashi Bridge
© Katsumasa Tanaka


Kusugibashi Bridge
Section
Kusugibashi Bridge
Elevations


Kusugibashi Bridge
Plan - Structure
Kusugibashi Bridge
Plan


Kusugibashi Bridge
Detail

Kengo Kuma & Associates
T +81 3 3401 7721 F +81 3 3401 7778
Kengo Kuma & Associates
2 Chome-24-8 Minamiaoyama, Minato City, Tokyo 107-0062, Japan