National borders of wuyue in Spring and Autumn.

The "Danghu No.1 Bridge" in Lake Chengguan is located at the north entrance of Anji Lane, the west gate of Chengguan Town. It is a three-hole circular stone arch bridge, which spans the Shihe River in the north and south, and connects with the Hantang River in Jiaxing in the west. In the bridge column, there is a couplet: "The lake comes to expand the water, sings the crown and lifts the feet" and "The shadow connects with the ladder clouds, and Wan Li starts to take off. It is quite vivid to point out the traffic characteristics of this bridge, which connects to Danghu Lake (today's East Lake) and Xiji Hantang. According to local chronicles, this bridge is called "the Third Ring Road Cave Bridge, Xianfeng has not been rebuilt, and it was renamed as the first bridge in Danghu". Counting carefully, it has a history of more than a hundred years.

There is a magnificent stone arch bridge, Mamiao Bridge, in the ancient town of Ma Li, southwest of Qianjin Township, Pinghu, which is even more charming. The bridge body is three arches, with a total length of 27 meters, and the north and south stone steps are 37 levels each. According to the Guangxu edition of Pinghu County Records, the stable temple bridge was rebuilt during Guangxu period. He also said, "The stable temple, 15 miles south of the county, is a place where the duke of Jing keeps horses, so it is called a stable." Today's stable temple bridge was rebuilt in the spring of the 18th year of the Republic of China. There are eight couplets on the pillars of the bridge. The inscription on the west side reads: "Sail east to the mouth of Sanliankou, and Wanshoudu Jinggong Temple has been called a stable up to now. The west area along Dayitang belongs to Zhaojing in ancient times, and drive south to point to Jiufeng Peak." It vividly tells the long history and traffic function of the ancient bridge. Near this ancient bridge, during the archaeological investigation in Pinghu County in 1982, there were about 12, square meters of ancient cultural sites in Shang and Zhou Dynasties. This and the ancient bridge have formed a kind of vicissitudes of life. According to archaeological records, the national border bridge in the countryside of Honghe Town, Jiaxing is more like an old man telling people about the Spring and Autumn Period. The name of the National Border Bridge has a long history. It is the boundary between wuyue and China in the Spring and Autumn Period, hence the name. This bridge structure is a flat bridge with stone pillars and flat beams. There are two stone statues carved in the doorway on both sides of the bridge, the king of Wu in the north and the king of Yue in the south. It has certain historical value for studying the history and geography of Wu and Yue in the Spring and Autumn Period. Another example is Liuqing Bridge, which is located in the north of Taozhuang Town in Jiashan and spans the Liuxi River. It also has a long history. This bridge is now called splayed bridge locally. According to the Records of Jiashan County, Liuqing Bridge is Yongqing Bridge, which was rebuilt by Song Taodayou. There is a limestone on the west side of the south pier of the bridge, engraved with the words "Qianlong rebuilt in 6 years". This bridge is a single-hole stone arch bridge.