(GENEVA) -- Workers are expected to complete digging through the Swiss Alps on Friday, paving the way for the creation of the world's longest railway. The final breakthrough comes nearly two decades after construction on the Gotthard Base Tunnel began.
The tunnel will measure 35 miles long, connecting northern and southern Europe, and will relieve congested Alpine roads, reports The Guardian. It is expected to significantly cut travel time, taking 300 trains under the Alps daily at speeds surpassing 150 mph.
The tunnel is projected to open in 2017.
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