Abstract:Taking Ningbo Yinzhou Avenue - Fuqing Road (Dongqian Lake Section ) Expressway Phase II Project spanning Hangzhou - Shenzhen Railway as an example, the construction scheme of the swivel bridge of urban expressway spanning the high-speed railway in the densely built-up areas is optimized and studied so as to minimize the adverse social impact caused by the engineering construction under the premise of ensuring the operation safety of railway business line, which provides the reference for the similar engineering projects.