The Construction of Hong Kong-Zhuhai-Macao Bridge

The Hong Kong–Zhuhai–Macao Bridge (HZMB) is located at the Pearl River Estuary on the south of China, It is the longest sea-crossing infrastructure made of island, tunnel and bridge. It links Hong Kong in the east with Zhuhai-Macao in the west with a total length of 55 km. The HZMB was built according to the highway standard of due three lanes. It has a design life of 120 years to meet the Hong Kong standard that is the first in China Mainland. The HZMB has greatly improved traffic conditions on the east and west sides of the coast of the Pearl River Estuary and strengthened the communication, transportation, and economic integration of the three regions, thus accelerating the formation of the Guangdong-Hong Kong-Macao Greater Bay Area. This paper outlines the key construction technologies and strategies used in HZMB to provide references for the design and construction of other mega-projects in China or abroad.