Jinshajiang Bridge Jinyang

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Jinshajiang Bridge Jinyang
金沙江金阳大桥
Jinyang, Sichuan, China
(328) feet high / (100) meters meters high
1,115 foot span / 340 meter span
2022

Jinyang 340+72+48+32m.jpeg


Located in a remote border region of Sichuan and Yunnan Provinces, the Jinyang Jinshajiang Bridge will be the highlight of a new G7611 expressway between Xichang, Sichuan and Zhaotong, Yunnan. The 205 kilometer route will have 86.6 kilometers of bridges and 55.8 kilometers of tunnels making up 72.4% of the entire route.

The single tower cable stayed span of 340 meters is one of the longest of its type in China. The total length with side spans is 565 meters. The central tower is 197.6 meters tall supported on a foundation 75 meters deep. Approximately half the height of the bridge is hidden beneath a reservoir.


Jinyang Tower.jpeg


JinyangJinshajiangPossible.jpg

Jinyang Jinshajiang Bridge satellite image.


JinyangJinshajiangLocationMap.jpg

Jinyang Jinshajiang Bridge location map.


ZhaotongG7611LargeMap.jpg


The planning of the G7611 Zhaotong Expressway gives a great insight into the design process the Chinese engineers must undertake while planning an extremely mountainous expressway route with more then 72% of the length in tunnels or on bridges.

The difficulty in finding the best route for the G7611 was magnified by the terrain's continuous descent from an elevation of 2,000 meters in Zhaotong to 500 meters at the Jinsha River. Six routes were studied before they chose the red route. Several of the routes include extensive spiral switchbacks to ease the steepness of the grade.


JinyangExpresswayMap.jpg

Regional map showing planned expressways including the Xichang to Zhaotong expressway in red.