With an arch span of 550m it has been the longest steel arch bridge of the world - until recently...
![](http://farm2.static.flickr.com/1251/1124560847_ac4fa93b54_b.jpg)
Stitched shot (2 pictures), shot near sunset, giving the pinkish colour cast.
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![](http://farm2.static.flickr.com/1319/1124614333_1a5b17bbd3_b.jpg)
Night panorama stitched from 3 pictures.
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Other steel arch bridges' arch span:
Chaotianmen Bridge, Chongqing, 552m (the new no. 1)
New River Gorge Bridge, West Virginia, 518m
Bayonne Bridge, New Jersey, 504m
Sydney Harbour Bridge 503m
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me.