Nam Wan Tunnel is a tunnel in Hong Kong opened to traffic on 20 December 2009, along with the West Tsing Yi Viaduct, East Tsing Yi Viaduct and Stonecutters Bridge. The road tunnel, which forms an important part of the HK$15 billion Route 8, linking Tsing Yi and Sha Tin in the city, has been under construction since 2003 and was completed in 2007.
The twin-tube tunnel, built by the Hong Kong Highways Department, is 1.2 kilometres (0.75 mi) long and has three lanes in either direction in the southern part of Tsing Yi from Sai Tso Wan to Nam Wan Kok. It provides linkage between the eastern part of the New Territories and Hong Kong International Airport. The tunnel is toll-free.
The twin tunnels are 15 metres (49 ft) wide with 12 cross-passages and emergency walkways, and a portal building at each end. They were formed by blasting through granite and volcanic rocks.
Read more about Nam Wan Tunnel: Structure, Tunnel Spoil, Environmental Measures During Construction, Ventilation, Electrical and Mechanical Systems, Walk For Millions
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