| 1．Tatara Bridge |
| The Tatara Bridge (多々羅大橋, Tatara Ōhashi) is a cable-stayed bridge that is part of the Nishiseto Expressway, commonly known as the Shimanami Kaidō しまなみ海道. The bridge has a center span of 890 metres (2,920 ft). As of 2010, it has the fourth longest main span of any cable-stayed bridge after the Sutong Bridge. The expressway is a series of roads and bridges that is one of the three routes of the Honshū-Shikoku Bridge Project connecting the islands of Honshū and Shikoku across the Seto Inland Sea in Japan. The Kurushima-Kaikyō Bridge is on the same route. |
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| 2．Kurushima Kaikyō Bridge |
| The Kurushima Kaikyō Bridge (来島海峡大橋, Kurushima Kaikyō Ō-hashi), which connects the island of Ōshima to the main part of Shikoku, was the world's longest suspension bridge structure[1] when completed, in 1999. The bridge is part of the Shimanami Kaidō, an expressway that spans a series of islands and connects Hiroshima Prefecture in Honshū to Ehime Prefecture in Shikoku. The bridge and the expressway were both conceived by the Honshū-Shikoku Bridge Project. |
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| 3．Hakata–Ōshima Bridge |
| The Hakata–Ōshima Bridge (伯方・大島大橋, Hakata Ōshima Ōhashi) is a Japanese suspension bridge, part of the 59 kilometer Nishiseto Expressway connecting the islands of Honshū and Shikoku. Completed in 1988, it has a main span of 560 meters and connects Hakatajima with Ōshima. The expressway connects seven small islands and also includes several other long span bridges including the Tatara Bridge, the Innoshima Bridge, and the Kurushima-Kaikyō Bridge. |
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