The project is located at the intersection of Zhengwei road and South Fourth Ring Road in Zhengzhou city. The undertaking part is the steel-concrete composite beam part of the 12th and 13th links of the main line of Zhengwei road in the second working area of South Fourth Ring Road. The total length of 12 links is 183 meters, the total length of 13 links is 185 meters, and the width is 16.5 meters.