Longest Bridges in the World

1. Danyang-Kunshan Grand Bridge;

The Danyang–Kunshan Grand Bridge is the world’s longest bridge. It is a 164.8 kilometres (102.4 mi) long.

It was completed in 2010 and opened in 2011. Employing 10,000 people, construction took four years and cost about $8.5 billion.Danyang–Kunshan Grand Bridge currently holds the Guinness World Record for the longest bridge in the world in any category as of June 2011.

2.     Tianjin Grand Bridge;

Tianjin Grand Bridge is a railway viaduct  bridge that runs between Langfang and Qingxian, part of the Beijing–Shanghai High-Speed Railway. Its total length is about 113,700 m (373,000 ft), or 113.7 kilometres (70.6 mi).  It was completed in 2010 and opened in 2011. As of 2011 Guinness World Records recorded it as the second longest bridge in the world.

3.      Weinan Weihe Grand Bridge;

The Weinan Weihe Grand Bridge is part of the Zhengzhou–Xi'an High-Speed Railway which connects Zhengzhou and Xi'an, in China. The bridge is 79,732 metres (261,588 ft) (49.5 Miles) long crossing the Wei River twice, as well as many other rivers, highways and railways. Upon its completion, it was the longest bridge in the world, but surpassed by two new bridges on Beijing–Shanghai High-Speed Railway that completed in 2010.

The bridge was completed in 2008 but the railway line itself did not open until February 6, 2010.

4.     Bang Na Expressway;

The Bang Na Expressway is a 55 km long six-lane elevated highway in Thailand. It is often considered to be one of the longest bridges in the world (until 2010 the longest) but it is excluded from some lists since it does not cross a body of water for most of its length. The largest body of water that it crosses is the Bang Pakong River. It is a 27-meter wide box girder bridge and was completed in January 2000. It took 1,800,000 cubic meters of concrete to build the bridge. 

5.     Beijing Grand Bridge; 

Beijing Grand Bridge is a 48.153 kilometres (29.921 mi) long railway viaduct  on the Beijing–Shanghai High-Speed Railway, located in Beijing. It was completed in 2010 and opened in 2011. It is one of the longest bridges in the world.

6.     Lake Pontchartrain Causeway;

The Lake Pontchartrain Causeway, sometimes only the Causeway, is a causeway composed of two parallel bridges crossing Lake Pontchartrain in southern Louisiana, United States. The bridges are supported by 9,500 concrete pilings.

Since 1969, it was listed by Guinness World Records as the longest bridge over water in the world.  It opened in 1956 at a cost of $30.7 million.

7.     Manchac Swamp Bridge;

The Manchac Swamp Bridge is a twin concrete trestle bridge in the US state of Louisiana with a total length of 22.80 miles (36.69 km). The bridge carries Interstate 55 over the Manchac Swamp in Louisiana, and represents one-third of the highway's approximately 66 miles in Louisiana. Opening in 1979, its piles were driven 250 feet (76 m) beneath the swamp and with the cost of the span being $7 million per mile to complete.

8.     Hangzhou Bay Bridge;

Hangzhou Bay Bridge is a highway bridge with a cable-stayed portion across Hangzhou Bay in the eastern coastal region of China. It connects the municipalities of Jiaxing and Ningbo in Zhejiang province.

Construction of the bridge was completed on June 14, 2007, and an opening ceremony was held on June 26, 2007. The bridge was not opened to public use until May 1, 2008, after a considerable period of testing and evaluation. At 35.673 km (22 mi) in length, Hangzhou Bay Bridge was among the ten longest trans-oceanic bridges when it opened.

9.       Runyang Bridge;

The Runyang Bridge is a large bridge complex that crosses the Yangtze River in Jiangsu Province, China, downstream of Nanjing. The complex consists of two major bridges that link Zhenjiang on the south bank of the river and Yangzhou on the north. The bridge is part of the Beijing-Shanghai Expressway. Construction of the bridge complex began in October 2000. The bridge cost 5.8 billion Yuan (about US$ 700 million). The complex opened to traffic on April 30, 2005. The total length of the bridge complex is about 35.66 kilometres (22.16 mi). 

10.  Donghai Bridge; 

Donghai Bridge is one of the longest cross-sea bridges in the world. It was completed on December 10, 2005. It has a total length of 32.5 kilometres (20.2 mi) and connects mainland Shanghai and the offshore Yangshan deep-water port in China. There are also cable-stayed sections to allow for the passage of large ships, largest with span of 420 m. Donghai Bridge is part of the S2 Hulu Expressway.