China's largest undersea tunnel, set to be 17.48 km long, is under construction in Qingdao.

Chinese builders are making progress on the world's largest undersea tunnel in Qingdao, Shandong. The Jiaozhou Bay Second Tunnel, set to be 17.48 kilometers long, will link Qingdao's main urban areas with its West Coast New District and is expected to be completed by December 2027. The project includes advanced construction methods like drilling and blasting, and represents a key part of the city's transport network.

November 25, 2024
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