Fort Dupont, District of Columbia — History & Visitor Guide

Fort Dupont (Washington, D.C., District of Columbia)

Washington, D.C. · District of Columbia · Civil War

Quick BriefFort Dupont was erected as part of the Eastern Branch Line Defenses along the Anacostia River, with construction commencing between October and December of 1861 and completed in spring 1862. A hexagonal redoubt designed for 14 guns, the fort had six 100-foot sides protected by a deep moat and felled trees. Though never engaged in battle, it served as a refuge for enslaved people seeking freedom before joining contraband communities in Washington.

Civil WarOpen to visitors

History & Significance

Fort Dupont anchored the Eastern Branch Line Defenses east of the Anacostia River, protecting a critical Ridge Road (Alabama Avenue) intersection and supported by Forts Meigs and Chaplin to the north and Fort Davis to the south. Named for Flag Officer Samuel F. Dupont, who commanded the Union naval victory at Port Royal, South Carolina, in November 1861, the fortification exemplified the rapid earthwork construction overseen by Major General John G. Barnard to defend the capital.

Designed as a regular hexagonal redoubt for 14 guns with 12 firing through embrasures, it proved strategically modest; a commission studying the Defenses noted in 1862 that a deep ravine west of the fort warranted a blockhouse. Despite its garrison and guns never seeing battle, Fort Dupont served as a lifeline of freedom—runaway enslaved people found safety here before joining the growing contraband community in Washington.

The fort remained in use until 1865 when it was abandoned. The National Capital Planning Commission acquired the property in the 1930s for recreation; a golf course gave way in 1970 to a sports complex including tennis, basketball courts, athletic fields, and an ice rink. The fort's earthworks remain traceable near the picnic area on Alabama Avenue.

Key Facts

StateDistrict of Columbia

LocationWashington, D.C.

Established1861

Decommissioned1865

War / eraCivil War

Current statusState or National Park

Coordinates38.8773345, -76.9502523

Map

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🧳 Visiting

What you’ll see when you visit:

Civil War-era hexagonal artillery fort remains in 376-acre wooded park
Walking trails through historic defensive position overlooking Washington
Educational programs and exhibits on Civil War engineering and strategy
Large recreational area with picnic facilities and natural watershed setting

Best time to visitSpring (April-May) and fall (September-October) offer pleasant weather for outdoor walks; summer can be humid and hot, winter mild but often wet.

Getting thereRonald Reagan Washington National Airport (DCA) is 8 km away; the fort is located in Washington, D.C.

From the nearest major airportRonald Reagan Washington National Airport (DCA)🚗 8 mi by road⏱️ ≈ 17 min drive

Fort Dupont (Washington, D.C., District of Columbia)

History & Significance

Key Facts

Map

🧳 Visiting

Sources

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