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A workforce of 150 was involved in two tunnelling teams which started from opposite ends and met in the middle nearly 800m under the roof of the mountain. When the two teams met in the middle on 6 December 1950, they were only inches out. The tunnel was created using
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The tunnel was designed to carry 90 million imperial gallons (410,000 m) of water per day, be 2.5 miles (4.0 km) long, 7 feet (2.1 m) high and 8 feet (2.4 m) wide. The tunnel was officially opened in August 1952.
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One end of the
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This article about a
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techniques. The shelters for the workers can be found on
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Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.
