China has completed shield tunnelling on what is set to become the world's longest undersea highway tunnel beneath Jiaozhou Bay in Qingdao, Shandong Province. The Jiaozhou Bay Second Subsea Tunnel is 17.48 kilometres long, with 9.95 kilometres of the tunnel lying below the water level of the bay. As reported by People’s Daily Online , the completion of the shield tunnelling process took place on July 14. The tunnel is designed for vehicle traffic at speeds of up to 80 km/h. It will link the eastern part of Qingdao city to the Huangdao District of the western region of Jiaozhou Bay.
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