The country with the longest bridge in the world is China. This country owns the Danyang – Kunshan bridge (Danyang–Kunshan); get books Guinness World Records recognized in 2011. With a record length of 164,800m, this is a viaduct of the Beijing-Shanghai high-speed railway.

The bridge is located in the Yangtze River Delta; where the geographical location is characterized by low rice fields, canals, rivers and lakes. The bridge runs roughly parallel to the Yangtze River. About 8 to 80 km south of the river. It crosses the edge of urban centers (west to east); starting from Danyang, Changzhou, Wuxi, Suzhou and ending at Kunshan. There is a 9km stretch of water across the Yangcheng Lake in Suzhou.
The cost of building the longest bridge in the world
The bridge was completed in 2010 and in use in 2011. Employing 10,000 workers, construction took 4 years; and cost about $8.5 billion. Dan Duong Bridge – Con Son currently holds the Guinness World Record for the longest bridge in the world in any category as of June 2011.
China Road and Bridge Corporation (CRBC), a subsidiary of China Traffic Construction Company designed and built this bridge. This is a company funded by the Chinese government. Originally part of the Foreign Aid Office of the Ministry of Communications of China. The company leads major civil construction projects in China such as highways, railways, bridges, ports and tunnels.
See also: The largest hydroelectric dam in the world