Bridge Type (First Kurushima-Kaikyo Bridge)：

Stiffened box girder suspension bridge with three spans and two hinges

Bridge Type (Second Kurushima-Kaikyo Bridge)：

Stiffened box girder suspension bridge with two spans and two hinges

Bridge Type (Third Kurushima-Kaikyo Bridge)：

Stiffened box girder suspension bridge with single span and two hinges

Ground Breaking Ceremony：

May 15, 1988

Commenced on-Site Construction：

September 10, 1990

Opened to Traffic：

May 1, 1999

Kurushima-Kaikyo Bridges, crossing Kurushima Strait (width: 4 km) between Ohshima Island and Imabari, are the first three continuous suspension bridges in the world. The girder section of the Bridges is much slender because flat hexagonal girder section was applied for the Bridge.
Third Kurushima-Kaikyo Bridge is the longest bridge in the route and the girders both side spans of the Bridge are not suspended by hanger ropes, considering topographic conditions and restrictions of the highway route. In addition, tunnel anchorage was adopted for the anchorage of the Bridge in Imabari not to largely change the surrounded area around the anchorage.