steel were used in construction. Although nets, ropes and other safety measures were employed, the lives of 13 workers were lost during the 10 years of construction. The bridge opened to road and rail traffic on April 10, 1988. Constituent bridges Six of the eleven bridges are separately named, unlike some other long bridge complexes such as the San Francisco–Oakland Bay Bridge. The other five bridges are viaducts. The six named bridges from north to south are listed below. Shimotsui-Seto Bridge The is a double-decked suspension bridge with a center span of and a total length of which connects Honshū with the island of Hitsuishijima. It is the 45th largest suspension bridge in the world. It is the northernmost bridge of the Seto-Chuo Expressway. Hitsuishijima Bridge The is a double-decked cable-stayed bridge with a center span of and a total length of . It is immediately north of the identical Iwakurojima Bridge. Iwakurojima Bridge The is a double-decked cable-stayed bridge with a center span of and a total length of . It is immediately south of the identical Hitsuishijima Bridge. Yoshima Bridge The is a continuous double-decked truss bridge with a main span of and a total of five spans with a length of . It is immediately south of the Hitsuishijima and Iwakurojima Bridges. Kita Bisan-Seto Bridge The is a double-decked suspension bridge with two sections linked by a common anchorage between them. The center span is and the total length is . It is the 19th largest suspension bridge in the world. The nearly identical Minami Bisan Seto Bridge is located immediately to the south. Minami Bisan-Seto Bridge The is a double-decked suspension bridge with a center span of and a total length of . It is the 13th longest suspension bridge span in the world. It is the southernmost part of the Great Seto Bridge. The roadway of the bridge is above sea level. Sister bridges Golden Gate Bridge, San Francisco, California, United States Affiliated from April 5, 1988 Fatih Sultan Mehmet Bridge, Istanbul, Turkey Affiliated from July 3, 1988 Øresund Bridge, Malmo, Sweden and Copenhagen, Denmark Affiliated from May 24, 2008 See also Honshū–Shikoku Bridge Project, three routes connecting Honshu and Shikoku Akashi Kaikyō Bridge Kurushima Kaikyō Bridge Tsing Ma Bridge, which has the longest road-rail span in the world List of largest suspension bridges List of largest cable-stayed bridges Mount Washu, viewpoint of the Great