Inverted siphon structure in the South-to-North Water Transfer Project is one of the important water conveyance structures. It inevitably goes across the ground structures,such as bridges. In order to study the impact on inverted siphon by the adjacent structure of overpass bridge,the inverted siphon structure-soil-overpass bridge was established based on ADINA finite element analysis software. Through the calculation and analysis,we find out that the influence of live load on the bridge can be neglected,wi...