Bang Na Expressway

The Bang Na Expressway was conceived by the Expressway and Rapid Transit Authority of Thailand (ETA) and Sukavich Rangsitpol, deputy prime minister of Chuan Leekpai Cabinet (1992–1995). The structure was built using a design-build contracting method. The columns and superstructure were designed by Jean M. Muller (U.S.) and the alignment and foundations were designed by Asian Engineering Consultants (Thailand). The owner's designer and engineer was the late Louis Berger of the Louis Berger Group and the project was built by a joint venture of Bilfinger & Berger (Germany) and Ch. Karnchang (Thailand). It took of concrete to build the bridge. The bridge was completed in January 2000. The expressway was opened in its entirety on 7 February 2000. == Structural description ==

The highway is elevated onto a viaduct that has an average span length of . It is a box girder bridge. There are two toll plazas on the elevated structure where the structure must widen to accommodate twelve lanes. The toll system is done by Kapsch TrafficCom AB (Sweden). Route This expressway has toll plazas for both entry and exit. This table only displays toll plazas for entry onto the expressway. == Records ==

The world's longest car bridge, the Bang Na Expressway held the title of the world's longest bridge from 2000 until 2008. Today, it is the seventh longest bridge in the world. == See also ==