The Polotong Jingqiao, the covered bridge seen in Qingyuan County last year, has the same work. Tong body did not use an iron nail, all made of wooden buckle, because the Yanma Ancient Road and Qing Dynasty Baiyang Factory silver mine transportation channel through this, is named "Tongjin Bridge", and later thought that the silver is shipped to Beijing, it was renamed "Tongjing Bridge".
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The Polotong Jingqiao, the covered bridge seen in Qingyuan County last year, has the same work. Tong body did not use an iron nail, all made of wooden buckle, because the Yanma Ancient Road and Qing Dynasty Baiyang Factory silver mine transportation channel through this, is named "Tongjin Bridge", and later thought that the silver is shipped to Beijing, it was renamed "Tongjing Bridge".
Tongjing Bridge is commonly known as Dabolu Bridge, now known as "Jiefang Bridge". It is located in Dabolu Village, Changxin Township, North of Yunlong County, across the river, 38 kilometers away from the county. The bridge was built in Qingqianlong in 41 years (1776), and Daoguang 15 years (1835) was rebuilt. Tongjing Bridge is an extended arm single-hole wooden beam bridge, with a total length of 40 meters, a width of 4 meters, a net span of 29 meters, and a height of12.5 meters. The bridge is stacked with wooden squares and stacked from the two sides of the bank to the heart of the river. The middle is connected by five cross beams with a length of 12 meters, and the upper boards form the bridge. The rooftop bridge house on the bridge, two rows of wooden benches are arranged on both sides of the bridge for rest. The outside of the bridge is covered by about 1 meter high wooden boards to serve as a fence for the bridge. The two ends of the bridge are built with archway-style bridge pavilions, which are 5 meters high and 6 meters wide. The stone ladder road is connected to a length of 5.5 meters. The Tongjing Bridge is the largest ancient bridge of its kind in Dali Prefecture. It was announced as a cultural relics protection unit in Yunnan Province in 1998.