World's widest immersed tunnel under construction

Photos taken on June 17, 2020, show the construction site of the Shenzhen-Zhongshan Bridge. The first tube of the world's widest immersed channel in S China was successfully docked with the buried section of the artificial island. The new project, which connects Shenzhen and Zhongshan, is 24 km in length and consists of two artificial islands, two bridges and a two-way, eight-lane tunnel that has a width of up to 46 m, making it the largest and widest immersed tunnel in the world upon completion in 2024.

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