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.
Tuesday, August 12, 2008
The Millau Viaduct
The tallest vehicular bridge in the world - The Millau Viaduct is a large cable-stayed road-bridge designed by the structural engineer Michel Virlogeux and British architect Norman Foster. Its a part of the A75-A71 autoroute axis from Paris to Béziers, formally dedicated on 14 December 2004, inaugurated the day after and opened to public two days later. What makes it special is the fact that it's slightly taller than the Eiffel Tower with its one mast's summit at 343 metres (1,125 ft) and only 38 m (125 ft) shorter than the Empire State Building. Apart from this, its construction broke three world records: the highest pylons in the world, the highest mast in the world and the highest road bridge deck in the world. Scheduled for completion in December 2009 the Chenab Bridge in the Reasi District of Jammu and Kashmir (India) will be 359 metres (1,180 ft) high, and its likely that Millau Viaduct will lose its position as the highest bridge deck in the world.
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