Discover how China built the incredible Baijusi Yangtze River Bridge — an impossible mega bridge carrying eight highway lanes above and a metro line below on a single structure.
Spanning 660 meters across the Yangtze River in Chongqing, this massive road–rail bridge had to overcome extraordinary engineering challenges. Seven active railway tracks, busy roads, port operations, and dense urban infrastructure left engineers with extremely limited space to build.
In this engineering documentary, follow the construction process from massive foundations and 236-meter water-drop-shaped towers to the inverted-trapezoidal steel truss, stay cables, and final closure of the 660-meter main span.
See how construction crews installed huge steel sections above seven operating railway tracks during tightly controlled nighttime windows, while engineers built the bridge outward across the Yangtze without temporary supports in the center of the navigation channel.
The result is an extraordinary transportation system in one structure — eight highway lanes above, metro trains below, and one incredible mega bridge connecting Chongqing across the Yangtze River.
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