The Army constructed three concrete runways to serve their needs.
The Army constructed it when they built the artillery batteries here before the Spanish-American War.
With this sense of security, the British Army constructed a road from Jandola to Ladha.
This quickly changed as land restrictions forced the Army to construct space-saving underground magazines.
In response to intercommunal violence, the British Army constructed a number of high walls called "peace lines" to separate rival neighbourhoods.
In April 1942, the Army re-occupied the fort and constructed an adjacent airfield.
During American Civil War, the Army constructed earthwork batteries in the area.
The Army also constructed an incinerator with a tall brick chimney on the island.
The Army employed civilian machinists, carpenters, blacksmiths, masons, general laborers, the resident prisoner population, and slaves to help construct the fort.