In the battery area of the fort there were, at the peak of operation, seven above ground structures.  These included the BOP (Battery Observation Post), which served as the nerve centre of the fort 'M the early years of the war; the CDX tower, built during the winter of 1944-45, housed the radar equipment and operations later in the war; the Artillery Emplacements, two CASL (Coastal Artillery Search Light) emplacements; an above ground powerhouse, and the preexisting gun emplacements from The Great War.  Unfortunately, of these structures, only the BOP, CASL emplacements, Artillery emplacements, and the WWI emplacements remain.

Buried beneath the emplacements, a two story structure houses a pair of ammunition magazines, an Artificer's workshop, three elevators for ammunition, two main stairwells, two escape tunnels (in case of fire), and two, as yet, unidentified rooms.  Although inaccessible to the public at present, it is hoped that this area may be opened at some point in the future.

Also housed underground, not far from the Artillery emplacements, is the DEL or Diesel Electric light plant.  Containing two Westinghouse electric generators paired with Gardiner Pat Croft diesels, this two-room plant supplied power to the fort in cases of civilian power loss.  Powered by independent diesel electric generators, the two CASLs each housed a 60" CGE Carbon Are searchlight having a range of nine miles with a concentrated beam and five using a dispersed beam.  These lights were capable of generating 800million-candle power of light making it possible to spot a periscope at extreme ranges.