TaiShang
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Congrats Guangdong/HK/Macao bros! From a scale point of view, this will surpass ...
Hangzhou Bay Bridge
Operational since 1st May 2008, length 36 km, investment RMB 11.8 billion
Qingdao Bay Bridge
Operational since 30th June 2011, length 36.48 km, investment RMB 9.04 billion
From a technical/engineering point of view, this can rival our ....
Shanghai Yangtze River Tunnel and Bridge
It is a bridge-tunnel complex across the south fork of the Yangtze River near the river mouth in Shanghai. The tunnel connects the Pudong District of Shanghai on the south bank of the river with Changxing Island, while the bridge connects Changxing Island with Chongming Island. In combination with the Chongqi Bridge (opened in December 2011), which connects Chongming Island to the north bank of the Yangtze, the bridge-tunnel complex forms the final crossing of the Yangtze before it empties into the East China Sea. Built from 2005 to 2009 at a cost of 12.6 billion yuan (US$1.84 billion), and opened on 31 October 2009. Their combined length is 25.5 km, forming part of the G40 Shanghai–Xi'an Expressway.
Cross-River Tunnel Section
It is 8.9 kilometres (5.5 mi) in length, and has two stacked levels. The upper level is for a motorway, and has three lanes in each direction. The lower level is reserved for a future Shanghai Metro line. The tunnelling was completed using four world's biggest tunnel boring machines, the largest of which was 15.43 metres in diameter, 135 metres long, and weighed 2,300 tonnes.
Cross-River Bridge Section
It consists of two long viaducts with a higher cable-stayed section in the middle to allow the passage of ships. The total length is 16.63 kilometres, of which 6.66 kilometres (4.14 mi) is road and 9.97 kilometres bridge. The overall shape of the bridge is not linear but slightly sigmoid ("S" shaped). The central cable-stayed span is about 730 metres, the longest span of any bridge in Shanghai, and the 10-th longest cable-stayed span in the world. The bridge has three road lanes in each direction, Room on both flanks of the bridge is reserved for a future Shanghai Metro line, so total deck width is 35.3 m.
China is truly a giant in mega-structures. And this is just the beginning.
