Nandu Guangji Bridge

Guangji Bridge is located on the County River in Nandou Village, Jiangkou Town, northeast of Fenghua City, and was originally built during the Southern Song Dynasty and reconstructed in the Yuan Dynasty. The bridge runs from east to west, measuring 51.68 meters in length and 6.6 meters in width. It is a four-hole wooden and stone structure with a slightly arched shape, featuring 16 corridor rooms on the bridge.

Guangji Bridge is one of the earliest existing wooden and stone structure corridor bridges in Zhejiang. The peculiar and scientifically valuable aspect of Guangji Bridge is its mortise and tenon structure of the bridge piers. The bridge uses four rows of stone pillars as piers, which are not solidly constructed like typical bridge piers, but instead consist of six flat, elongated stone slabs standing upright to form the piers, dating back to the Yuan Dynasty.

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Locking stones are placed on the top of the pillars, with grooves carved on them to hold wooden beams that secure the locking stones. Ten beams are arranged on top, with planks laid above. Each stone slab has a tenon at both ends, and two large stones, each with six mortises, are fitted around the bridge pillars, ensuring a tight and secure connection in all directions.

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This type of pier structure is not only sturdy but also reduces the water flow’s impact due to its smaller frontal area, making it less likely to be hit or entangled by floating debris. It also occupies less river space, facilitating navigation. The bridge is open all year round and accessible 24/7.

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