Introduction to Juandong Bridge: Juandong Bridge was built during the Qianlong period of the Qing Dynasty. It is located at the seat of the Gong'an Yi Township government, 100 meters north of Xiangbi Village. It is now well preserved. The single-hole stone arch bridge is paved with bluestone slabs, the bridge deck is straight, running north-south, and spans the Gentian River. The bridge is 8.5 meters long, 1.2 meters wide, about 12 meters high, and has an arch span of 3 meters.