The original 1809 fort was blown up by its own garrison in 1814 to prevent it from falling into British hands during the Chesapeake Campaign.
The site contains the only remaining circular fort in the U.S. National Park system.
The fort's massive Endicott-era concrete batteries were designed to hold heavy artillery pieces like the 10-inch disappearing gun.
During the Civil War, the fort served as the primary defensive installation for the capital city.
The park provides one of the few vantage points to view the Potomac River from the Maryland side without urban obstruction.
The fortification layout includes a 'wet ditch' design, though much of it is now kept dry for visitor access.
The site served as a military training ground for various units throughout the 20th century before becoming a public park.
Fort Washington Park preserves a coastal defense fort originally constructed in 1809 to protect the Potomac River approach to Washington, D.C. The current masonry fortification dates to a massive redesign completed in 1824 following the destruction of the original fort during the War of 1812. The park features an intricate system of casemates, bastions, and a dry moat accessible to the public. Visitors can explore the remnants of massive concrete batteries added to the site in the 1890s as part of the Endicott Period harbor defenses. The grounds include wooded hiking trails and designated fishing areas along the riverbank. It is managed by the National Park Service as a historic site. The location offers unobstructed views across the Potomac River toward Mount Vernon.
The top level of the fort looking out over the water toward the Mount Vernon estate.
Bring a flashlight to navigate the dim, cavernous corridors inside the masonry fort walls.
Wear sturdy, closed-toe walking shoes as the historic masonry floors can be uneven and occasionally damp.
Check the park's official weather alerts before visiting, as high tide or heavy rain can occasionally affect trail accessibility.
Do not wander off-trail into densely wooded areas, as ticks and poison ivy are prevalent during the summer months.
The visitor center and specific interior fort areas may have seasonal accessibility changes; check for local event-related closures.
Do not climb on the historic masonry walls or battery embankments; stay on marked paths to preserve the structures.
