An idea since Napoleon's time, this $15 billion link runs underwater for 23 of its 31 miles
... tunnel 
runs 31 miles in total--23 of those underwater--and takes 20 minutes,... [DOC] [TLE] MocoSpace | Dec 1, 1990; Chunnel makes breakthrough/Ford's ... [PAR] Shortly after 11 a.m. on December 1, 1990, 132 feet below the English Channel, 
... tunnel linking Great Britain with the European mainland for the first time in ...