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重庆有座“纸片桥”,来听听它背后的故事!

China is famous for its impressive infrastructure (基础设施), from suspended “river highways” to surprising overpasses.

For the past couple of years, videos of heavy construction vehicles crossing a narrow bridge suspended about 300 meters above the Dadong River Gorge in Chongqing have constantly been popular on social media, leaving people wondering about its safety. Although it spans 240 meters, this suspension bridge (吊桥) has no towers or base for support, relying only on four steel cables to support vehicles up to 45 tonnes in weight. It’s only wide enough for one vehicle to cross, and despite featuring safety nets on each side, one wrong move can spell disaster. It’s tricky enough to drive the vehicle in normal conditions, but imagine having to do so on a particularly windy day.

Luckily, the Dadong River Gorge suspension bridge in Chongqing’s Wulong District is a temporary project designed to facilitate the construction of an even more impressive piece of infrastructure, Shuangbao Bridge. When completed, it will be the world’s largest double-arch bridge, stretching over both the Dadonghe and Xiaohegou Rivers. But in order to build this structure, workers needed a way to reach the small mountain that would end up supporting its center arch abutments (拱桥台). And that’s when they came up with the idea of a temporary suspension bridge.

Stretching 240 meters across the west side of a massive gorge, the so-called “world’s scariest suspension bridge” is 12 meters wide, but only has a track wide enough for one vehicle to pass at a time. Technically, that is not a problem, as it is only used by trucks and construction machinery working on Shuangbao Bridge, but that doesn’t mean crossing it is easy.

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