China is close to opening its latest mega infrastructure project - a bridge across Hong Kong's Pearl River Estuary to link Macau with Hong Kong.
The bridge cost about ¥11billion (NZ$23billion) and is composed of bridge, reclaimed land, artificial islands and an undersea tunnel.
It will significantly cut travel times between Hong Kong, Macau and the mainland, Australia's ABC reports.
A return trip from Hong Kong to Macau by road currently takes about five hours in good traffic - the new bridge will cut that time to about one hour.
The 6km undersea tunnel portion will allow ships to pass unimpeded, and height restrictions had to be adhered to also, due to the bridge being in the flight path of Hong Kong Airport.
The first cars are set to begin crossing on June 1, and with different traffic rules in each special administrative region, it may take some time for drivers to get used to the change.
The project sets a new record for the world's longest sea bridge - but is still short of the world's longest bridge, which is the 164km rail line between Shanghai and Nanjiang.
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