Wernwag truss

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

Seymour Covered Bridge 35-71-07x (Ross County, Ohio)
Built 1840, Replaced 1933-4
Lost Wernwag Truss Bridge over Paint Creek on US 50
Replaced by a new bridge after abutment failure in 1933.

US50 Cheat River Covered Bridge 48-39-01x (Preston County, West Virginia)
Built in 1835 by Josiah Kidwell, bypassed by a new bridge in 1932, destroyed by fire in 1964.
Lost Bridge over Cheat River on U.S. Route 50
Destroyed by fire in 1964