Built 1821

Amsterdam Bridge (1821) (Montgomery County, New York)
Built 1821; Replaced 1839
Lost Bridge over Mohawk River on Road
Replaced by a new bridge

Auburn Tunnel (Schuylkill County, Pennsylvania)
Built 1821; daylighted 1857
Abandoned tunnel on Schuylkill Canal
Derelict/abandoned/open cut

Bridge Point Bridge (Bucks County, Pennsylvania)
Built 1821
Lost Stone arch bridge over Neshaminy Creek on road and trolley
Removed but not replaced

Brooks Bridge (Middlesex County, Massachusetts)
Built 1821
Lost Stone arch bridge over Middlesex Canal on Brooks Road in Medford.
Removed but not replaced