China planning to build world’s longest undersea tunnel by 2026

Originally published on February 14, 2014 ------------------------------------------------------------------------------------------------ Chinese engineers will submit a blueprint to the government by April for the world’s longest undersea tunnel, scheduled to be completed by 2026. If the project is approved, work could start as soon as next year. The tunnel would connect the Chinese port city of Dalian, in Liaoning province, with the city of Yantai, in Shandong province. It would be 123 km long, more t