Hong Kong-Zhuhai-Macao highway sea link immersed tube construction
Hong Kong-Zhuhai-Macao highway sea link immersed tube construction

October 2018: Vital to the 55km long Hong Kong-Zhuhai-Macao fixed sea link highway is its 6.7km long immersed tube tunnel under the shipping channels of the Pearl River estuary and the two artificial islands that provide the transition from the landfall bridges into the undersea six lane carriageway. Several technological firsts contributed to the construction of the immersed tube and the two artificial islands, which together create the longest and deepest immersed tube tunnel in the world. The project - as an outstanding feat of engineering and the result of tremendous human effort - was opened officially on 23 October 2018 by President Xi Jinping of China.


References
Hong Kong-Zhuhai-Macao sea link project begins - TunnelTalk, June 2011