ChinaThe 798-meter Lvzhijiang Suspension Bridge between two steep cliffs in Yunnan will open to traffic at the end of next month.
The Lvzhijiang Suspension Bridge spans the river valley. Photo: CNN
Stretching 798 meters across a river valley, the complexity of the Lvzhijiang Bridge makes it an engineering marvel. The bridge hangs over the Lvzhijiang River and juts out of a tunnel on steep mountain faces on either side of the valley. According to Chinese authorities, the bridge broke several world records.
Built in a V-shaped valley in the mountains, it is the world’s longest single-span suspension bridge with a single pylon and no other piers. Authorities say the bridge spans 780 meters. In addition, this bridge also has the steepest cable anchor in the world, with an angle of 54 degrees.
Due to the rugged terrain of the area, all major supports including the 156 m high pier, concrete slab leading to the bridge and anchor cables were built on the slopes. The project manager shared the height difference between the bridge deck and the 320 m assembly yard, equivalent to 100 floors. Few buildings in China have such complexity.
This bridge will greatly shorten the travel time between Yuxi City and Yi Chuxiong Autonomous Region in Yunnan. The maximum speed limit on the bridge is 100 km/h. Starting construction in 2019, the project took 4 years to complete. As expected, the bridge will open to traffic at the end of April 2022. Yuxi and Yichuxiong Autonomous Prefectures are both located in central Yunnan province, between major cities such as Kunming and Dali.
The Lvzhijiang Bridge is an important part of the 190-kilometer Yuchu Expressway and the 9,000-long Yunnan Expressway network. The Yuchu Expressway connects Yunnan with other important national roads such as the Hengzhou – Ruili and Guangzhou – Kunming routes.
a khang (Based on CNN)
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