In this world, the bridge is an important part of roads whenever it is. In history, if there had an evaluation of transportation, the new demand for bridge load, width of span and etc come out. That will push the development of bridge project technology. Before the advent of the railway in the 1920s, the main material for bridge is stone and wood, and use the metal material is infrequent.
The bridge structure is a plate-welded box-type combination, with nine partitions inside, connected by ten webs and upper and lower flange plates. It consists of eleven sections and three pieces, which are connected by high-strength bolts and welding. The height of the box section is 0.600m.