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Underwater Expressway Tunnel in Operation
A car runs through the Outer Ring Road Tunnel in Shanghai, east China, June 21, 2003. The 2,880-meter-long, eight-lane Outer Ring Tunnel or the 'Wai Huan Tunnel,' which runs under the Huangpu River, is Asia's longest submerged tunnel. Three thousand construction workers spent three and a half years to complete the project, which costs more than 10 billion yuan (US$1.2 billion). It was constructed to reduce traffic congestion in and around China's biggest city.

(Xinhua News Agency June 22, 2003)

'Milestone' Tunnel Opens in Shanghai
Asia's Longest Submerged Tunnel to Open to Traffic
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