|A Kilsby tunnel ventilator seen |
from above in 2014
|A Kilsby tunnel ventilator |
seen from below in 1838.
Kilsby tunnel was built in the very early days of railways - 1838. It was a tremendous undertaking of 2,400yds in length which, due to flooding under construction, delayed the opening of the London & Birmingham Railway by eight months. It cost £100 per linear yard to build, required 157 tons of gunpowder and used 36 million bricks.