Shanghai Yangtze River Bridge
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The Shanghai Yangtze River Tunnel and Bridge is a bridge–tunnel complex across the south fork of the
Yangtze River The Yangtze or Yangzi ( or ; ) is the longest list of rivers of Asia, river in Asia, the list of rivers by length, third-longest in the world, and the longest in the world to flow entirely within one country. It rises at Jari Hill in th ...
near the river mouth in Shanghai. The tunnel connects the
Pudong Pudong is a district of Shanghai located east of the Huangpu, the river which flows through central Shanghai. The name ''Pudong'' was originally applied to the Huangpu's east bank, directly across from the west bank or Puxi, the historic cit ...
District of Shanghai on the south bank of the river with Changxing Island, while the bridge connects Changxing Island with
Chongming Island Chongming, formerly known as Chungming, is an alluvial island at the mouth of the Yangtze River in eastern China covering as of 2010. Together with the islands Changxing and Hengsha, it forms Chongming District, the northernmost area of the ...
. 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. The bridge and tunnel were built from 2005 to 2009 at a cost of 12.6 billion yuan (US$1.84 billion), and opened on 31 October 2009.Bridge-tunnel linking Chongming Island opens to traffic
''
Shanghai Daily ''Shanghai Daily'' (Chinese: 上海日报, Pinyin: Shànghǎi Rìbào) is an English-language newspaper founded in 1999 and owned by the Shanghai United Media Group, a state media company under the Shanghai committee of the Chinese Communist Party. ...
'', 2009-10-31, retrieved 3 November 2009
Their combined length is , forming part of the
G40 Shanghai–Xi'an Expressway The Shanghai–Xi'an Expressway (), designated as G40 and commonly referred to as the Hushaan Expressway () is an expressway that connects the cities of Shanghai and Xi'an, Shaanxi. It is in length. The expressway was completed after Chongqi B ...
.


Tunnel

The Shanghai Yangtze River Tunnel starts on the south bank of the Yangtze at Wuhaogou,
Pudong Pudong is a district of Shanghai located east of the Huangpu, the river which flows through central Shanghai. The name ''Pudong'' was originally applied to the Huangpu's east bank, directly across from the west bank or Puxi, the historic cit ...
and ends in the south of Changxing Island. It is in length, and has two stacked levels. The upper level is for a motorway, and has three lanes in each direction, with a designed speed of . The lower level is reserved for a future Shanghai Metro line,
Chongming Line The Chongming line () is a rapid transit line on the Shanghai Metro that is part of the 2018–2023 Shanghai Metro plan. The Chongming line was previously treated as the last phase of Line 9, and was Line 19 until 2016, when it was renamed the ...
. The tunnelling was completed using four
tunnel boring machine A tunnel boring machine (TBM), also known as a "mole", is a machine used to excavate tunnels with a circular cross section through a variety of soil and rock strata. They may also be used for microtunneling. They can be designed to bore thro ...
s, the largest of which was in diameter, long, and weighed 2,300t.


Bridge

The Shanghai Yangtze River Bridge starts at the tunnel exit, crosses Changxing Island at ground level, then crosses to Chongming Island, ending at Chenjia Town. It consists of two long viaducts with a higher
cable-stayed A cable-stayed bridge has one or more ''towers'' (or ''pylons''), from which cables support the bridge deck. A distinctive feature are the cables or stays, which run directly from the tower to the deck, normally forming a fan-like pattern ...
section in the middle to allow the passage of ships. The total length is , of which is road and bridge. The overall shape of the bridge is not
linear Linearity is the property of a mathematical relationship ('' function'') that can be graphically represented as a straight line. Linearity is closely related to '' proportionality''. Examples in physics include rectilinear motion, the linear ...
but slightly
sigmoid Sigmoid means resembling the lower-case Greek letter sigma (uppercase Σ, lowercase σ, lowercase in word-final position ς) or the Latin letter S. Specific uses include: * Sigmoid function, a mathematical function * Sigmoid colon, part of the l ...
("S" shaped). The central cable-stayed
span Span may refer to: Science, technology and engineering * Span (unit), the width of a human hand * Span (engineering), a section between two intermediate supports * Wingspan, the distance between the wingtips of a bird or aircraft * Sorbitan ester ...
is about , the longest span of any bridge in Shanghai, and the tenth longest cable-stayed span in the world. The span arrangement is 92+258+730+258+72 m.Q.E. Deng, C.Y. Shao: Recent Major Cable-Stayed Bridges in Shanghai
/ref> The bridge has three road lanes in each direction, with a designed speed of . Room on both flanks of the bridge is reserved for a future metro line, line 19, so total deck width is .


See also

* Yangtze River bridges and tunnels *
Hangzhou Bay Bridge Hangzhou Bay Bridge () is a long highway bridge with two separate cable-stayed portions, built across the mouth of Hangzhou Bay in the eastern coastal region of China. It connects the municipalities of Jiaxing and Ningbo in Zhejiang province. C ...
, a bridge across the
Hangzhou Bay Hangzhou Bay, or the Bay of Hangzhou (), is a funnel-shaped inlet of the East China Sea, bordered by the province of Zhejiang and the municipality of Shanghai, which lies north of the Bay. The Bay extends from the East China Sea to its head ...
connecting
Jiangsu Jiangsu (; ; pinyin: Jiāngsū, alternatively romanized as Kiangsu or Chiangsu) is an eastern coastal province of the People's Republic of China. It is one of the leading provinces in finance, education, technology, and tourism, with its ca ...
and
Zhejiang Zhejiang ( or , ; , Chinese postal romanization, also romanized as Chekiang) is an East China, eastern, coastal Provinces of China, province of the People's Republic of China. Its capital and largest city is Hangzhou, and other notable citie ...
provinces. *
Donghai Bridge Donghai Bridge ( Chinese:  t , s , p ''Dōnghǎi Dàqiáo'', Wu ''Tonhe Dujiau''  "East China Sea Bridge") is a Chinese bridge counted among the longest cross-sea bridges in the world. It was completed on December ...
, a bridge from Shanghai to the island of Yangshan and the
Yangshan Deepwater Port Yangshan could refer to the following places in China: *Yangshan Port (洋山港), part of Port of Shanghai *Yangshan Park Station (羊山公园站), a station on the Line No. 2 of the Nanjing Metro, opened on 28 May 2010 *Yangshan County (阳山 ...
in Hangzhou Bay. * Yangpu Bridge, a cable-stayed bridge across Huangpu River in Shanghai. *
Lupu Bridge The Lupu Bridge (), named after Luwan District, is a through arch bridge over the Huangpu River in Shanghai, China, connecting the city's Huangpu and Pudong districts. It is the world's third longest steel arch bridge, after the Ping'nan Third B ...
, an
arch bridge An arch bridge is a bridge with abutments at each end shaped as a curved arch. Arch bridges work by transferring the weight of the bridge and its loads partially into a horizontal thrust restrained by the abutments at either side. A viaduct ...
across Huangpu River in Shanghai.


References


External links


Shanghai Yantze River Bridge&Tunnel Project Info Website

The world's largest bridge tunnel opened to traffic in Shanghai

SMG:采用最新科技 上海长江隧道做足安全文章新闻午报:上海长江大桥主塔封顶
{{Shanghai Bridges and Tunnels Bridge–tunnels in Asia Road transport in Shanghai Road tunnels in China Bridges in Shanghai Bridges over the Yangtze River Cable-stayed bridges in China 2009 establishments in China