Summarised from report:

Between the emplacements and located underground are the magazines, shelters and associated stores, which were reached by steps from the covered way. The entrances are now blocked with rubble and concrete, but the original record plan, however, shows them in great detail. There are two complexes: the first, between emplacements I and II, comprises a magazine, shelter, lamp room and group store; the second, between emplacements II and III, comprises two magazines, shelter, lamp room, telephone room and artillery store. Each magazine comprised a shell store and cartridge store; the former has a doorway leading directly to the passage with the ammunition lift at the end, while access to the cartridge store was restricted through a controlled shifting lobby. Cartridges were passed out of the store through an issue hatch into the passage, and illumination was achieved through lamp recesses in the passage wall with permanent glazing on the internal wall preventing sparks from entering the stores. At the foot of the steps leading down to the magazine complexes were ablution benches, with extra latrines being provided along the covered way to the Western Outworks.(1)

<1> RCHME, 2000, The Western Heights, Dover, Kent. Report No 8: The Citadel Battery: An early 20th-century coastal battery (Unpublished document). SKE17504.