The Longest Bridges of The World.

This is a list of the world's bridges longer than 2 kilometres (6,562 ft) sorted by their full length above land or water. "Span" refers to their longest span without ground support. Of the top ten, seven are located in China, and two are located entirely within the U.S. state of Louisiana.

Note: There is no standard way to measure the total length of a bridge. Some bridges are measured from the beginning of the entrance ramp to the end of the exit ramp. Some are measured from shoreline to shoreline. Yet others are the length of the total construction involved in building the bridge. Since there is no standard, no ranking of these bridges should be assumed because they are at a specific position in this list. Additionally, numbers are merely estimates and measures in U.S. customary units (feet) may be imprecise due to conversion error.

Source:wikipedia.

Name	Length metres (feet)	Traffic	Country
Danyang–Kunshan Grand Bridge[1] Beijing–Shanghai High-Speed Railway	&0000000000164800000000164,800 m (540,700 ft)	High-speed rail	People's Republic of China
Tianjin Grand Bridge[2] Beijing–Shanghai High-Speed Railway	&0000000000113700000000113,700 m (373,000 ft)	High-speed rail	People's Republic of China