3 ms·

Three, according to wikipedia: http://en.wikipedia.org/wiki/Channel_Tunnel#Tunnelling http://en.wikipedia.org/wiki/Channel_Tunnel#Tunnelling "Six machines wer

by jeroen 12y ago

Three, according to wikipedia: http://en.wikipedia.org/wiki/Channel_Tunnel#Tunnelling http://en.wikipedia.org/wiki/Channel_Tunnel#Tunnelling "Six machines were used, all commenced digging from Shakespeare Cliff, three marine-bound and three for the land tunnels."