Claim: Butterley Gangroad was constructed in 1793 and upgraded in the 1840s to accommodate steam locomotives.
Evidence: The line was constructed in 1793, with the construction of Fritchley Tunnel, now believed to be the world's oldest railway tunnel, being required to go under a road junction at Fritchley. In the 1840s, upgrading took place to accommodate steam locomotives, and part of the original line was moved.