a passenger train hauled by Class 85 locomotive 85 102 was derailed south of the station. Locomotive facilities Motive power depots For several years after 1849 engines were stabled in the open on a siding set aside for this purpose. The first shed was a wooden structure opened in by the London and Birmingham Railway which was blown down in 1852. A brick built replacement was provided in 1855 which was later enlarged in 1870 to receive extra locomotives from shed which closed in 1874. In 1881, a large 10-road replacement shed was constructed in the triangle of lines to the south of the station, with the 1855 shed subsequently used for carriage storage. This shed, which was often referred to as Bridge Street, was located near the Grand Union Canal and could accommodate 50 engines. Measuring with a turntable, the shed was initially coded as No. 5 and became No. 6 on the opening of Bescot. For administrative purposes, it was merged with Colwick shed upon the grouping and both remained under the control of the same shed foreman until Colwick's closure in 1932. Northampton was coded 2C in 1935 when it was merged with Rugby shed; it remained 2C until December 1963 when it was recoded 1H by British Railways. Initially 16 locomotives were allocated to Northampton shed in the 1860s, a figure which had risen to 36 by 1925 despite receiving the allocation of the ex-Midland shed at Hardingstone Lane in 1924. The stock level rose under British Railways when it comprised 8Fs, 4Fs and LNWR 0-8-0s for freight workings, 'Black Fives', 2-6-2Ts and 4-4-0s for passenger services, while a few 3Fs and a single Webb 2-4-2T were used for shunting. A re-arrangement of the offices and stores took place in 1927 under the London, Midland and Scottish Railway at a cost of nearly £1,000; the roof was also replaced by one with a 'louvre' pattern. A new turntable was installed in 1938 by the south-east corner of the building. Further modernisation took place in 1952 when ash and coaling plants were erected by British Railways, together with a new structure. The shed was closed, along with Willesden shed, as from 27 September 1965, a consequence of the electrification of the West Coast Main Line. King's Heath depot To the north of the station is a five-road Siemens rolling stock maintenance depot which was officially opened on