Erewash Valley Line
Commenced building in 1844 and was merged into the Midland Railway at that time.
It opened as far as Pinxton in 1847, with a link to the Butterley Company's own railway at Codnor Park in 1849. The line was finally completed to Chesterfield in 1862.
It was immediately successful, not only serving the collieries but also the ironworks and brickworks around Ripley, particularly the Butterley Company.
By the end of the century, it was also carrying main-line expresses from London to Leeds and Settle and Carlisle Line services to Scotland, while the main line to Derby served the expresses to Manchester, and the main line to Nottingham used the Corby line from Kettering and ran through the now closed Old Dalby line diverting near Melton Mowbray.