1989-1996

Ushibuka Bridge

Amakusa, Japan © RPBW
1989-1996

Ushibuka Bridge

Amakusa, Japan
1989-1996

Ushibuka Bridge

Amakusa, Japan ph. Maeda Engineering Co
1989-1996

Ushibuka Bridge

Amakusa, Japan ph. Maeda Engineering Co
1989-1996

Ushibuka Bridge

Amakusa, Japan ph. Shinkenchiku-sha Co., Ltd.
1989-1996

Ushibuka Bridge

Amakusa, Japan ph. Shinkenchiku-sha Co., Ltd.
1989-1996

Ushibuka Bridge

Amakusa, Japan

The 900m-long bridge positioned 19m above the sea, links three islands in the Amakusa Archipelago.

The design was determined both by a desire to minimise visual impact on the bay and by local wind conditions.

The bridge is a single clean arc, supported by rectangular piers, each set approximately 150m apart.

Its curved underside and the baffles set on the sides to protect cyclists from strong winds create an optical illusion: the bridge appears to float above the piers.

Credits

Client: Kumamoto Prefecture

Renzo Piano Building Workshop, architects – N. Okabe, senior partner in charge
in association with Maeda Engineering Co.

Design team: M. Yamada (architect in charge), S. Ishida (senior partner) with J. Lelay, T. Ueno and D. Cavagna (models)

Consultants: Ove Arup & Partners (advice on structural aspects).

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