Zhao Zhouqiao, also known as Anji Bridge, is located 45 kilometers southeast of Shijiazhuang, on the Nangao River in Zhao County. Because the bridge body is all made of stone, it is commonly known as Dashiqiao. It was built between Emperor Kai of Sui Dynasty and Daye, and was supervised by craftsman Li Chun. Zhao Zhouqiao has a novel structure and beautiful appearance. The ancients said that it was "a miracle made, and people don't know why." The bridge is 64.4 meters long, 9.6 meters wide and 37.02 meters across. It is a single-hole arch bridge composed of 28 relatively independent arches. Zhao Zhouqiao's greatest scientific contribution is his pioneering work of "open-shouldered arch". On the two shoulders of the arch, there are four parallel small holes, which not only increase the water passage, reduce the weight of the bridge, save the stone, but also enhance the stability of the bridge. This effectively ensures that in the history of 1400 years, Zhao Zhouqiao has withstood many floods, eight major earthquakes and the weight of vehicles, and still stands on the Weihe River.

There are many beautiful legends about the architecture in Zhao Zhouqiao. In the past, when the river flooded, people had to rely on wooden boats to ferry. Lu Ban, the founder of the carpenter, turned sheep into stones and built the bridge overnight. Zhang and Chief Chai came to inspect the bridge together. Zhang rides a donkey with his head down, and the sun and the moon are on the donkey's back; Officer Chai pushes a cart carrying the Five Mountains. Walking in the middle of the bridge, the bridge is crumbling. Seeing that the situation was not good, Lu Ban jumped into the water and held the bridge with both hands. This stone bridge is safe and sound. Up to now, there are clear donkey hoof prints, driveway grooves and knee prints on the bridge; Lu Ban's handprint was left at the bottom of the bridge. As the folk song "Little Cowherd" sings: "The stone bridge in Zhaozhou is repaired by Lu Ban, and the sage in the jade railing stays; Zhang rode on the donkey bridge, and the king of Chai County pushed the car and ran past the ditch.