Sidu River Bridge
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Sidu River Bridge 四渡河特大桥 |
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| Coordinates | 30°37′16″N 110°23′42″E / 30.62123°N 110.395088°ECoordinates: 30°37′16″N 110°23′42″E / 30.62123°N 110.395088°E |
| Carries | G50 Shanghai–Chongqing Expressway |
| Crosses | Sidu River |
| Locale | near Yesanguan town, Badong County, Hubei, China |
| Characteristics | |
| Design | Suspension bridge |
| Total length | 1,222 m (4,009 ft) |
| Width | 24.5 m (80 ft) |
| Longest span | 900 m (3,000 ft) |
| Clearance below | 496 m (1,627 ft) |
| History | |
| Designer | CCCC Second Highway Consultants Co. Ltd |
| Opened | November 15, 2009 |
 Sidu River Bridge
Location in Hubei
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The Sidu River Bridge (Siduhe Bridge, 四渡河特大桥) is a 1,222 m-long (4,009 ft) suspension bridge crossing the valley of the Sidu River near Yesanguan in Badong County of the Hubei Province of the People's Republic of China. The bridge was designed by CCSHCC Second Highway Consultants Company, Limited. and built at a cost of 720 million yuan (approximately US$100 million). It opened to traffic on November 15, 2009.
The bridge is part of the new G50 Huyu Expressway that parallels China National Highway 318, an east-west route between Shanghai and Chongqing, crossing the wide belt of mountains that separate the Sichuan Basin from the lowlands of eastern Hubei. The Yangtze River pierces the same mountain belt 50 km (31 mi) to the north, forming the famous Three Gorges. The Yiwan Railway, completed in 2010 and running parallel to the highway, has been described as China's most difficult to build and most expensive (per km) rail line.
The bridge spans a 500-meter (1,600 ft) deep valley of the Sidu River (a left tributary of the Qingjiang River), and superseded the Royal Gorge Bridge and the Beipan River Guanxing Highway Bridge as the highest bridge in the world until it in turn was surpassed by the Duge Bridge in 2016.
The bridge's design includes H-shaped towers, a truss-stiffened main span, and unsuspended side spans. The Warren-type trusses were constructed in seventy one sections with the largest section weighing 91.6 metric tons (101.0 short tons). The trusses are 6.5 m (21 ft) tall and 26 meters (85 ft) wide.
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