Chuanjiao Bridge in Mianyang is 520 meters long. Chuanjiao Bridge starts from Shui Sheng South Street, crosses Binjiang West Road and Fujiang River, and ends at Xiaodao West Road. It is connected with the built tunnel in Science City, with four lanes in both directions. The main line of Binjiang West Road at Xiqiaotou passes through the approach road of Shui Sheng Fujiang Bridge, and four right-in and right-out ramps are set on both sides of the tunnel, thus realizing the traffic conversion between Mianyang Chuanjiao Bridge and Binjiang West Road.