The world's longest sea-spanning bridge, design life 120 years, the Y-shaped bridge links Hongkong Special Administrative Region, Zhuhai and Macao Special Administrative Region,

Tunnel depth more than 49 meters under sea level, , 6.7km undersea tunnel, 35km over the sea.

Steel usage of main bridge: 400,000tons, equivalent to 60 Eiffel Towers.

Strength to withstand : Magnitude 8 earthquake, typhoons up to Gale Force 16.

Total cost: 120 billion yuan($17.3 billion)

Travel time between Hong Kong and Zhuhai from 210 minutes to 30 minutes.

Planning period 5 years, construction period 9 years(2009-2018)

Port hours: 24 hours daily

Customs clearance: exit and entry process in one operation in Zhuhai and Macao ports