Merrimack River

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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 Lowell
Open to traffic

Bridge Street Bridge (Middlesex County, Massachusetts)
Built 1937
Through truss bridge over Merrimack River on Bridge Street in Lowell
Open to traffic

Depot Street Bridge (Merrimack County, New Hampshire)
Built 1907, closed in 1965
Through truss bridge over Merrimack River on Old Canterbury Road in Boscawen
Closed to all traffic

Duck Bridge (Essex County, Massachusetts)
Built 1888 by the Boston Bridge Works
Five-span through truss bridge over Merrimack River on Union Street in Lawrence
Open to traffic

Essex-Merrimac Bridge (Essex County, Massachusetts)
Built 1909; rehabilitated 2003
Suspension bridge over Merrimack River on Main Street in Amesbury
Open to traffic

Lilac Bridge (Merrimack County, New Hampshire)
Built 1909; Repaired 1936; Bypassed in 1976
Bypassed through truss bridge over Merrimack River in Hooksett
Closed to all traffic

Merrimack River Bridge (Essex County, Massachusetts)
Built 1850; rehabilitated 1966
Swing bridge over Merrimack River on Main Street in Amesbury
Open to traffic

Merrimack River Bridge (Essex County, Massachusetts)
Built 1954
Through arch bridge over Merrimack River on I-95 in Amesbury
Open to traffic

Merrimack River Bridge (Essex County, Massachusetts)
Built 1914; rehabilitated 1951
Bascule bridge over Merrimack River on MA 97/MA 113 in Groveland
Open to traffic

Merrimack River Bridge (Essex County, Massachusetts)
Built 1976
Bascule bridge over Merrimack River on US 1 (Bridge Road) in Newburyport
Open to traffic

Merrimack River Bridge (Middlesex County, Massachusetts)
Built 1930; rehabilitated 1975
Steel through arch bridge over Merrimack River on MA 113/MA 3A in Tyngsborough
Closed to all traffic

Merrimack River Bridge (Hillsborough County, New Hampshire)
Built 1923; rehabilitated 1995
Deck truss bridge over Merrimack River on US 3/NH 3A in Manchester
Open to traffic

Sewalls Falls Road Bridge (Merrimack County, New Hampshire)
Built 1915; rehabilitated 1936
Through truss bridge over Merrimack River on Sewalls Falls Road
Open to traffic

University Avenue Bridge (Middlesex County, Massachusetts)
Deck truss bridge over Merrimack River on Univrsty Avenue in Lowell
Open to traffic