Guangdong Province, south China - Recent
1. Animation of Hong Kong-Zhuhai-Macao Bridge
2. Various of concrete joint to link tunnel
3. Animation showing structural plans of joint
4. Animation showing underwater tunnel
5. Animation showing joint in place
6. Various of giant lifting vessel
7. Various of animation showing process of ship lowering joint into place
8. Various of animation showing interior structure, mechanism of joint
9. Experts assessing plans
10. SOUNDBITE (Chinese) Lin Ming, managing director, Hong Kong-Zhuhai-Macao Bridge Island and Tunnel Project (starting with shots 8-9):
"The joint is completely different with what (we) have experienced before. The trial will check the buoyancy and gravity and if there is some influence or how much these influences will impact on the joint."
11. Various of vessels at tunnel site
12. Radar screen
13. Buttons on vessel's control panel
14. Crane arm

The Hong Kong-Zhuhai-Macao (HKZM) Bridge in Zhuhai City of south China's Guangdong Province will mark another milestone towards its completion this week, with the construction team set to test the installation of the final joint in the project's underground tunnel on Monday and Tuesday.

The move marks the near-completion of the 5,664-meter-long tunnel section of the major engineering project which began construction in 2009.

The joint is a trapezoid-shaped concrete structure, which is 38 meters high, over 11 meters wide and weighs 6,000 tons. It will be installed at a depth of 28 meters deep under the seabed to connect the tunnel.

A giant lifting vessel will carry out the installation procedure against uncertain factors that include winds, ocean currents and buoyancy.

"The joint is completely different from what (we) have experienced before. The trial will check the buoyancy and gravity and if there is some influence or how much these influences will impact on the joint," said Lin Ming, managing director of Hong Kong-Zhuhai-Macao Bridge Island and Tunnel Project.