Channel Tunnel over £3 million. Ten workers, eight of them British, were killed during construction between 1987 and 1993, most in the first few months of boring. A two-inch (50-mm) diameter pilot hole allowed the service tunnel to break through without ceremony on 30 October 1990. On 1 December 1990, Englishman Graham Fagg and Frenchman Phillippe Cozette broke through the service tunnel with the media watching. Eurotunnel completed the tunnel on time, and it was officially opened, one year later than originally planned, by Queen Elizabeth II and the French president, François Mitterrand, in a ceremony held in Calais on 6 May
1996 Channel Tunnel fire run trains on fire through the tunnel to one of stopping the train and evacuating the passengers as soon as possible. The Channel Tunnel is a long undersea railway tunnel linking Folkestone in the United Kingdom with Coquelles near Calais in northern France. A diameter service tunnel is positioned between two diameter running tunnels each with standard gauge rail track with an overhead line energised at 25 kV 50 Hz. There are connecting passages from the running tunnels to the service tunnel every and piston relief ducts connect the running tunnels managing the pressure changes due to the movement of