Bletchley TMD

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Bletchley TMD
Location Bletchley, United Kingdom
Coordinates 52°00′03″N 0°43′53″W / 52.0008°N 0.7313°W / 52.0008; -0.7313Coordinates: 52°00′03″N 0°43′53″W / 52.0008°N 0.7313°W / 52.0008; -0.7313
OS grid SP870344
Owner(s) London Midland
Depot code(s)
  • 2B (1948-1950)
  • 4A (1950-1952)
  • 1E (1952-1973)
  • BY (1973-present)[1]
Type Diesel, DMU, EMU
Opened 1850
Closed June 2008

Bletchley TMD was a railway traction maintenance depot situated in Bletchley, Milton Keynes in Buckinghamshire, to the north of Bletchley Station on the West Coast Main Line. The depot was operated by London Midland. The depot code was BY but, in steam days, the shed code was 1E.

Bletchley TMD began in the modern era in 1965 (though had existed since 1850, in the age of steam).[2] It closed on 30 June 2008 and its (expired) lease returned to Network Rail.[2] Bletchley had won awards for the reliability of its trains as recently as March 2007, and was said to deliver six times better than average reliability.[3] London Midland phased in the fleet of 37 Class 350//2 Desiro trains, which are maintained by Siemens at Northampton. These replaced the Silverlink Class 321 fleet which had been serviced at Bletchley.[2] Most of the engineers transferred to the Siemens site and the cleaners to London Midland.[2]

The TMD has also been used for a brief period as a place to store brand new Class 387/1 Thameslink trains (2015)


The local press expressed concern that diesel trains used on the Marston Vale Line, which were previously serviced here, now have to come from Tyseley TMD in Birmingham, with consequent long delays to service resumption in the event of train failure.[4][5]

Allocation prior to closure[edit]


  1. ^ "The all-time guide to UK Shed and Depot Codes" (PDF). 5 May 2006. Archived from the original (PDF) on 17 December 2013. Retrieved 25 August 2016. 
  2. ^ a b c d End of the line for award-winning depot Railnews, 1 July 2008
  3. ^ Top Fleet Honoured At Bletchley Depot 13 Feb 2007
  4. ^ More commuter misery down the line: Delays forecast on Marston Vale line following closure of Bletchley train depot Bedford Today
  5. ^ Milton Keynes on track for rail delays as staff shunted to Birmingham Milton Keynes Citizen 4 June 2008