AC Installation in Fort Hamilton, NY

On July 4, 1776, a small American battery (the Narrows Fort) on the site of today’s Fort Hamilton (the east side of the Narrows) fired into one of the British men-of-war convoying troops to suppress the American Revolution. HMS Asia suffered damage and casualties, but opposition to the immense fleet could be little more than symbolic. However, this very significant event marked one of the earliest uses of the site for military purposes.

The War of 1812 underscored the importance of coastal defense (since the British burned parts of Washington, DC) and helped to promote a new round of fort building. The new forts, including Fort Hamilton, were eventually termed the third system of US seacoast forts. The cornerstone for Fort Hamilton was set in place by its designer, Simon Bernard, on June 11, 1825. Bernard was previously a French military engineer under Napoleon, who had joined the US Army after Napoleon’s defeat in 1815. Six years and a half million dollars later, the fort was ready to receive its garrison, initially Battery F of the 4th US Artillery.

Fort Hamilton (now the Casemate Fort, Whiting Quadrangle) was designed primarily as a landward defense for Fort Lafayette, although it had a sea-facing front as well. Fort Lafayette was offshore on Hendricks Reef, and was demolished in the 1960s to make room for the eastern tower of the Verrazzano-Narrows Bridge. Fort Hamilton was in the shape of a trapezoid, with the wide side facing the Narrows and the narrow side facing inland. It had two tiers of cannon all around: a casemated tier inside the fort and a barbette tier on the roof. Loopholes for muskets were provided on the three landward sides. A dry ditch also protected these three sides. A caponier, a rare feature in US forts, projected into the ditch to defend it against attack. Two smaller caponiers enclosed the ends of the ditch, projecting off the seacoast front. The fort’s sally port was in the middle of this front. A square redoubt with its own ditch was located behind the fort to provide an initial landward defense position.