Two
railway tunnels and a service tunnel, interconnected, underneath the
English Channel connecting
England and
France. It is 31 miles (ca. 47 km) long out of which 23 miles (ca. 35 km) are underwater. The average depth is 150 ft (ca. 45 metres) underneath the seabed. It opened for travel in 1994 and its rail service carries vehicles as well as passengers. Also called
[The Chunnel]?.
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