The Dawenkou Ancient Stone Bridge does not simply cross the Dawen River; it masters it, a low-slung testament of stone assertively spanning the currents that once defined this ancient ferry crossing. It was first built during the Ming Dynasty's Longqing period, its creation a direct response to the limitations of the ferry, a testament to the ambition of a commercial town on the rise. The structure that stands today is largely the result of a decisive reconstruction in the sixth year of the Qianlong era, a project that fundamentally reshaped local transportation and economic life.

Its most defining characteristic is its sinuous form, an elongated "S" shape that responds to the river’s flow with a deliberate, angular grace. The bridge’s construction was an engineering feat of its time. Its deck is a composition of massive stone slabs, each measuring roughly 3.5 meters long and laid side-by-side to create the thoroughfare. These slabs were secured with iron connectors.

The bridge’s current form owes its existence to a key individual, a stone mason and philanthropist named Jiang Guisong, who funded its revival after a catastrophic flood. The bridge was subsequently renamed "Jiang Gong Bridge" in his honor, a name that honors the civic virtue that made its existence possible.

It was Jiang Guisong, a man from Zhoudian with a background in stone work, who took on the task of rebuilding by donating funds. This act of patronage transformed his name into a permanent part of the bridge’s identity. The bridge has not been static; it has undergone at least two major repairs since its Qing reconstruction, a process of continual care. The project was a significant event for the region, ending reliance on boats.

Today, it is designated as a National Key Cultural Relics Protection Unit by the State Council of China, classified under ancient buildings. Its presence continues to define the area as a key part of the broader Dawenkou National Archaeological Site Park. This designation not only protects the physical structure but also honors the collective effort and ingenuity it represents, its long, low profile a permanent argument against the river’s transient power.