Bridge Type：

Stiffened truss suspension bridge with three spans and two hinges

Ground Breaking Ceremony：

July 2, 1976

Commenced on-Site Construction：

September 12, 1976

Opened to Traffic：

June 8, 1985

Ohnaruto Bridge is a suspension bridge with 876 m of the center span length, crossing Naruto Strait which is famous for an eddying current.
The final shape of the Bridge will be a two-story structure for both highway with 6 lanes and railway with 2 tracks which are applicable to a bullet train. At present, only 4 lanes for highway are in service, and in the future, another 2 tracks for highway and 2 tracks for railway will be added on the bridge structure.