The Hong Kong–Zhuhai–Macau Bridge (Chinese: 港珠澳大橋) is an ongoing construction project which consists of a series of bridges and tunnels crossing the Lingdingyang channel that will connect Hong Kong, Macau and Zhuhai, three major cities on the Pearl River Delta in China. The 50 kilometres (31 miles) link is expected to cost US$10.6 billion (HK$83 billion). With its length, it would become one of the landmarks within the area. The longest bridge section will be 29.6 kilometres (18.4 mi) long and will include three cable-stayed spans between 280 and 460 metres (920 and 1,510 ft).

Construction formally began on 15 December 2009. The last bridge tower was erected on 2 June 2016. The last straighted-element of the 4860 meter long immersed tunnel was installed on 12 July 2016. Originally set to be opened to traffic on 15 October 2016 the project is at least a year late and now is due to open in December 2017.

In 1982, the rapid growth and demand of cross-border traffic prompted an agreement between the Hong Kong government and the Shenzhen authorities. This agreement suggested an improvement of connections by opening up new road links.

Continuous expansion works have been done at the existing crossings to meet the increasing demand for passenger handling capacity.

In order to provide long-term relief to the traffic congestion, various projects have been approved and endorsed. The Hong Kong Government and the relevant China authorities have identified the need to open new border crossings. At the third meeting of the China/Hong Kong Conference on the Co-ordination of Major Infrastructure Projects (the Conference) held on 20 September 2002, it was agreed that a joint study should be conducted on the transport linkage between Hong Kong and Pearl River West.

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