The locomotive works at Crewe was commenced by the Grand Junction Railway in 1840 with, three years later, the first of what eventually would total 7,331 steam locomotives being built (followed by diesel and electric types). The works was expanded by the London & North Western Railway (L&NWR) in 1860, and piecemeal in later years so that by 1920 it was a collection of foundries, shops and sheds, later rationalised to some extent and greatly expanded upon by the London, Midland & Scottish Railway, for example a new erecting shop in 1926. At its height, Crewe Works employed between 7,000 and 8,000 workers.
After the LMS attempt at tidying up, BR added improvements such as, in 1959, a new scrapping shed converted from the former Steel Works, and a new…