It is a double-layer steel truss bridge for highway and railway across the Huangpu River in Songjiang District.

For a long time after its completion, it was also the only bridge on the upper reaches of the Huangpu River until the opening of the Huangpu River Bridge on the G15 Shenhai Expressway in 2006.

[2][3][4] In June 1972, the Central State Council approved the construction of Shanghai Jinshan Petrochemical Complex, which was selected as the Hangzhou Bay in the Jinshanwei area in the southern part of Jinshan District.

Songpu Bridge is one of the key projects for the construction of Jinshan Petrochemical General Plant.

It was invested by Shanghai Jinshan Petrochemical General Plant and the Survey and Design Department of the Ministry of Railways Bridge Bureau was responsible for the main project design of the bridge.

There are 1.5 meters wide sidewalks on both sides; the lower railway bridge is Shanghai.

The upper structure is a riveted triangular steel truss continuous beam with a length of 419.6 meters; the lower structure has three piers in the middle of the river.

Due to the early construction of the Songpu Bridge, there are only two motor vehicle lanes in the two directions.

Many bus lines from Shanghai and Songjiang and south to Jinshan need to cross the river through the bridge.

After that, there were still two pairs of K8351/8352 and K8353/8354 trains from Shanghai South - Luchao Port passing through the Songpu Bridge, and a small number of freight trains crossing the bridge.

At present, the railroad tracks on the bridge have been demolished and it is planned to be converted into pedestrians and bicycle lanes.

The railway started construction on December 25, 1973, and was partially opened to traffic on May 31, 1974.

The road in March 1974 started construction on June 29, 1976, and the bridge was opened to traffic synchronization.