Daduhe Bridge Tianwan
Daduhe Bridge Tianwan
田湾大渡河特大桥
Shimian, Sichuan, China
(607) feet high / 185 meters high
1,529 foot span / 466 meter span
2017
With a central span of 466 meters, the Daduhe Bridge at Tianwan is one of the 10 longest span arch bridges in the world. The 4-lane crossing is the most spectacular structure on the Luding to Shimian expressway that was built to accommodate the lake formed behind the massive 210 meter tall Dagangshan Dam. Located just a kilometer upstream of the Tianwan arch are 2 large beam bridges that cross over tributaries of the Dadu River at approximately the same height of 185 meters.
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.
Image by Eric Sakowski / HighestBridges.com
Image by Eric Sakowski / HighestBridges.com
Image by Eric Sakowski / HighestBridges.com
The full height of the old level of the Yangtze River can be seen in this construction view. The top of the arch is about 800 feet (244 meters) above the water.
Wushan Yangtze River Bridge construction plan.
The 3 Gorges reservoir had already begun to fill up beneath the arch in this view.
Image by Eric Sakowski / HighestBridges.com
Image by nipic.com / moriwuyu
Image by Eric Sakowski / HighestBridges.com
Image by Eric Sakowski / HighestBridges.com
One of the massive arch pins is positioned into place. The foundation was then built over the pin connection.
Image by Eric Sakowski / HighestBridges.com
Wushan City adjustable level dock elevator. Image by Eric Sakowski / HighestBridges.com
