In 2007, the Hong Kong Wu Zhi Qiao (Bridge to China) Charitable Foundation was established. The “Wu Zhi Bridge” project builds a pedestrian bridge for remote rural areas in the mainland through the joint participation of college students from Hong Kong and the mainland. Our company actively supports and participates in charity undertakings. The “Wu Zhi Bridge” of Yunnan Major Village, which was completed in August 2017, is one of them. After two field trips, the construction team made a plan to build the steel Bailey Bridge here, and in just ten days, a new bridge on the river in the village. The 32-meter-long main bridge spans the 28-meter channel, connecting the river through which primary school students have to go to school, ensuring the safety of students and facilitating the daily life of villagers and students. In order to ensure the efficient and efficient completion of the project with high quality, the technical team of Great Wall Heavy Industry and the initiating team discussed the project, optimized the structural details, field measured the bridge site according to the local natural environment and river conditions, repeatedly revised the design drawings to achieve the best, and finally determined the bridge drawings of Berry Bridge. Bailey Bridge, also known as prefabricated road steel bridge, is the widely used and most popular bridge in the world. It has the characteristics of simple structure, convenient transportation, fast erection and easy decomposition. At the same time, it has the advantages of large carrying capacity, strong structural rigidity and long fatigue life. It can make up the different span of various types and various uses of temporary bridge, emergency bridge and fixed bridge according to the actual needs, with the characteristics of less component, light weight and low cost. The structure of the Bailey Bridge produced by our company has been optimized according to the field investigation. The light Belle Bridge version 2.0 is more simple and beautiful than the 1.0 version. The height of the Bailey piece is changed from 1 meter to 1.2 meters, which is more in line with the safety requirements of pedestrians, and it is more convenient to assemble after simplification. The design of the grid panel can avoid the accumulation of soil on the bridge deck, resulting in the bridge deck turning yellow or slippery in rainy days, and the grid panel will be washed clean in rainy days, and the soil can fall into the river. With it, the villagers have a safe and reliable way to cross the river and their children go to school, without having to pass through the old disrepair bridge or risk wading across the river.