Admire the world's longest sea crossing bridge: 55km, $ 18 billion in China

The bridge was built in 2009, spanning 55km of waters connecting Hong Kong to Mainland China.

The workers used 420,000 tons of steel to build the bridge, the equivalent of enough to build 60 Eiffel towers. Local officials expect the bridge to last up to 120 years and reduce travel time between the two areas by 60%.

Reportedly, Chinese President Xi Jinping will attend the opening ceremony of the bridge.Hong Kong - Chau Hai Seaway Bridge - Macau consists of a snake-like road and a subterranean tunnel, connecting Lantau Island - Hong Kong to the south of China, ie Hai Hai City, and the capital post. Macau silver, across the Pearl River estuary.

With a length of 55km, China's overpass is 22km longer than the British tunnel from Dover of the United Kingdom to Calais of France.

The bridge looks from above.

The interior of the house awaits passengers at the port of Hong Kong where the bridge passes.

This is a bus ticket at the waiting house.

This architecture is the longest cross-sea bridge in the world, and the sixth longest bridge on Earth. Officials expected it to help boost trade through cutting travel time by 60%.

More importantly, this is an important component in the construction plan of the Great Bay Area covering 56,500 km ² across 11 cities in southern China.

This sea bridge consists of a 22.9km long section floating on the front, and a 6.7km long tunnel under the water, interconnected by two artificial islands.

A total of 420,000 tons of steel was used in the project, equivalent to 60 times the amount of steel used to build the Eiffel Tower.

Hong Kong Minister of Transport and Housing, Frank Chan, said the travel time between Hai Phong and Hong Kong International Airport will be shortened to about 45 minutes, compared with the previous 4 hours.

"It will help boost trade, logistics, and tourism cooperation between Guangdong, Hong Kong and Macau" - he said.

However, this huge project also encountered many controversies because of many delays, exceeding budget estimates, accusing corruption and causing the deaths of many workers.

Scene of Artificial Island to the east of Hong Kong Bridge - Chau Hai - Macau.

Door entry system at entry gate of the bridge.

The entire cost of the project, including artificial islands, links and other cross-border works is not clearly stated, but it is estimated that this number falls to more than $ 18 billion, making it is judged to be too costly while benefits are unclear.

During construction, 7 workers were killed and 129 were injured. Most of them fall or fall from high positions. Supporters of the bridge praised it as an architectural wonder, while others recognized it as a costly project.