Wichert truss
Hancock Bridge (Washington County, Maryland)
Built 1937Deck truss bridge over Potomac River on US 522 in BartonsvilleOpen to traffic
Harry W. Nice Memorial Bridge (Charles County, Maryland)
(Main design: Warren through truss)Built 1939; rehabilitated 1984Through truss bridge over Potomac River on US 301 connecting King George County, Va., and Charles County, Md.Open to traffic
Homestead Grays Bridge (Allegheny County, Pennsylvania)
Built 1936; rehabilitated 1979 and 2006Wichert deck truss bridge over Monongahela River in PittsburghOpen to traffic