Great times create great projects, and great projects reflect great times. The Jinan Jinsha River Bridge was completed and opened to traffic on December 31, 2020, which was invested by China Communications Construction Co., Ltd., and undertook by China Communications Second Navigation Engineering Bureau Co., Ltd. and China Communications Second Highway Engineering Co., Ltd. It took 1 hour to drive in the past. The Jinsha River moat, which climbs down the valley and winds hundreds of bends, can now "fly" straight from an altitude of 335 meters in just 1 minute.

Transformation of the Great Wall

The Jin'an Jinsha River Bridge is a "stuck neck" controlled project of the Huali Expressway. The main bridge of the Jinsha River Bridge is a 1,386-meter single-span plate-truss combined with steel truss stiffening beam suspension bridge. It consists of tunnel anchors, cable towers, cable saddles, main cables and plate-truss combined stiffening beams. It is a high-altitude, The steel truss girder suspension bridge in mountainous canyons with complex structure and high technical difficulty is built in the "three high areas" with large height difference and high seismic intensity.

In more than 1,000 days and nights, thousands of builders overcame difficulties, succeeded in dangers, and sought advances from difficulties, braved the sweltering heat and cold, and with their sweat and painstaking effort, they created four world firsts in the history of bridge construction in the world: the world's largest bridge. Suspension bridge in Jingshan area; the world’s first full bridge with U-rib full penetration welding technology; the bridge is 27 meters wide, with a span of 1,386 meters, and the ratio of width to span is 1:51, ranking first in the world; steel truss girder hoisting system span With a diameter of 1,386 meters, it is the largest span cable crane in the field of bridges in the world.

The Jin'an Jinsha River Bridge plays an important role in promoting the development of northwestern Yunnan, poverty alleviation, tourism and other industries, benefiting more than 1.1 million people of all ethnic groups along the route. Editor/Tian Zengpeng