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How much did the Gotthard Base Tunnel cost?
At 57 km, the longest railway tunnel in the world
💡 57 km through the Alps, 17 years of construction. Long tunnels cost hundreds of millions per kilometre.
Answer
€11.2B
€11,200,000,000 · Construction cost · 2016
17 years of construction. Around 28 million tonnes of rock were excavated – five times the Great Pyramid of Giza.
CHF 12.2B, converted at the 2016 rate.
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