Fort Greble (Congress Heights, District of Columbia)

Congress Heights · District of Columbia · Civil War

Quick BriefNamed for First Lieutenant John Trout Greble, the first West Point graduate killed in the U.S. Civil War, Fort Greble protected the junction of the Anacostia and Potomac rivers from a position on a bluff in Congress Heights. Construction began in September 1861, but was not formally complete until 1864. The fort never fired a shot during the war, and after a brief stint as a U.S. Army Signal Corps training facility, was abandoned and the land returned to its natural state.
Civil WarCoastal defenseOpen to visitors

History & Significance

Brigadier General John G. Barnard, chief engineer of the Department of Washington, directed that several forts be constructed on the Congress Heights in order to protect the Navy Yard and Washington Arsenal from bombardment. Fort Greble was constructed as an octagonal redoubt with a perimeter of 350 years and mounted 17 cannons and mortars.

It was supported by Fort Carroll to the northeast and Fort Foote to the south. From the time of its construction, Fort Greble was never intended to serve as part of a continuous line of defenses stretching from the Potomac to Fort Lincoln at the extreme eastern end of the District of Columbia.

Rather, the fort and its sister emplacements on the east bank of the Potomac were intended to deny the Confederacy the possibility of infiltrating guns across the Potomac in order to bombard the Washington Navy Yard. No Confederate forces would bring Fort Greble under fire during its entire four-year active military career, and its garrison units, rotated regularly, served quietly behind its earthen walls.

In 1866, the Army allowed the Chief Signal Officer of the Army, General Albert J. Myer, to use Fort Greble for training purposes, and in 1868, Myer requested and received control over Fort Greble as a signal communications school for instruction in electric telegraphy and visual signaling. As of July 2007, the site of the fort is a community park.

Key Facts

StateDistrict of Columbia
LocationCongress Heights
Established1861
Decommissioned1869
War / eraCivil War
Current statusState or National Park
Coordinates38.82722222, -77.01472222

Map

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🧳 Visiting

What you’ll see when you visit:

  • Civil War-era earthwork fortification at Anacostia-Potomac junction
  • Named after first West Point graduate killed in Civil War
  • Strategic defensive position protecting Navy Yard from Confederate attack
  • Baseball field and recreation facilities on restored fort grounds
  • Park accessible to neighborhood visitors
Best time to visitSpring (April-May) and fall (October-November) offer mild temperatures; summers in D.C. are hot and humid, winters cold.
Getting thereNearest airport is DCA (Ronald Reagan Washington National Airport), 3.4 km from the fort in Congress Heights, D.C.
From the nearest major airportRonald Reagan Washington National Airport (DCA)🚗 9 mi by road⏱️ ≈ 18 min drive

Sources

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