Navigable aqueducts are bridge structures that carry navigable waterway canals over other rivers, valleys, railways or roads. They are primarily distinguished by their size, carrying a larger cross-section of water than most water-supply aqueducts. Although Roman aqueducts were sometimes used for transport, aqueducts were not generally used until the 17th century when the problems of summit level canals had been solved and modern canal systems were developed. The 662-metre long steel Briare aqueduct carrying the Canal latéral à la Loire over the River Loire was built in 1896. It was ranked as the longest navigable aqueduct in the world for more than a century, until the Magdeburg Water Bridge in Germany took the title in the early 21st century.
China Communications Construction Company, Ltd. (CCCC) is a publicly-traded, multinational engineering and construction company primarily engaged in the design, construction and operation of infrastructure assets, including highways, bridges, tunnels, railways, subways, airports, and marine ports. Through its subsidiaries, CCCC has full EPC capabilities and actively pursues P3 projects, often acting as concessionaire. In addition, the company provides dredging services, and engages in oil platform design and construction.
The Beipan River Guanxing Highway Bridge or Beipanjiang River 2003 Bridge is a 366-metre-high suspension bridge on the Guanxing Highway near Xingbei Town (Xinbeizhen), Zhenfeng County, Guizhou Province, China. The bridge has a span length of 388 metres. When it opened in 2003 it was the world's highest bridge. It held that title until the opening of the Hegigio Gorge Pipeline Bridge in 2005.
Liuguanghe Bridge is a 305 metre high beam bridge at Liu Guangzhen, Guizhou, China. It held the record for world's highest bridge between 2001 and 2003, surpassing the 72-year-old 291 m (955 ft) high Royal Gorge Bridge, until the opening of the 366 m (1,201 ft) Beipan River Guanxing Highway Bridge. As of 2011, it is still the highest beam bridge and is among the twenty highest bridges in the world.
Zhijing River Bridge was the highest arch bridge in the world upon its completion in 2009. The 294 metres high bridge in the Three Gorges region of China carries the G50 Shanghai–Chongqing Expressway across the valley of the Zhijing River, a northern tributary of the Qing River. With a main span of 430 metres the bridge is also one of the 20 longest arch bridges in the world. The bridge is located between the towns of Yesanguan and Dazhiping in Badong County of the Enshi Tujia and Miao Autonomous Prefecture of Hubei Province. The world's highest bridge the Sidu River Bridge is situated only 20km eastwards along the G50 Shanghai–Chongqing Expressway.
The Beipan River Shuibai Railway Bridge was the world's highest railway bridge from 2001 to 2016. The bridge spans a deep canyon on the Beipan River near the city of Liupanshui in Guizhou province, China. The arch bridge, with a maximum height of 275 metres and a span width of 236 metres, was built in 2001 with the construction of the Shuibai Railway.
The Langwieser Viaduct is a single track reinforced concrete railway bridge spanning the Plessur River and the Sapünerbach, near Langwies, in the Canton of Graubünden, Switzerland.
The Wushan Yangtze River Bridge is an arch bridge, which carries S301 Provincial Road across the Yangtze River near Wushan, Chongqing, China. Completed in 2005, the 130 metres (430 ft) high arch spans 460 metres (1,510 ft) ranking it in the top ten longest arch bridges in the world. The bridge is also among the highest in the world however, the reservoir created by the construction of the Three Gorges Dam has increased the height of the water below the bridge, and the full 180 metres (590 ft) clearance is no longer visible.
The Daning River Bridge is an arch bridge near Wushan, Chongqing, China. The bridge opened in 2009 carrying traffic on the G42 Shanghai–Chengdu Expressway across the Daning River. The bridge spans 400 metres (1,300 ft) making it one of the longest arch bridges in the world. The bridge is also among the highest in the world however the reservoir created by the construction of the Three Gorges Dam has increased the height of the river below the bridge and the full 219 metres (719 ft) clearance is no longer visible.
The Wanzhou Railway Bridge is an arch bridge in Wanzhou, Chongqing, China. The bridge was completed in 2005 and carries the Yichang−Wanzhou Railway across the Yangtze River. The bridge spans 360 metres (1,180 ft) making it one of the longest arch bridges in the world.
Xixi Bridge is a 701 metres (2,300 ft) long suspension bridge on the border of Dafang County and Qianxi County in Guizhou, China. The bridge forms part of China National Highway 321 between Bijie and Guiyang. As of 2012, it is among the forty highest bridges in the world sitting 218 metres (715 ft) above the natural river level. The reservoir from the Hongjiadu Dam on the Liuchong River extends below the bridge and when full, it reduces the clearance below the bridge to 165 metres (541 ft).
The Dashengguan Yangtze River Bridge crosses the Yangtze River in Nanjing, Jiangsu. Construction of the bridge started in 2006 and it was completed in 2010. The bridge has two main spans of 336 m (1,102 ft) it is one of the largest arch bridges in the world. It carries six tracks: two for the Beijing–Shanghai High-Speed Railway, two for the Shanghai–Wuhan–Chengdu high-speed railway and two for line S3 of the Nanjing Metro.
The Yachi River Bridge is a cable-stayed bridge in Guizhou, China. The bridge is the fourth highest in the world. It is also one of the longest cable-stayed bridges with a main span of 800 m (2,600 ft). The western tower is 258.2 m (847 ft) placing it amongst the tallest bridges in the world. The eastern tower is 243.2 m (798 ft). The bridge crosses the Yachi River between Qianxi County in Bijie and Qingzhen in Guiyang. The bridge carries traffic on the Guiyang to Qianxi Expressway.
The Qingshui River Bridge is a suspension bridge in Guizhou, China. The bridge, measuring 406 m (1,332 ft) above the Qingshuihe River, is the third highest suspension bridge in world. It is also one of the longest bridges with a main span of 1,130 m (3,710 ft).
The Najiehe Railway Bridge is a steel arch bridge in central Guizhou, China. With a rail height of 305 m (1,001 ft), this is the highest railway bridge in world. The truss arch is also one of the longest arch bridges with a main span of 352 m (1,155 ft). The bridge crosses the Sancha River between Zhijin in Bijie and Qingzhen in Guiyang. The bridge is part of the new Lindai-Zhijin Railway line between Zhijin County and Guiyang.
Qinglong Railway Bridge is the world's longest span concrete arch bridge located in Qinglong County, Guizhou. The bridge forms part of the High speed railway line between Guiyang and Kunming. It crosses the Beipan River just downstream of the Guangzhao Dam. The bridge is almost 300 metres above the river making it the highest High speed railway bridge ever built.
The Lancang River Railway Bridge is an arch bridge under construction linking the cities of Baoshan and Dali in western Yunnan Province, China. Once completed, the bridge will be one of the highest in world, sitting 271 m (889 ft) above the Lancang River. The bridge's main span will be 342 m (1,122 ft) making it also one of the longest arch bridges ever built. The bridge is expected to be completed in 2019.
The Guiyang–Kaiyang intercity railway is a higher-speed railway within Guizhou province, connecting the provincial capital of Guiyang to Kaiyang. Line starts at Guiyang North Station, travelling 62 km (39 mi) north-east to Kaiyang Station.
The Liuguanghe Xiqian Expressway Bridge is a 375 metres high cable-stay bridge crossing the Yachi River between Xiuwen, Guiyang, and Qianxi, Bijie in Guizhou, China.
