Shenzhen, Zhongshan links up via mega cross-sea tunnel

The joining of the two sides of Shenzhen–Zhongshan cross-sea link project was completed on June 11. The project is regarded as the world's longest and widest steel shell immersed tube tunnel.

After five years of construction, a "great wall under the sea" was finally forged, which enables Shenzhen and Zhongshan to achieve a connection at the bottom of Lingdingyang.

Of note, the two sides of the Wanqingsha cross-sea bridge, which gives Guangzhou's Nansha district access to the Shenzhen-Zhongshan Link, were connected in May this year.

This bridge is expected to further strengthen the connectivity between Nansha, Shenzhen and Zhongshan, as well as give play to Nansha's geographical advantage as the "heart" of the Guangdong-Hong Kong-Macao Greater Bay Area.

The Shenzhen–Zhongshan Link is a core hub project in the Greater Bay Area. Composed of bridges, man-made islands, a tunnel and an underwater channel, the link has been deemed as the world's most difficult cross-sea cluster project.

A customized vessel carries the last undersea tube for installation. [Photo/WeChat account: nanshafabu]