The Hong Kong–Zhuhai–Macau Bridge (HZMB) is a 55-kilometer mega-size sea-crossing bridge linking Hong Kong, Zhuhai, and Macau. HZMB puts major cities in the Pearl River Delta within a three-hour commute from Hong Kong, and it will take only 40 minutes to travel the distance of approximately 42km from Hong Kong Port to Zhuhai Port and Macao Port. It is the longest bridge-tunnel system sea-crossing in the world, crossing the waters of the Lingdingyang channel in the Pearl River Estuary. The bridge–tunnel system consists of a series of three cable-stayed bridges, an undersea tunnel, and four artificial islands. The $26 billion project took almost nine years to complete and opened to the public in October 2018.
Hong Kong–Zhuhai–Macau Bridge is a 55-kilometer bridge-tunnel system consisting of a series of three cable-stayed bridges, an undersea tunnel, and four artificial islands
The bridge reduces the connection time between the three cities in the Great Bay Area and others in a region with a total population of 60 million. In one section, the bridge transitions to an underwater tunnel for 7 kilometers to make way for ships to cross and planes to take off from the nearby Hong Kong International Airport. It is designed to last for 120 years and withstand earthquakes of 8 degrees on the Richter scale. About 400,000 tons of steel was used in the project, equivalent to eight times the amount used to build the Sydney Harbour Bridge. The structure is supported by pillars embedded in the seafloor, cables hanging from giant towers, and four artificial islands.
The bridge is designed to last for 120 years and withstand earthquakes of 8 degrees on the Richter scale
HZMB is 20 times longer than the Golden Gate Bridge in San Francisco
