Motive power depot
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Motive power depot, usually abbreviated to mpd, is the name given in Britain to places where locomotives are stored when not being used. They were originally known as "running sheds" or, for short, just sheds as, for instance, "Rowsley Shed".
Often they are in the form of a roundhouse. Facilities are provided for refuelling and replenishing water, lubricating oil and grease and, for steam engines, disposal of the ash.
There might be workshops for small repairs and minor maintenance, but locomotive building and overhauls are carried out in the major locomotive works.
Nearby there are usually also sidings for goods wagons and passenger carriages.
All Steam locomotives of British Railways carried the code of their home depot on a small plate affixed to the smokebox door. Here are some examples:
- 1A Willesden (London Midland Region)
- 30A Stratford (Eastern Region)
- 50A York (North Eastern Region)
- 60A Inverness (Scottish Region)
- 70A Nine Elms (Southern Region)
- 81A Old Oak Common (Western Region)