Beaver Brook East Stream Bridge (Middlesex County, Massachusetts)
Built 1850; rehabilitated 1921Stone arch bridge over Beaver Brook East Stream on MA 113 (Pleasant Street) in DracutOpen to traffic
Beaver Brook West Stream Bridge (Middlesex County, Massachusetts)
Built 1850; rehabilitated 1921Stone arch bridge over Beaver Brook West Stream on MA 113 (Pleasant Street) in DracutOpen to traffic
Bridge Street Bridge (Middlesex County, Massachusetts)
Built 1937Through truss bridge over Merrimack River on Bridge Street in LowellOpen to traffic
Concord River Bridge (Middlesex County, Massachusetts)
Built 1858; rehabilitated 1961Stone arch bridge over Concord River on MA 110 in LowellOpen to traffic
Morton Street Bridge (Middlesex County, Massachusetts)
Built 1929; rehabilitated 1982Wooden bridge over BMRR on Morton Street in LowellOpen to traffic
Walker Street Bridge (Middlesex County, Massachusetts)
Built 1910; rehabilitated 1994Pony truss bridge over BMRR on Walker Street in LowellOpen to traffic
Western Canal Bridge (Middlesex County, Massachusetts)
Built 1833; rehabilitated 1923Stone arch bridge over Western Canal on Broadway in LowellOpen to traffic