The Suez Canal, the Panama canal, and now the new tunnel through the Gotthard massif in the swiss alps are the longest man made passages.
With a lenght of 57 kilometers (35 miles), the Alptransit Train Tunnel is to be opened for traffic in 2017. The workers will remove the last 2 meters of rock friday 15th of october. A live stream will show the last digging here: SFTV
Here's the Trailer to the show:
Seems like the world is seeing a lot of digging lately, as the 33 miners were rescued yesterday in Chile. What an impressive work of engineering.
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