Major engineering works have been changing the way millions of people move between cities, especially in regions where the sea, rivers and distance have always made quick connections difficult. In Asia, this bridge, which is the longest in the world, is one of these infrastructures, having become a symbol of this transformation, by bringing together important urban centers and reinforcing one of China’s most strategic economic zones.
The Hong Kong-Zhuhai-Macau Bridge spans the Pearl River Delta and holds the record for the longest sea crossing ever built. With around 55 kilometers, it connects Hong Kong, Zhuhai and Macau, in southern China, and took nine years to build, at an approximate cost of 15 billion pounds, around 17.4 billion euros, according to the British newspaper.
Travel just got a lot shorter
Before the construction of this connection, travel between these cities depended mainly on ferries or longer routes. With the new crossing, a trip that could take around an hour by boat can now be done by car in approximately 40 minutes.
The bridge is part of a broader strategy to strengthen transport links in the Greater Bay Area, a region that the Chinese government has sought to develop as an important economic hub. By bringing Hong Kong and Macau closer to cities in Guangdong province, the infrastructure aims to facilitate trade, the movement of people and regional integration.
A work made on the open sea
The crossing is not just made up of a continuous bridge. The structure includes long-span bridges, artificial islands, tunnels and connecting roads, forming a complex system adapted to one of China’s busiest maritime areas.
The main section includes three bridges over shipping channels, known as Jiuzhou, Jianghai and Qingzhou. These structures were designed to allow the passage of large ships, without interrupting an essential area for maritime transport in the region, according to the previously cited source.
Engineering designed to resist
This construction forced engineers to contend with difficult conditions, including frequent typhoons, strong winds and a demanding maritime environment. These factors made the project more complex, both in terms of safety and the durability of the structure.
The bridge uses single-column pillars driven into the seabed, a solution designed to reduce interference with water flow and limit the impact on marine life. Among the protected species in this area is the Chinese white dolphin, one of the most emblematic animals of the Pearl River Delta.
The three main bridges use cable-supported structures and each have towers with a distinct design. The intention was to create a uniform image, but with different visual elements, considering that the crossing is seen from land, sea and air.
The Jiuzhou Bridge retained its sail-shaped towers even after changes were made during the detailed design phase. This type of architectural option helped give the crossing its own identity, in addition to its practical function.
Connections beyond the bridge
The project also involved several complementary infrastructures, including border facilities, access roads and road links in Hong Kong and Macau. Engineering consultancy Arup participated in different phases of the plan, from preliminary studies to the development of artificial islands, tunnels and accesses, according to The Mirror.
Among the associated works is the Tuen Mun-Chek Lap Kok link, which helps integrate the bridge into the region’s transport network. These connections are essential for the crossing to function not just as an isolated project, but as part of a broader mobility system.
Since its opening, the Hong Kong-Zhuhai-Macao Bridge has become an important route in southern China. More than an engineering record, the infrastructure shows China’s commitment to large transport projects and the creation of faster connections between urban centers with high economic weight.
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