Fort Albany was a bastioned earthwork built by the Union Army

Union Army

The Union Army was the land force that fought for the Union during the American Civil War. It was also known as the Federal Army, the U.S. Army, the Northern Army and the National Army...

 in Arlington County (then still known as Alexandria County) in Virginia

Virginia

The Commonwealth of Virginia , is a U.S. state on the Atlantic Coast of the Southern United States. Virginia is nicknamed the "Old Dominion" and sometimes the "Mother of Presidents" after the eight U.S. presidents born there...

. It was built in 1861 as part of the defense of Washington

Washington, D.C.

Washington, D.C., formally the District of Columbia and commonly referred to as Washington, "the District", or simply D.C., is the capital of the United States. On July 16, 1790, the United States Congress approved the creation of a permanent national capital as permitted by the U.S. Constitution....

 during the American Civil War

American Civil War

The American Civil War was a civil war fought in the United States of America. In response to the election of Abraham Lincoln as President of the United States, 11 southern slave states declared their secession from the United States and formed the Confederate States of America ; the other 25...

.
The fort
had a It was superseded by Fort Richardson

Fort Richardson (Arlington, Virginia)

Fort Richardson was a detached redoubt constructed by the Union Army in September 1861 as part of the defense of Washington during the American Civil War....

 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 Pentagon

The Pentagon is the headquarters of the United States Department of Defense, located in Arlington County, Virginia. As a symbol of the U.S. military, "the Pentagon" is often used metonymically to refer to the Department of Defense rather than the building itself.Designed by the American architect...

. The ground on which the Fort stood was cut away during the construction of the Henry G. Shirley Memorial Highway

Henry G. Shirley Memorial Highway

The Henry G. Shirley Memorial Highway consists of a portion of Interstates 95 and 395 in the U.S. state of Virginia. Shirley Highway was the first limited-access freeway in Virginia...

, in 1942.
Fort Albany has been recognized as a Historic District by Arlington County.