How was the world's longest arch bridge built? Modern construction techniques. 

How was the world's longest arch bridge built? Modern construction techniques.
With a main span of 575 meters long and an overall length of 1,035 meters, the Pingnan 3rd bridge spanning the Tam Giang River in Pingnan district, Guangxi, upon completion, will become the longest arch bridge in the world. The bridge construction process has applied many advanced and modern technologies to help overcome difficulties and speed up construction progress. In this video, let's see how Chinese engineers built this bridge.
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