Daduhe Bridge Tianwan

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Daduhe Bridge Tianwan
Shimian, Sichuan, China
(574) feet high / (175) meters high
1,444 foot span / 440 meter span


With a central span of 440 meters, the Daduhe Bridge at Tianwan is one of the 20 longest span arch bridges in the world. The 4-lane crossing is one of two spectacular arch structures on the 97 kilometer Luding to Shimian expressway that was built to accommodate the lake formed behind the massive 210 meter tall Dagangshan Dam.

Just 10 kilometers to the north on the same expressway is the Daduhe Bridge Shaba with an equal sized CFST through arch span of 440 meters.

Located just one kilometer upstream of the Tianwan arch are 2 large beam bridges that cross over tributaries of the Dadu River at a height of 155 meters though most of that is also hidden below the deep reservoir behind the Dagangshan Dam.

The main arch was constructed using the stayed cantilever method whereby a tower is erected on either side of the gorge and cables temporarily radiate out from it to support individual sections of the arch until the two halves can be joined in the middle. A cable high line between the tops of the two towers was used to move the steel sections into place high above the river. Like all of Chinese CFST arches, once the arch was closed, concrete was pumped into the 8 main ribs of the arch span, stiffening and strengthening the entire structure. The total length of the bridge is 521 meters.


Image by Eric Sakowski /


Image by Eric Sakowski /


An upstream view looking west where the Dadu River makes a sharp 90 degree bend at the town of Lianghekou. Two more large beam bridges can be seen under construction in the background. This entire scene is now deep under the lake created by the Dagangshan Dam.


Daduhe Bridge Tianwan satellite image.



Dagangshan Dam satellite image.


Daduhe Bridge Tianwan location map.