China Opens World’s Longest Sea-crossing Bridge

by Kim Boateng Posted on October 23rd, 2018

China President Xi Jinping on Tuesday opened the Hong Kong-Zhuhai-Macau, the world’s longest sea-crossing bridge that links the semi-autonomous cities of Hong Kong and Macau with the city of Zhuhai on the Chinese mainland.

At 55 kilometers, it’s the world’s longest sea-crossing bridge and connects the semi-autonomous cities of Hong Kong and Macau with mainland China. But the project was hit by delays, cost overruns and safety concerns.

Construction began in 2009 but the project has been dogged by corruption prosecutions and the deaths of workers. Delays and cost overruns caused the final price tag of the 55-kilometer (34-mile) bridge to total around $20 billion (€17.5 billion).

The bridge passes through the Pearl River Delta, an important manufacturing region, and is set to cut the time taken to cross the area from several hours to 30 minutes. Authorities will restrict access to the bridge to drivers who have applied for special permits.

China hopes the bridge will bolster economic growth in the region and promote integration between the mainland and the two semi-autonomous cities. Critics have denounced the project’s impact on local wildlife.

Hong Kong and mainland China are already linked by a high-speed railway that opened in September.

The United Kingdom handed over control of Hong Kong to China in 1997 under an agreement that the city would retain partial independence from Beijing until 2047. Portugal transferred sovereignty over Macau to China in 1999.

Eight things you need to know about Hong Kong-Zhuhai-Macao Bridge

As the Hong Kong-Zhuhai-Macao Bridge prepares to open to traffic, here is what you need to know about the world’s longest sea-crossing bridge.

1. Vehicles that could use the bridge

Among the vehicle types authorized to use the Hong Kong-Zhuhai-Macao Bridge, shuttle buses will run only between the ports of Hong Kong and Zhuhai/Macao, not crossing any boundaries.

Cross-boundary coaches via HZMB will operate similarly to current coaches that run between the Chinese mainland and the two special administrative regions through existing ports, such as the Shenzhen Bay Port.

Cross-boundary private cars under quotas for existing boundary crossings (i.e. Shenzhen Bay and Lok Ma Chau) will be allowed to use the Hong Kong-Zhuhai-Macao Bridge without additional procedures on a trial basis.

According to figures from the Transport Department in Hong Kong, the number of Hong Kong cross-boundary private cars issued with valid Closed Road Permits (CRP) was 30,400 as of 2017.

The number of mainland cross-border boundary cars with such permits is more than 20,000, according to the bridge operator, HZMB Authority.

Governments in Hong Kong and the mainland have both promised flexible adjustment of quotas for cross- boundary private cars in accordance with the traffic volume after the bridge opens.

2. On which side of road the vehicles will run

As the bridge is mostly located in mainland waters, vehicles will keep to the right of the road. Cars can change to the left after having passed the boundary checkpoints in Hong Kong and Macao.

3. What’s the toll charge?

The HZMB Authority will be in charge of the bridge toll. The toll will be in yuan. There’s only one toll plaza with 20 toll gates, which is located near the Macao and Zhuhai ports on the mainland side. All toll gates will be available for auto-toll systems in Hong Kong and Guangdong province. Besides cash, bank cards and e-payment such as WeChat Pay and Alipay will be available.

4. Management, customs clearance

The Main Bridge located in mainland waters will be managed by the Hong Kong-Zhuhai-Macao Bridge Authority, which was jointly founded by the governments of Guangdong province, Hong Kong Special Administrative Region and Macao SAR in 2010. It is responsible for the construction, operation, maintenance and management of the Main Bridge. The Authority is located in Zhuhai. Meanwhile, there are monitoring centers and departments charged with responsibilities such as road rescue, maintenance and fire services, on the west and east artificial islands of the bridge, for daily operation, maintenance and emergencies.

The ports in Hong Kong, Zhuhai and Macao will be open 24 hours daily. They are built and managed by local governments respectively.

Zhuhai and Macao will cooperate to implement a one-off customs clearance in the two ports. The two cities will share immigration data, allowing travelers to finish the exit and entry process in one pass.

5. Length, tunnel and artificial islands

HZMB is a 55-kilometer-long bridge-island-tunnel complex across the Pearl River Estuary. It is the world’s longest sea crossing. The bridge consists of a 6.7-km undersea tunnel, which is the country’s first offshore immersed tunnel and the world’s longest immersed tunnel for road traffic. It is connected to the bridge through two offshore artificial islands.

The tunnel is built to reserve room for a planned shipping channel for passenger liners with a displacement of 300,000 tons. As the planned location is close to the Hong Kong International Airport, where there is height limitation in the airspace, a tunnel must be built subsea instead of a bridge with tall towers.

6. When did construction start? What was the cost?

The plan to build a link road across the Pearl River Estuary was first initiated by Hong Kong industrialist Gordon Wu Ying-sheung in 1983. After several twists and turns, the Feasibility Study started in March 2004 under State Council’s approval. The study report was approved in October 2009, followed by a commencement ceremony on Dec 15 in the same year, chaired by then-vice-premier Li Keqiang in Zhuhai.

So far, the total cost of HZMB is about 120 billion yuan ($17.4 billion), of which the 29.6-km Main Bridge invested by three governments is about 48.1 billion yuan. The rest are investments by individual governments on their ports and link roads to the Main Bridge.

The cost allocation among the three governments shown as above is settled by the assessment of economic benefits they can get after the bridge opens.

7. Why build the bridge?

The most important benefit is that the bridge will provide the east and west of the Pearl River Estuary with direct road connections, which can enormously facilitate the development of industries that rely on fast transportation, such as logistics, food and convention and exhibition.

8. Why the bridge does not connect to Shenzhen?

Looking toward the future of the Guangdong-Hong Kong-Macao Greater Bay Area, Liu Xiaodong, a major designer of HZMB said that there will be five bridges across the Pearl River Estuary by around 2035, or one sea crossing every 20 kilometers parallelly.

Future traffic demand was taken into account during the preliminary design for the bridge, back in 2003, Liu said.

“You can’t expect one bridge to meet all needs,” Liu said. “HZMB may not carry the largest traffic volume; as the first sea crossing in the Pearl River Estuary, it will pave the way for the adjustment of industrial structure in the Bay Area,” he said.

HZMB has also accumulated precious experience for similar projects in the future.

The under-construction Shenzhen-Zhongshan Link is a perfect example. Based on technologies, marine data, talents and all the other experience from HZMB, the new link is also a bridge-island-tunnel complex, about 40 kilometers to the north of HZMB.

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Kim Boateng

Kim Boateng

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