Gotthard Base Tunnel -The longest railway tunnel in the world.
Gotthard Base Tunnel -The longest railway tunnel in the world.
2 PagesGotthard Base Tunnel nkt cables References | Gotthard Base Tunnel · With 57 km it is the longest railway tunnel in the world Commencement of construction in 1999 and commissioning in December 2016 · Costs amounting to around 12 billion CHF · The principal for nkt cables is the joint venture Transtec Gotthard · The building contractor is AlpTransit AG · 228 km of railway material and 190,000 concrete sleepers are being laid · 2,800 km of
