Abstract:Jiangdong Bridge (Qianjiang Nine Bridge) is located in the northeast corner of Hangzhou city, west Xiasha, east Xiaoshan, is an urban express road. There is Qian River tide watching near the bridge site, which requires higher bridge landscape. The river is 2.1km wide and located in the middle of the estuary of Qiantang River with complicated dynamic conditions. The bottom of the river bed is washed and silted violently. The length of the bridge is about 2253m. The main bridge structure is two self-anchored suspension Bridges and one prestressed concrete rigid frame bridge. The non-navigable bridge in the river is a prestressed concrete continuous beam bridge. The self-anchored suspension bridge with navigable holes is unique in shape, meaning "Qian Jiang sailing shadow". Its main span is 260m, and it adopts single-column bridge tower, separated steel box stiffened beam, space cable, and side span without sling. This type of suspension bridge has no precedent in China and abroad. This paper mainly introduces the design conception and construction characteristics of Jiangdong Bridge.