The installation of the last standard immersed tube of the Shenzhen-Zhongshan Bridge was completed in south China's Guangdong Province on October 21. The 24-kilometer-long Shenzhen-Zhongshan Bridge is a major national project that includes a 5,035-meter-long immersed tunnel made up of 32 immersed tubes and one final joint. The Shenzhen-Zhongshan Bridge is a super sea-crossing project integrating bridges, islands, tunnels, and underwater channels. It is expected to open to traffic in 2024. It will cut the commuting time between the two cities from two hours to 20 minutes.