Lost 1861

B&O - Harper Ferry Bridge (Jefferson County, West Virginia)
Built in 1836, burned 2 months after the start of the Civil War
Lost Through truss bridge over Potomac River on Former B&O
Destroyed by disaster

ET&G - Hiwassee River Bridge (Bradley County, Tennessee)
Burned by Unionists November 8th, 1861
Lost Through truss bridge over Hiwassee River on Hiwassee River Railroad
Arsoned by Unionists November 8th, 1861

Frederick Turnpike Covered Bridge (Baltimore, Maryland)
Built before 1850, demolished 1861-62 after replacement iron bridge built
Lost Bridge over Gwynns Falls on Frederick Road/Turnpike (National Road)
Replaced by a new bridge

Poteau River Iron Bridge (Beale Bridge) 1860 (Sebastian County, Arkansas)
Built in 1860 as part of the Beale road project funded by the federal government.
Lost Iron through truss bridge (possibly Bowstring design) over Poteau River on Beale Road
No longer exists

Shepherdstown Covered Bridge (Washington County, Maryland)
Built 1850 to replace Blackford Ferry, burned by Confederate troops in 1861
Lost Through truss bridge over Potomac River on old road
Destroyed by fire in the Civil War in 1861