Recently，The first piece of Dalongdong Bridge in Chongqing Banan-Pengshui Section of Chongqing-Hunan Double Line expressway, which was constructed by the Sixth Company of the Fourth Bureau of China RailwayTThe beam was successfully erected，Lay a solid foundation for the full penetration of the project。

It is understood that，The total mileage of Yuxiang double-track expressway is 280 kilometers.，The ratio of bridge to tunnel is about 80%。After the whole line is completed and opened to traffic，It will effectively alleviate the congestion of the existing Yuxiang expressway.，To further facilitate the transportation of districts and counties along the line.，Promoting high-quality economic and social development along the line。Li Peirun、Photo report by Li Wenzhe