
The Hong Kong-Zhuhai-Macau Bridge will connect a relatively small city on the Chinese mainland with the two Special Administrative Regions of Hong Kong and Macau. It will slash journey times between the three cities from three hours to 30 minutes, putting them all within an hour's commute of each other.

In December 2009, workers took part in an opening ceremony in Zhuhai, in southeast China's Guangdong province, to commemorate the start of construction work on the Hong Kong-Zhuhai-Macau Bridge -- the world's longest sea-crossing bridge.

The Hong Kong-Zhuhai-Macau bridge under construction. After multiple delays, the bridge is due to open in summer 2018. It is considered an engineering wonder and its supporters say it will boost connectivity and tourism in the region. Critics argue that the $20 billion infrastructure mega-project is politically driven and a costly white elephant.

Construction workers building a road in Macau that will connect the territory to the Hong Kong-Zhuhai-Macau Bridge.

A boat transporting construction workers' berths next to a column of the Hong Kong-Zhuhai-Macau Bridge as a plane prepares to land at Hong Kong's international airport.

Construction workers put the finishing touches to a section of the Hong Kong-Zhuhai-Macau Bridge in Zhuhai.

A guard stands in front of toll booths at the Zhuhai entrance to the Hong Kong-Zhuhai-Macau Bridge.

The speed limit on the bridge has been set at 62 miles (100 kilometers) an hour. Cars will drive on the right along the Chinese sections of the bridge, and switch to the left in Hong Kong and Macau, to match the driving styles in each city.

Although the bridge is not yet open to the public, the main construction work has been completed and driving trials are being conducted.

The Hong Kong-Zhuhai-Macau Bridge runs alongside Hong Kong's international airport -- the busiest cargo airport in the world. A key reason for building the bridge is that it will facilitate the export of goods from factories located on the west side of the Pearl River Delta.

The Hong Kong-Zhuhai-Macau Bridge -- from underneath.

China's President Xi Jinping (left) and Hong Kong's chief executive Carrie Lam (center) in Hong Kong, watching a presentation during a visit to the Hong Kong-Zhuhai-Macau bridge on July 1, 2017.


