Abbott Bridge[Map] Stone arch bridge over Beaver Brook on Old Bridge Street in Pelham Open to traffic with a weight limit Built 1837; rehabilitated 1920 & 1988
Allds Street Bridge[Map] Stone arch bridge over Salmon Brook on Allds Street in Nashua Open to traffic Built 1892
Amherst Bridge[Map · Street View] Stone culvert bridge over Beaver Brook on Bypassed Alignment of Boston Post Road Replaced by a new bridge
Amoskeag Bridge[Map] Lost Lattice through truss bridge over Merrimack River on Bridge Street Destroyed by flooding Built 1825
BM - Goffstown Covered Bridge[Map] Lost Through truss bridge over Piscataquog River on Boston & Maine Railroad Destroyed by fire Built 1901, Burned 1976
BM - Great Trestle[Map · Street View] Lost Deck plate girder bridge over Souhegan River and NH-31 on B&M Greenville Branch Removed but not replaced Built 1908; Removed 1984
BM - Hillsborough Covered Bridge[Map] Lost Town lattice truss bridge over Contoocook River on Boston & Maine RR Destroyed by arsonists in 1985 Built 1903; Pier washed out 1938; Abandoned 1979; Destroyed 1985.
BM - Merrimack River Bridge[Map] Lost Warren through truss with sub-panels bridge over Merrimack River on B&M WN&P Division Removed but not replaced Built 1910; Partially blown up for War Effort December 26th, 1942; Remaining spans scrapped October 1943-1944
BM - Sheldons Pond Bridge[Map] Lost Deck truss bridge over Sheldons Pond on Boston & Maine RR Removed but not replaced
BM - Souhegan River Covered Deck Truss[Map] Lost Deck truss bridge over Souhegan River on Boston & Maine railroad Destroyed by fire Built 1851; Burned 1907; Replaced 1908
Canal Street Bridge (Old)[Map] Lost Lenticular through truss bridge over Nashua River on Canal Street Replaced by a new bridge
Castle Hill Road Bridge[Map] Wooden bridge over Beaver Brook on Castle Hill Road in Pelham Destroyed by severe weather Built 1920; rehabilitated 1973; closed indefinitely after damage from flooding in 2006; collapsed under weight of a blizzard in 2017
Center Street Bridge[Map] Lost Lenticular pony truss bridge over South Branch Piscataquog River on Center Street Replaced by a new bridge
Clarkville Road Bridge[Map] Wooden bridge over South Branch Piscataquog River on Clarkville Road in Francestown Open to traffic Built 1930
Cohas Avenue Bridge[Map] Stone arch bridge over Cohas Brook on Cohas Avenue in Manchester Open to traffic Built 1900
Cohas Brook Bridge[Map] Lost Open-spandrel arch bridge over Cohas Brook on S Willow Street SR 28 Replaced by a new bridge
Country Road Bridge[Map] Lost Wooden bridge over H20 LOOM PND OUTLET on Country Road in New Ipswich Replaced by a new bridge Built 1920; rehabilitated 1960; replaced 2005
County Farm Bridge[Map] Stone arch bridge over Whiting Brook on Old County Farm Road Open to traffic Built 1885 by the Ward Brothers
Daniel Webster Highway Bridge[Map] Stone arch bridge over Salmon Brook on Daniel Webster Highway in Nashua Open to traffic Built 1901
Depot Street Bridge[Map] Concrete arch bridge over Relief on Depot Street in Antrim Open to traffic Built 1914
Drury Stone Arch[Map] Stone arch bridge over Contoocook River on Abandoned Road Open to pedestrians only
Elm Street Bridge[Map] Stone arch bridge over Souhegan River on Elm Street in Milford Open to traffic Built 1917; rehabilitated 1952
Fairmount Street Bridge[Map] Wooden bridge over BMRR on Fairmount Street in Nashua Replaced by a new bridge Built 1930
Franklin Pierce University Suspension Bridge[Map] Abandoned wire suspension bridge over Merrimack River Back Channel in Manchester Derelict/abandoned. Main span mostly intact but backspans completely missing. Deck mostly collapsed.
Frye Mill Road Bridge[Map] Wooden bridge over Burton Pond Outlet on Frye Mill Road in Wilton Open to traffic Built 1920; rehabilitated 1960
Granite Street Bridge[Map · Street View] Steel stringer bridge over Merrimack River on Granite Street Open to traffic Third Bridge at this crossing Built 1954. Recon 1980 and 2005-2008
Green Bridge[Map · Street View] Lost through truss bridge over Souhegan River on Bypassed Historic in Milford Demolished Built 1910 by Canton Bridge Co.; rehabilitated 1973; Demolished 2015
Henry Bridge[Map] Warren pony truss bridge over Piscataquog River on Henry Bridge Road Open to traffic Built 1937; rehabilitated 1996
Hermit Road Bridge[Map] Stone arch bridge over Canal Inlet on Hermit Road in Manchester Open to traffic Built 1900
Highbridge[Map · Street View] Stone arch bridge over Souhegan River on Turnpike Road/Route 124 Open to traffic Stone arch bridge built in 1820. New Steel bridge sits on top of original stone arch.
Howe Bridge[Map] Timber stringer bridge over South Branch Piscataquog River on Parker Road Open to traffic Built 1937; rehabilitated 2003
Hutchinson Bridge[Map] Lost Bridge over Beaver Brook on Hutchinson Bridge Road Removed but not replaced
Irving & Bernice Singer Bridge[Map] Modern Pratt pony truss bridge over Piscataquog River on Piscataquog Rail-Trail Open to pedestrians only Built 2015 to connect Piscataquog Rail-Trail with Merrimack River Hertiage Trail (Manchester Riverwalk)
Kelley's Falls Bridge[Map · Street View] Lost Warren deck truss bridge over Piscataquag River on Kelley Street Replaced by a new bridge Built 1914; Replaced 1949
Lyndeborough Road Bridge[Map] Wooden bridge over South Branch Piscataquog River on Lyndeborough Road in New Boston Open to traffic Built 1940; rehabilitated 2000
Main Street Bridge (Temporary)[Map] Concrete girder bridge over Beaver Brook on Main Street in Pelham Open to traffic Built 2006 to replace previous bridge of unknown design destroyed by flood of 2006
MBRX - Souhegan River Bridge[Map] Warren through truss with all verticals bridge over Souhegan River on Milford-Bennington Railroad Open to traffic
MBRX - Stony Brook Bridge[Map] Deck plate girder bridge over Stony Brook on Milford-Bennington Railroad Open to traffic
McGregor Bridge[Map] Lost Lenticular Truss Bridge over Merrimack River on Bridge Street Destroyed by flooding Built in 1881 by The Corrugated Metal Co. - Lost 20 March 1936 to the "Great Flood"
Milford Swing Bridge[Map · Street View] Wire suspension bridge over Souhegan River on Pedestrian walkway Open to pedestrians only Built 1889 by Berlin Iron Bridge Co; Rehabilitated 1975
Mill Street Bridge[Map] Stone arch bridge over Souhegan River on Mill Street in Greenville Open to traffic Built 1925
Moeckel Road Bridge[Map] Wooden bridge over Golden Brook on Moeckel Road in Pelham Closed to all traffic Built 1920; rehabilitated 1982
Moose Brook Bridge[Map] Slab bridge over Moose Brook on Robinson Road Open to traffic Built 1990
Nashua Millyard Footbridge[Map] Pratt through truss bridge over Nashua River on Factory Footpath Open to pedestrians only Built 1903
Naziare Biron Bridge[Map] Steel stringer bridge over Piscataquog River on Kelley Street/Pinard Street Open to traffic Built 1973 to replace previous Kelley Street Bridge; Rehabilitated 2012 with full bridge closure
Notre Dame Bridge (current)[Map] Steel stringer bridge over Merrimack River, Everett Turnpike, and Various Local Streets on Bridge Street Open to traffic Original span built 1988 to replace previous arch bridge. Twin span built 1990
Notre Dame Bridge (original)[Map] Steel Arch bridge over Merrimack River on Bridge Street in Manchester Replaced by a new bridge Built 1936; replaced 1988
Old Carr Bridge[Map] Stone arch bridge over Beard's Brook on Jones Road in Hillsborough Open to traffic Built in 1840 by Captain Jonathan Carr
Old Twin Bridge Road Bridge[Map] Wooden bridge over Baboosic Brook on Old Twin Bridge Road in Merrimack Closed to all traffic Built 1920
Old Twin Bridge Road Bridge[Map] Wooden bridge over Baboosic Brook on Old Twin Bridge Road in Merrimack Closed to all traffic Built 1920
Piscataquog River Bridge[Map] Stone arch bridge over Piscataquog River on NH 3A (South Main Street) in Manchester Open to traffic Built 1894; rehabilitated 2003
Queen City Bridge[Map] Deck truss bridge over Merrimack River on US 3/NH 3A in Manchester Open to traffic Built 1923; rehabilitated 1995
Runnels Bridge[Map] Concrete closed-spandrel arch bridge over Nashua River on New Hampshire Route 111 in Hollis Open to traffic Built 1950; rehabilitated 1982
ST - Triple Bridge[Map] Warren through truss bridge over Nashua River on Springfield Terminal Railway Western truss still in use, other 2 abandoned.
Stage Coach Road Bridge[Map] Wooden bridge over Burton Pond Outlet on Stage Coach Road in Wilton Open to traffic Built 1940; rehabilitated 1960
Stony Brook Bridge[Map] Stone arch bridge over Stony Brook on NH 31 in Wilton Open to traffic Built 1905
Taylor Falls Arch Bridge[Map] Lost Closed-spandrel arch bridge over Merrimack River on Ferry Street Replaced by a new bridge Built 1911; Replaced ca. 1973
Taylor Falls Covered Bridge[Map] Lost Burr arch-truss bridge over Merrimack River on Road Replaced by a new bridge Built 1827; Replaced 1881
Taylor Falls Iron Bridge[Map] Lost Lenticular through truss bridge over Merrimack River on Road Replaced by a new bridge Built 1882 by Corrugated Metal Co.; Replaced 1911
Temple Brook Bridge[Map · Street View] Stone arch bridge over Temple Brook on NH 45 in Temple Open to traffic Built 1951; rehabilitated 1971
Temple Road Bridge[Map] Stone arch bridge over Blood Brook on Temple Road in Wilton Open to traffic Built 1901
Thompson Crossing Bridge[Map] Pin connected Pratt through Truss over Contoocook River on abandonded section of Thompson Crossing road in Antrim Derelict/abandoned Built 1893 by Berlin Iron Bridge Co.; Abandoned 1976
US202 North Branch River Bridge[Map] Concrete rigid frame bridge over N Branch River on US 202 Open to traffic Built 1988; rehabilitated 2001
West Deering Road Bridge[Map · Street View] Lost pony truss bridge over Contoocook River on West Deering Road in Deering Replaced by a new bridge Built 1905; replaced 2010
Willow Street Bridge[Map] Lost Concrete deck girder bridge over Beaver Brook on Willow Street Destroyed by flooding Built 1955; Destroyed by flooding March 2018; Replacement opened October 2018
Wilton Road Bridge[Map · Street View] Through truss bridge over Souhegan River on Wilton Road in Greenville Open to traffic Built 1938; rehabilitated 1986