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
Summit Tunnel Gooch, assisted by Barnard Dickinson. Progress on the tunnel’s construction was slower than anticipated, largely because the excavation process was more difficult than anticipated. On 1 March 1841, Summit Tunnel was officially opened by Sir John Frederick Sigismund Smith; it had cost of £251,000 and 41 workers had lost their lives. On 20 December 1984, the Summit Tunnel fire occurred. No lives were lost and five months later, the tunnel reopened after limited repair work. The tunnel has remained in continuous use for passenger and freight services with little interruption since it opened. Summit Tunnel, between Littleborough and Todmorden is