| Fort Woodbury | |
|---|---|
| Part of the Civil War defenses of Washington, D.C. | |
| Arlington County, Virginia | |
  Fort Woodbury | |
| Coordinates | 38°53′24.6″N 77°05′01.6″W / 38.890167°N 77.083778°W |
| Type | Earthwork fort |
| Site information | |
| Controlled by | Union Army |
| Condition | Residential Area |
| Site history | |
| Built | 1861 |
| Built by | U.S. Army Corps of Engineers |
| In use | 1861–1865 |
| Materials | Earth, timber |
| Demolished | 1865 |
| Battles/wars | American Civil War |
Fort Woodbury was part of the Arlington Line, an extensive network of fortifications erected in present-day Arlington County, Virginia to protect Washington, D.C. from Confederate attack during the American Civil War. Construction began on the Arlington Line in May 1861, shortly after war broke out, and accelerated after the Union's defeat at the First Battle of Bull Run in July 1861.