Fort Bingemma (Berngemma) was authorised in March 1874 and the work commenced in July of the same year. The Fort is shown as completed in September 1874 for a total cost of £7872, so £6 under the estimated cost.
The barracks had accommodation for thirty three men, two sergeants and two officers.The main water tank held 142800 galleons and a smaller tank under the parade ground held 2,500 galleons of rainwater.
At this time the fort is shown to armed as follows: