Zhoushan Island-Mainland Connection Project Built for a Long and Efficient Life

The Zhoushan Island-Mainland Connection Project in China is a grand project with the total length of 64.6 km including 27.3 km-long five major bridges spanning five channels in succession, among which Xihoumen Bridge is a suspension bridge with its main span of 1650m, and Jintang Bridge has a main navigational channel section, a 620m long steel cable-stayed bridge. After aerodynamic investigation and vibration control related to flutter and vortex-shading having been thoroughly carried out for an efficient life of the project, severe sea environment brings about another kind of life-time problem, durability, and some new technologies are employed against chloride corrosion from the sea for a long life of the project.