Historic Bridges of the U.S.

Assabet River Bridge (Middlesex County, Massachusetts)
Built 1886; rehabilitated 1902
Stone arch bridge over Assabet River on MA 62 (Main Street) in Concord
Open to traffic

Power Canal Bridge (Middlesex County, Massachusetts)
Built 1885; rehabilitated 1978
Stone arch bridge over Power Canal on MA 62 (Main Street) in Concord
Open to traffic

Sudbury River Bridge (Middlesex County, Massachusetts)
Built 1909
Concrete arch bridge over Sudbury River on MA 62/MA 2A in Concord
Open to traffic