The bridge deck of Baodai bridge is wide and flat, with 53 holes connected at the bottom and 249.8m long. The total length is 317m and the width is 4.1m. The bridge is trumpet shaped with a width of 6 at the lower end. 1 meters. At both ends of the bridge, there are a pair of majestic bluestone lions. At the north end, there are four stone pavilions and five level octahedral stone towers. The whole Baodai bridge is as narrow as a belt, with many holes, reflecting the water, reflecting the real and the virtual. It is like a dragon floating in the water, and connecting the clouds on the back of the turtle. It not only provides convenience for the pedestrian to be a traitor, but also adds beautiful scenery to the Jiangnan Water Town. In engineering technology, it uses flexible piers, which can prevent the collapse of multiple bridge holes. Its arching method adopts "multi twist arch", which is very rare in the history of ancient bridge construction.
元代僧人善住对它描述道:“借得他山石,还摒石作梁。直从堤上去,横跨水中央。白鹭下秋色,苍龙浮夕阳。涛声当夜起,并入榜声长。”从中看出,远在元代,它不仅一是一座颇具规模的石拱桥,而且还肩负繁忙的运输任务。
In the Yuan Dynasty, the monks were good at describing it and said: "if you borrow other rocks, you can hold them as beams.". Straight up the bank, across the middle of the water. Egrets fall in autumn and Dragons float in the setting sun. When the sound of the waves rises at night, it becomes the sound of the billboard. " It can be seen that in the Yuan Dynasty, it was not only a large-scale stone arch bridge, but also a busy transportation task.
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