China plans to build the world’s longest underwater tunnel beneath the Bohai Sea by 2026, with a blueprint expected to be submitted to the State Council in April, China Daily reported Friday. “Once approved, work could begin as early as 2015 or 2016,” Wang Mengshu, a tunnel and railway expert at the Chinese Academy of Engineering who has worked on the plan since 2012, was quoted as saying. The project is estimated to cost about 220 billion yuan (US$36 billion). The 123-km underwater tunnel will house a rail line connecting the port cities of Dalian in Liaoning province and Yantai in Shandong province. It will surpass the combined length of the world’s two longest underwater tunnels — Japan’s Seikan Tunnel and the Channel Tunnel between Britain and France, the report said.
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