10 longest railway tunnels in the world

10. West Qinling Tunnel

• length: 28.2 km
• location: Qinling, China
• completion of construction: 2008 – 2016
• construction cost: ???

9. Guadarrama Tunnel

• length: 28.4 km
• location: Sierra de Guadarrama, Spain
• completion of construction: 2002 – 2007
• construction cost: ???

8. New Guanjiao Tunnel

fot. mayanming / wikipedia.org (CC BY-SA 3.0)

• length: 32.6 km
• location: Guanjiao Mountain, China
• years of construction: 2007 – 2014
• construction cost: ???

7. Lötschberg Base Tunnel

fot. Cooper.ch 20:31, 15 August 2006 (UTC) / wikipedia.org (CC BY-SA 2.5)

• length: 34.5 km
• location: Switzerland (Alps)
• years of construction: 1999 – 2007
• construction cost: ???

6. Shenzhen Hong Kong Tunnel

• length: 35.6 km
• location: Shenzhen, China / Hong Kong
• completion of construction: 2018
• construction cost: ???

5. Songshan Lake Tunnel

• length: 38.8 km
• location: Dongguan, China
• completion of construction: 2016
• construction cost: ???

4. Yulhyeon Tunnel

• length: 50.3 km
• location: Gyeonggi-do, South Korea
• years of construction: 2012 – 2016
• construction cost: ???

3. Channel Tunnel

fot. Billy69150 / wikipedia.org (CC BY-SA 4.0)

• length: 50.4 km
• location: Great Britain / France
• years of construction: 1987 – 1994
• construction cost: 4,650,000,000 pounds

2. Seikan Tunnel

fot. Bmazerolles / wikipedia.org (CC BY-SA 4.0)

• length: 53.8 km
• location: Japan (near the Tsugaru Strait)
• years of construction: 1971 – 1988
• construction cost: EUR 11,000,000,000

1. Gotthard Base Tunnel

fot. Hannes Ortlieb / wikipedia.org (CC BY-SA 3.0)

• length: 57.1 km
• location: Switzerland (Alps)
• years of construction: 1996 – 2016
• construction cost: $ 7,000,000,000