A railway tunnel is a railway track that runs beneath the earth’s surface or under the sea. There are several railway tunnels in the world, and they vary in length from short tunnels to tunnels that stretch for dozens of miles.
The Seikan Tunnel is a dual gauge railway tunnel located in Japan which connects the islands of Hokkaido and Honshu. Stretching over 33 miles, the Seikan Tunnel is the longest railway undersea tunnel and is the second longest railway tunnel after the Swiss Gotthard Base Tunnel. The railway tunnel is also the deepest in the world with a depth of 459 feet below the sea level. Before the Seikan Tunnel was constructed, people would cross the two islands by use of five ferries. However, after the Second World War, the Japanese economy saw double-digit growth and with it came an influx of traffic which overwhelmed the ferry service. This issue prompted the Japanese government to seek an alternative, and hence the idea of the undersea railway tunnel was conceived. The tunnel was constructed by the Japanese government in 1971 and was opened in 1988 at the cost of about $3.6 billion.
Gotthard Base Tunnel
The Gotthard Base Tunnel is located in Switzerland. With a total length of 35.5 miles, the Gotthard Base Tunnel is the longest railway tunnel in the world. The railway tunnel is also the deepest in the world with depths reaching 8,000 feet. Construction of the tunnel began in October 1996 and was completed in March 2010 at the cost of more than $15 billion. It started operations in December 2016. Switzerland is a mountainous country with the Alps being a large barrier in the transportation of passengers and freight. Before the tunnel’s construction, the majority of the transportation was carried out through trucking which was slow, prone to accidents and economically unviable. So in 1994, the Swiss government put in place a law requiring a majority of the freight tonnage be transferred from truck transport to railway transport which signaled the beginning of planning for the Gotthard Base Tunnel. Over 200 freight trains and 50 passenger trains use the Gotthard Base Tunnel.
The Channel Tunnel is a 31-mile railway tunnel located in the English Channel. The Channel Tunnel is the second-longest underwater railway tunnel in the world, after the Japanese Seikan Tunnel. The tunnel reaches depths of 790 feet below sea level. The Channel Tunnel connects Folkestone in the United Kingdom to Coquelles in France was constructed from 1988 to 1994 by both the UK and the French governments at the cost of over $21 billion which was a record at the time. The Channel Tunnel was chosen by the American Society of Civil Engineers as one of the seven wonders of the modern world in 1995. About 400 trains use the Channel Tunnel every day hauling over 50,000 passengers and 54,000 tons of freight.
What is the World's Longest Railway Tunnel?
The Gotthard Base Tunnel, a railway base tunnel through the Alps in Switzerland, is the longest of its kind in the world.
Which Are The Longest Railway Tunnels In The World?
|Rank||Name||Location||Length in km||Year completed|
|1||Gotthard Base Tunnel||Switzerland (Alps)||57.104 km||2016|
|2||Seikan Tunnel||Japan (Tsugaru Strait)||53.85 km||1988|
|3||Yulhyeon Tunnel||South Korea (Gyeonggi)||52.3 km||2016|
|4||Channel Tunnel||France/United Kingdom (English Channel)||50.45 km||1994|
|5||Songshan Lake Tunnel||China (Dongguan)||38.813 km||2016|
|6||Lötschberg Base Tunnel||Switzerland (Bernese Alps)||34.576 km||2007|
|7||New Guanjiao Tunnel||China (Qinghai)||32.645 km||2014|
|8||Guadarrama Tunnel||Spain (Sierra de Guadarrama)||28.418 km||2007|
|9||West Qinling Tunnel||China(Gansu)||28.236 km||2016|
|10||Taihang Tunnel||China (Shanxi)||27.848 km||2007|
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