The Shijiu Lake Bridge is a cross-lake passage connecting Lishui District and Gaochun District in Nanjing City, Jiangsu Province, China. It is located above Shijiu Lake. It is an important component of the new passage from Nanjing to Gaochun Section of Xinyi-Haifeng Highway and Nanjing Metro Line S9 section.

The track bridge of Shijiu Lake Bridge is laid parallel to the road bridge. The track bridge is set in the middle of the left and right road bridges. The three bridges are constructed in parallel, and the road bridge is set with two central split openings. The road bridge and the track bridge are in the middle. The longitudinal planes of the openings of the sub-zones are kept consistent to achieve level crossing. During the operation period, the public and rail linkages can be used during emergency handling of major incidents to ensure that road vehicles can achieve emergency U-turns.

The road bridge of Shijiu Lake Bridge is divided into left and right sections. The upper and lower bridges are adopted. The whole bridge structure is prefabricated prestressed composite box girder and prestressed variable cross-section continuous box girder. The lower structure is bored pile foundation ; The main span of the main bridge across the channel adopts a variable cross-section continuous girder bridge design, the non-navigable openings are all prefabricated prestressed composite box girder, and the standard span of the approach bridge adopts prefabricated prestressed composite box girder; the bridge deck and the planned Qinhuai River Ⅳ The channel is set at a right intersection, and the wrong hole arrangement is adopted at the channel in the lake area to adapt to the alignment of the channel while inducing the sailing ships; in addition to meeting the requirements of conventional dead load and live load of vehicles, the upper structure is also equipped with water collection pipes and Environmental design loads such as sound barriers; conventional loads such as bearing friction resistance, vehicle braking force, temperature force, wind load, etc. shall be considered in the design of substructure piers and foundations, and temporary loads will be affected by the adverse effects of wind and waves on the bridge substructure Ability to design to ensure the safety of the bridge structure; wall-type anti-collision guardrails are installed inside and outside the pier column.Editor/Luo Wentao