A Tunnel Across the English Channel?
Among the great technical projects of the future, the construction of a tunnel under the English Channel figures as one of the most probable. In fact, it appears so easy that one may even ask why it has not been done. In answer to that question, this inside story will be of interest.
The actual Chunnel ended up taking 6 years to build, cost around $17 billion and opened in 1994.
TUBING THE ENGLISH CHANNEL
By DAVID WALES
DOVER, England, is within gunshot of Calais, France. The German 42-centimeters could drop a shell across the 22 miles of water that intervene. The floor of the Straits of Dover is white chalk, underlaid by a stratum of chalk and clay. Beneath, to a depth of 208 feet, lies a ledge of gray chalk, very solid, of the same general character as that quarried in France for use in making cement. This substance is easy to bore, is self-sustaining, and is practically water-tight.