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Fort Albany was a bastioned earthwork built by the Union Army in Arlington County (then still known as Alexandria County) in Virginia.
It was built in 1861 as part of the defense of Washington during the American Civil War.
The fort had a perimeter of 429 yards and emplacements for 12 guns. It was superseded by Fort Richardson and Fort Craig which both are 1300 yards to the west and the other 1300 yards to the north.
No trace of the fort remains, although an historic marker shows the location where the fort once stood, guarding the approach to the Long Bridge along the Columbia Turnpike, near the modern-day Pentagon. The ground on which the Fort stood was cut away during the construction of the Henry G. Shirley Memorial Highway, in 1942. Fort Albany has been recognized as a Historic District by Arlington County.