The geological characteristics of Yugan County, Shangrao City, Jiangxi Province are the combination of mountain weathered gravel and river and lake siltation. The content of pebbles and gravel in the soil is high, which is very unfavorable for foundation excavation and support construction.

Ziyun Bridge is the third bridge across the Ganjiang River in Fengcheng City, Yichun, Jiangxi Province. The total length of the project is 8.6 kilometers and the length of the bridge is 5,126 kilometers. It is expected to be completed in 2024. The project volume is large and the construction period is urgent.