Tunnels are underground passages built for smooth passage of road or rail traffic. They are usually cut through rocks or mountains to make the shortest route between the two places. Tunnels are constructed using latest technology and are the result of the progress which has been made by mankind. There are many of long tunnels in use around the world, while some are under construction and other are in the planning stage.
Here is the list of longest road tunnels in the world:
10. Maijishan Tunnel, China
On number 10 spot in the list of longest road tunnels in the world in the world is Maijishan Tunnel in China, which extends to a length of 12.29 km. It was completed in 2009 and has two tubes.
9. Frejus Tunnel, France-Italy
Featuring next on this list is the Frejus Tunnel in France and Italy, which is 12.895 km long. The single tube tunnel was completed and opened for public in 1980.
8. Hsuehshan Tunnel, Taiwan
Hseuhshan Tunnel in Taiwan is the eighth longest road tunnel in the world. This 12.942 km long road tunnel has been in service since 2006 and it has two tubes.
7. Hongtiguan Tunnel, China
The next name on the list of top 10 longest road tunnels in the world in 2015 is that of the Hongtiguan Tunnel in China. This two tube tunnel was opened up in 2013 and reaches a great length of 13.122 km.
6. Xishan Tunnel, China
On number six spot in this list is another road tunnel in China, the Xishan Tunnel, which extends to a length of 13.654 Km. This tunnel has two tubes and was completed in 2012.
5. Arlberg Tunnel, Austria
Arlberg Tunnel in Austria is the fifth longest road tunnel in the world, which is 13.972 km long. This single tube tunnel has been operating since 1978 and was the longest road tunnel in the world till 1980.
4. St Gotthard Tunnel, Switzerland
Next among the top 10 longest road tunnels in the world is the St Gotthard Tunnel in Switzerland, which reaches a length of 16.918 km. This single tube tunnel opened in 1980 and overtook the Arlberg Tunnel to become the longest road tunnel in the world. It held this position till 2000.
3. Jinpingshan Tunnel, China
The number three position on this list is occupied by the 17.540 km long Jinpingshan Tunnel. The tunnel, which became operational in 2011, has two tubes and connects the sites of Jinping I and Jinping II Hydro Power Station.
2. Zhongnanshan Tunnel, China
The next name on the list of longest road tunnels in the world in 2015 is that of Zhongnanshan Tunnel in China, which is 18.04 km. This two tube tunnel was opened in 2007.
1. Laerdal Tunnel, Norway
The famous Laerdal Tunnel of Norway is the longest road tunnel in the world in 2015. This single tube tunnel was completed in 2000 and reaches an amazing length of 24.510 km.
Some other road tunnels which are acclaimed for their amazing length are Mt Blanc Tunnel (France-Italy), Gudvangen Tunnel (Norway), Baojiashan Tunnel (China) and Folgefonna Tunnel (Norway).