The Western Harbour Crossing opened to traffic on April 30, 1997.

It is the third road tunnel to be built under Hong Kong harbour, running from the reclaimed land at West Kowloon to Sai Ying Pun on Hong Kong Island.

The six-lane tunnel has a capacity of 180,000 vehicles daily, far greater than that of the existing four-lane tunnels.

The toll for private cars and taxis using the tunnel is $30 each way. An additional fare of $40 is added to the taxi fare for a taxi passenger using the Western Harbour Tunnel.

The project was undertaken by a private company under a 30-year franchise agreement with the Government.

Total length	-- two kilometres
Length of immersed tube	-- 1.3 kilometres
Concrete units in immersed tube	-- 12
Weight of concrete units	-- 35,000 tonnes