Huanggang road-rail Yangtze river bridge is the common channel for Wuhuang intercity rail and Huanger highway. A main span of 567m and the whole span length is 1215m（81+243+567+243+81）.It is the longest span road-rail partially cable-stayed bridge. The steel casing diameter is 3.2M, the length is 25m. Adopt caisson structure and the steel casing reinforcement. The construction geological condition is very complicated, mainly the rock stratum.