1 Box Tunnel going electric after 174 years. Box Tunnel is one of the many achievements of Isambard Kingdom Brunel, one of Britain’s finest engineers. Completed in 1841, it provides a route through solid Bath stone from Box to Corsham, and was the longest tunnel in the world at the time. RVT provides fresh air for tunnel workers September 2015 Facts and figures about Box Tunnel works 1836 –1841 Tunnel construction • Between 1500 an

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