Let’s take a look at the longest tunnels around the world.
Gotthard Base Tunnel
Length: 35.5 miles (57.5 km)
Deepest point: 1.42 miles (2.3 km)
From: Erstfeld, Switzerland
To: Bodio, Switzerland
Tunnel Type: Railway tunnel
Work begun: 1996
Date opened: June 1, 2016
Estimated cost: $12 billion
Seikan tunnel
Length: 33.5 miles (53.9 km)
Deepest point: 790 ft (240 m)
From: Aomori Prefecture, Japan
To: Hokkaido, Japan
Tunnel Type: Railway tunnel
Work begun: 1971
Date opened: March 13, 1988
Estimated cost: $3.6 billion
Eurotunnel
Length: 31.4 miles (50.5 km)
Deepest point: 250 ft (75 m)
From: Folkestone, Kent, UK
To: Coquelles, Pas-de-Calais, France
Tunnel Type: Railway tunnel
Work begun: 1988
Date opened: Nov. 14, 1994
Estimated cost: $6.72 billion
Lötschberg Base Tunnel
Length: 21 miles (34.6 km)
Deepest point: Not available
From: Frutigen, Berne, Switzerland
To: Raron, Valais, Switzerland
Tunnel Type: Railway tunnel
Work begun: 1999
Date opened: June 15, 2007
Estimated cost: $3.5 billion
COURTESY MSN.COM