_st-gothard-tunnel.jpg "St Gothard tunnel from tbm milan Video Screenshot Preview")
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⏲ Duration: 8 min 29 sec
✓ Published: 16-Apr-2013
✓ Published: 16-Apr-2013
Description:
Saint Gotthard Base Tunnel, on the new railway connection under the Alps, is a total of 57 kilometres long, making it the longest railway tunnel under construction in the world.nAltogether, the system's tunnels add up to 153.5 kilometres in length, including service sections and connections between the tunnel's two tubes. The tunnel runs through the centre of Switzerland at an average of 550 metres above sea level, and it is scheduled to be opened to traffic in 2017.nnFor the structure's constru
Saint Gotthard Base Tunnel, on the new railway connection under the Alps, is a total of 57 kilometres long, making it the longest railway tunnel under construction in the world.nAltogether, the system's tunnels add up to 153.5 kilometres in length, including service sections and connections between the tunnel's two tubes. The tunnel runs through the centre of Switzerland at an average of 550 metres above sea level, and it is scheduled to be opened to traffic in 2017.nnFor the structure's constru
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