Abstract:The Jining Inner Ring Express Road project consists of Ning"an Avenue, Jining Avenue, Jishui Avenue, and Rencheng Avenue. The length of the line is 41km, including 36km elevated bridges and 5km surface roads. The bridge project includes the main line viaduct, 4 interchanges, 26 pairs of entrance and exit ramps, 2 bridges across the Beijing-Hangzhou Grand Canal, and 2 bridges across the Xinyan Railway. The entire line is located in the coal mine goaf. The bridge design adopted large-scale prefabricated assembly technology to build the first fully prefabricated urban viaduct in Shandong Province. This paper focuses on the overall design of the bridge engineering of the project.