The award itself has named the railway the 67th Engineering Heritage Award by the Institution of Mechanical Engineers according to BBC News.
One of the railway's volunteer workers, Julian Stow gave his appreciation.
I think it's really fantastic, it's a nice bit of recognition for the railway and puts us in illustrious company alongside the Harrier jump jet and SS Great Britain, so it's really good news.
The railway is still visited today by families, rail enthusiasts and fans of Thomas and The Railway Series.
Thanks to SI3DFilms for the alert.