Longest bridge in the world

http://en.wikipedia.org/wiki/Bang_Na_Expressway
Bang Na Expressway
From Wikipedia, the free encyclopedia
National highway 34
Length (kilometres) 54
Direction:
Start Chalerm Maha Nakhon TerminalBangna
Main destinations Bang Pakong
End Suvarnabhumi Airport
Construction Began 1998
Construction End 2000

The Bang Na Expressway (full name: Bang Na - Bang Pli - Bang Pakong Expressway), officially Burapha Withi Expressway (Thai: ทางพิเศษบูรพาวิถี), is a 54 km long six-lane elevated highway in Bangkok, Thailand. It a toll road that is part of the Bang Na-Trat highway and signed as National Highway 34.
The highway is elevated onto a viaduct (a bridge with many spans) that has an average span length of 42 meters (138 feet). It is a 27-meter (89-foot) wide box girder bridge and was completed in March 2000. It took 1,800,000 cubic meters (2,350,000 cubic yards) of concrete to build the bridge. The spans were constructed using 21,320 pieces of precast concrete. The structure was built using a design-build contracting method and was designed by Jean Muller International.
There are two toll plazas on the elevated structure where the structure must widen to accommodate twelve lanes.
It is the longest bridge in the world, but is excluded on some lists since it does not cross a body of water.