It is a rail-cum-road bridge with the fastest speed in the world, which includes a  2-track railway and a 6-lane highway. With the total length of 9,177m, the main bridge is divided into two modules which are as long as 1,684m. The first module adopted (121.05+5×168+121.05)m six-pylon partial cable-stayed continuous steel truss composite girders with the length of 1082.1m. The second module adopted (120.95+3×120+120.95)m continuous steel truss composite girders with the length of 601.9m. With the structure of multi-pylon and long module on the front view, the bridge is in triangle-shaped steel truss girder. The designed speeds for passenger’s line and highway are 350km/h and 100km/h respectively.