In the past ten years, under the development of economy, traffic volume has increased quickly. Especially for big cities, river dikes become gateways for traffic in and out. Because the function of the river dike is mainly to prevent floods, when it has to be combined with the traffic function, the road structure on the dyke is greatly damaged, in addition the design and construction standards of irrigation and transportation are not compatible with each other, so it has greatly affected the quality of pavement of road on the dike in activity duration. In order to overcome the above problems, this paper refers to the proposal of criteria for the design work and thereby proposes some typical road cross-sections on the dike, in accordance with the requirements of the road traffic, where there is a river dyke crossing the urban area