The main span of Sutong Bridge is a double-pylon, double-plane cable-stayed bridge with steel box girder, which has the world's longest central span of 1,088m within cable-stayed bridges. Overcoming problems caused by severe meteorological conditions, perplexing hydrological conditions, deep buried bedrock and higher navigation level, many new technics and methods were created. The super-long span and stayed cables, super-high towers, as well as super-large foundations in deep water are all world records currently. Keys including structural system, steel box girder, stayed cable, tower, pier, tower foundation, collision avoidance system, wind-resistance, seismic-resistance, structural nonlinear response and structural static stability were presented individually in this paper. It was awarded George-Richardson Medal of International Bridge Conference (IBC) in 2008. The success of Sutong Bridge is the landmark that denotes China from large bridge country to advanced bridge country.

The main span of Sutong Bridge is a doublepylon, doubleplane cablestayed bridge with steel box girder, which has the world’s longest central span of 1 088 m within cablestayed bridges. To overcome problems caused by severe meteorological conditions, perplexing hydrological conditions, deep buried bedrock and higher navigation level, many new technics and methods were created. Keys including structural system, steel box girder, stayed cable, tower, pier, tower foundation, collision avoidance system, windresistance, seismicresistance, structural nonlinear response and structural static stability were presented individually in this paper.