Kurushima Kaikyō Bridges 1999

Kurushima Kaikyō Bridges 1999

© Brad Kremer

The Bridges

The world’s first three continuous bridges link two of Japan’s islands over the 4km-wide Kurushima Strait. Opened in 1999, the Kurushima-Kaikyo Bridges are comprised of three steel suspension bridges with stiffened-box girder decks, each sharing anchorages that join one bridge to the next.

The Honshu-Shikoku Bridge Project fulfilled Japan’s ambition in the 1980s and 1990s to link the main island of Honshu with the southerly island of Shikoku via three major crossings: Kurushima, Bisan-Seto and Akashi. These comprised of 17 major individual bridges over the deep waters separating the islands. These include the Tatara Bridge, the Minami Bisan-Seto Bridge and the Akashi Kaikyo Bridge.

The Kurushima bridges are the most westerly of the three crossings and link Hiroshima, on Honshu, to Imabari, on Shikoku, via the small island of Ohshima.

Kurushima Kaikyō Bridges

Three continuous suspension bridges

Key Facts

Three bridges which are all part of Japan’s Honshu-Shikoku Bridge Project

The steel suspension bridges enable a 4,015m crossing


Ehime, Shikoku, Japan

Carries the E76 Nishi-Seto Expressway across the Kurushima Strait

Linking Ohshima Island to Shikoku


Designers / Engineers

Honshu Shikoku Bridge Authority


First bridge: 600m main span

Second bridge: 1,020m main span

Third bridge: 1,030m main span

Main contractors

Kawasaki Heavy Industries

Honshu Shikoku Bridge Authority


Construction began 1990

Opened 1999

Other long-span bridges