Aiken Street Bridge (Middlesex County, Massachusetts)
Built 1883 by the Corrugated Metal Co. (Berlin Iron Bridge Co.)Five-span through truss bridge over Merrimack River on Aiken Street in LowellOpen to traffic
Bridge Street Bridge (Middlesex County, Massachusetts)
Built 1937Through truss bridge over Merrimack River on Bridge Street in LowellOpen to traffic
Bypassed Historic Bridge (Merrimack County, New Hampshire)
Built 1907Through truss bridge over Merrimack River on Bypassed Historic in BoscawenClosed to all traffic
Bypassed Historic Bridge (Merrimack County, New Hampshire)
Built 1909Through truss bridge over Merrimack River on Bypassed Historic in HooksettClosed to all traffic
Merrimack River Bridge (Hillsborough County, New Hampshire)
Built 1923; rehabilitated 1995Deck truss bridge over Merrimack River on US 3/NH 3A in ManchesterOpen to traffic
Merrimack River Bridge (Essex County, Massachusetts)
Built 1976Bascule bridge over Merrimack River on US 1 (Bridge Road) in NewburyportOpen to traffic
Merrimack River Bridge (Essex County, Massachusetts)
Built 1850; rehabilitated 1966Swing bridge over Merrimack River on Main Street in AmesburyOpen to traffic
Merrimack River Bridge (Essex County, Massachusetts)
Truss bridge over Merrimack River on Union Street in LawrenceOpen to traffic
Merrimack River Bridge (Middlesex County, Massachusetts)
Built 1930; rehabilitated 1975Steel through arch bridge over Merrimack River on MA 113/MA 3A in TyngsboroughOpen to traffic
Merrimack River Bridge (Essex County, Massachusetts)
Built 1914; rehabilitated 1951Bascule bridge over Merrimack River on MA 97/MA 113 in GrovelandOpen to traffic
Merrimack River Bridge (Essex County, Massachusetts)
Built 1954Through truss bridge over Merrimack River on I-95 in AmesburyOpen to traffic
Merrimack River Bridge (Essex County, Massachusetts)
Built 1909Suspension bridge over Merrimack River on Main Street in AmesburyOpen to traffic
Sewalls Falls Road Bridge (Merrimack County, New Hampshire)
Built 1915Truss bridge over Merrimack River on Sewalls Falls Road in ConcordOpen to traffic
University Avenue Bridge (Middlesex County, Massachusetts)
Deck truss bridge over Merrimack River on Univrsty Avenue in LowellOpen to traffic