
Built but never completed as part of the Endicott system (see 15.6, 15.6.4) that superseded the Plan of 1870, Battery Hambright was designed for two three-inch rapid-fire guns that defended an electrically controlled minefield across the Savannah River. In this early Endicott design the gun mounts alternate between the magazines; in later designs, the gun mounts flank a pair of centrally placed magazines for greater spacing between guns to minimize the debilitating concussion of muzzle blast on adjacent artillery crews. The gun platforms were designed for “masking parapet” mounts that concealed the guns below the concrete parapet when not in use. The two recesses in the parapet mark where the gun muzzle and breech would rest when concealed.