As the Disused Stations website reports, the second  track between Mill Hill East and The Hale had been lifted in 1941, but the line  remained open for freight traffic and remained steam-hauled until December  1961. After that date diesel traction was employed but this was to be short-lived.  There was little traffic on the line, and the goods service was withdrawn from  1 June 1964; track-lifting started in September 1964.

Mill Hill (The Hale) railway station was established as part of the Edgware, Highgate and London Railway (EH&LR) line, which was operated by the Great Northern Railway (GNR) starting from 22 August 1867. Initially known as The Hale Halt, the station opened on 11 June 1906 along the single track connecting Finchley Central and Edgware. The entire line spanned from Finsbury Park to Edgware, including branches to Alexandra Palace and High Barnet.

Mill Hill (The Hale) station was situated near the Midland Railway’s Mill Hill station (now Mill Hill Broadway), with the GNR’s tracks passing underneath those of the Midland Railway just south of Mill Hill station. A goods service was introduced on 18 July 1910.

This photo, from the Tony Harden collection, shows Mill Hill (The Hale) in 1908, a time when it had no station buildings. The access to the single platform came via the steps from Bunns Lane, which can be seen in this view.

Following the 1921 Railways Act, which led to the formation of the ’Big Four’ railway companies, the EH&LR line became part of the London and North Eastern Railway (LNER) in 1923. The station was renamed Mill Hill (The Hale) in 1928.

In 1935, as part of London Underground’s New Works Programme, plans were made to incorporate the line into the Northern line through the "Northern Heights" plan. The intention was to modernise the line, convert it to double track for electric trains, and merge it with the Northern line. The neighbouring stations were also scheduled to have a new combined entrance building and shared forecourt.

Work began in the late 1930s, and a second track was laid between Finchley Central junction and Mill Hill (The Hale). However, the outbreak of the Second World War interrupted the project, and the section between Finchley Central and Edgware was closed for passenger services on 11 September 1939.

After the war, financial constraints and the Town & Country Planning Act, which included the Bushey Heath area in the Metropolitan Green Belt, led to the cancellation of the Northern Heights plan in the early 1950s. As Mill Hill (The Hale) was the only station between Edgware and Mill Hill East, and both Edgware and Mill Hill were served by adjacent Underground stations, there was limited demand to complete the track modernisation and reopen the line for passengers. The previously laid second track was dismantled and removed without being used. Goods services continued at Mill Hill (The Hale) until its complete closure on 29 February 1964.

Despite the station’s closure, it was still possible to purchase Underground tickets to "Mill Hill The Hale" until 1969. This allowed passengers to retain their tickets upon alighting at Mill Hill East and continue their journey on the 240A bus between Mill Hill and Edgware.

Presently, the tracks have been removed, and the platforms and station buildings have been demolished. The site of Mill Hill (The Hale) station was covered by material excavated during the construction of slip roads for the nearby section of the M1 motorway. In 2007, construction work commenced on the site to build flats, while the bridge over the former tracks remains.

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Main source:	Wikipedia
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