The Shenzhen-Zhongshan Link, a 24-kilometer dual eight-lane corridor, is a world-class cross-sea cluster integrating bridges, islands, tunnels, and underwater interchanges. The project drove innovation through advanced construction techniques, custom core equipment like integrated vessels for immersed tube transport and gravel leveling, and pioneering solutions for final joint closures, effectively overcoming complex global tunneling challenges. The opening of the project on June 30, 2024, has significantly enhanced the transportation network across the Guangdong-Hong Kong-Macao Greater Bay Area.