Hillsborough County

NameLocationStatusDesignYear BuiltYear LostSpan Length (ft.)Total Length (ft.)
2nd New Hampshire Turnpike North Bridge2nd New Hampshire Turnpike North over Contoocook RiverOpen to trafficModern polygonal Warren pony truss2010--108.9117.5
Allds Street BridgeAllds Street over Salmon BrookOpen to trafficStone arch1892--29.936.1
Amherst BridgeBypassed Alignment of Boston Post Road over Beaver BrookClosed to all trafficStone culvert----11.241.0
Amoskeag BridgeBridge Street over Merrimack RiverDestroyed by floodingThrough truss18251851----
Amoskeag Company BridgeBridge over Merrimack RiverTown lattice truss------404.0
Amoskeag Falls Bridge 29-06-20xBridge over Merrimack RiverCollapsedThrough truss18541920--591.0
Antrim Road BridgeAntrim Road over Contoocook RiverOpen to trafficDeck arch1929--107.9144.0
Baboosic Brook BridgeMcgaw Bridge Road over Baboosic BrookOpen to trafficSteel stringer1940--23.029.9
Baldwin Street BridgeBaldwin Street over BMRROpen to trafficTimber stringer1935--23.073.2
Bartlett Hill Road BridgeBartlett Hill Road over Piscataquog RiverOpen to trafficTimber stringer1930--24.026.9
Blood Brook BridgeNH 101 over Blood BrookOpen to trafficStone arch1927--16.120.0
BM - Alcott TrestleBridge on B&M Keene BranchRemoved but not replacedWarren deck truss with alternating verticals--1938----
BM - Contoocook River BridgeBoston & Maine Railroad over Antrim RoadDerelict/abandonedSteel stringer1930----296.0
BM - Goffstown Covered BridgeBoston & Maine Railroad over Piscataquog RiverDestroyed by fireThrough truss19011976117.0117.0
BM - Great TrestleB&M Greenville Branch over Souhegan River and NH-31Removed but not replacedDeck plate girder19081984--611.0
BM - Hillsborough Covered BridgeBoston & Maine RR over Contoocook RiverDestroyed by arsonists in 1985Town lattice truss19031985--219.0
BM - Merrimack River BridgeB&M WN&P Division over Merrimack RiverRemoved but not replacedBaltimore through truss19101944----
BM - Souhegan River Covered Deck TrussBoston & Maine railroad over Souhegan RiverDestroyed by fireDeck truss18511907--626.0
Boglie Brook BridgeNH 136 over Boglie BrookOpen to trafficStone arch1901--17.122.0
Bypassed Historic BridgeBypassed Historic over Souhegan RiverClosed to all trafficDeck arch1916--60.060.0
Canal Street BridgeCanal Street over Nashua RiverOpen to trafficDeck arch1928--76.1160.1
Castle Hill Road BridgeCastle Hill Road over Beaver BrookDestroyed by severe weatherTimber stringer1920201722.026.9
Clarkville Road BridgeClarkville Road over South Branch Piscataquog RiverOpen to trafficTimber stringer1930--32.233.1
Cohas Avenue BridgeCohas Avenue over Cohas BrookOpen to trafficStone arch1900--16.146.9
Country Road BridgeCountry Road over H20 LOOM PND OUTLETReplaced by a new bridgeTimber stringer1920200529.937.1
County Farm BridgeOld County Farm Road over Whiting BrookOpen to trafficStone arch1885--17.1--
Daniel Webster Highway BridgeDaniel Webster Highway over Nashua RiverOpen to trafficDeck arch1925--57.1158.1
Daniel Webster Highway BridgeDaniel Webster Highway over Salmon BrookOpen to trafficStone arch1901--18.024.0
Depot Street BridgeDepot Street over ReliefOpen to trafficDeck arch1914--12.112.1
Drury Stone ArchAbandoned Road over Contoocook RiverOpen to pedestrians onlyStone arch--------
Elm Street BridgeElm Street over Souhegan RiverOpen to trafficStone arch1917--60.0151.9
Fairmount Street BridgeFairmount Street over BMRROpen to trafficTimber stringer1930--25.9101.1
Frye Mill Road BridgeFrye Mill Road over Burton Pond OutletOpen to trafficTimber stringer1920--23.027.9
Gage Hill Road BridgeGage Hill Road over Beaver BrookOpen to trafficStone arch1900--19.045.9
Gleason Falls Bridge, Stone ArchRoad over Beards BrookOpen to trafficStone arch--------
Granite Street BridgeGranite Street over Merrimack RiverOpen to trafficSteel stringer1954--127.0471.0
Granite Street Bridge (1851-1896)Granite St over Merrimack RiverReplaced by a new bridgeDeck truss18511896--485.0
Granite Street Bridge (1896-1954)Granit St over Merrimack RiverReplaced by a new bridgePratt through truss18961954--485.0
Great Brook BridgeNH 101A (Elm Street) over Great BrookOpen to trafficStone arch1933--18.023.0
Great Brook BridgeBypassed Historic over Great BrookClosed to all trafficSlab1920--5.919.0
Green BridgeBypassed Historic over Souhegan RiverDemolishedPratt through truss19102015146.0151.9
Hancock-Greenfield Covered Bridge 29-06-02Forrest Road over Contoocook RiverOpen to trafficPratt through truss1937--82.087.9
Hermit Road BridgeHermit Road over Canal InletOpen to trafficStone arch1900--7.924.0
HighbridgeTurnpike Road/Route 124 over Souhegan RiverOpen to trafficStone arch1820------
Kelley's Falls BridgeKelley Street over Piscataquag RiverReplaced by a new bridgeWarren deck truss19141949--900.0
Lyndeborough Road BridgeLyndeborough Road over South Branch Piscataquog RiverOpen to trafficTimber stringer1940--60.063.7
Main Street BridgeMain Street over Contoocook RiverOpen to trafficConcrete rigid frame1940--75.186.0
MBRX - Glass Factory Road OverpassMilford-Bennington Railroad over Glass Factory RoadOpen to trafficSteel stringer--------
MBRX - Souhegan River BridgeMilford-Bennington Railroad over Souhegan RiverOpen to trafficWarren through truss with all verticals--------
MBRX - Stony Brook BridgeMilford-Bennington Railroad over Stony BrookOpen to trafficDeck plate girder--------
McGregor BridgeBridge Street over Merrimack RiverDestroyed by floodingLenticular deck truss18811936140.0930.0
Merrimack River Goffs Falls Road BridgeGoffs Falls Road over Merrimack RiverRemoved but not replacedThrough truss--------
Milford Swing BridgePedestrian walkway over Souhegan RiverOpen to pedestrians onlyWire suspension1889----200.0
Mill Street BridgeMill Street over Souhegan RiverOpen to trafficStone arch1925--36.136.1
Moeckel Road BridgeMoeckel Road over Golden BrookClosed to all trafficTimber stringer1920--9.814.1
Moore's Crossing Bridge (1852)RR over Merrimack RiverReplaced by a new bridgeThrough truss18521868--664.0
Moore's Crossing Bridge (1868)Bridge over Merrimack RiverReplaced by a new bridgeTown lattice truss18681903--664.0
Moose Brook BridgeRobinson Road over Moose BrookOpen to trafficSlab1990--24.927.9
Nashua Millyard FootbridgeFactory Footpath over Nashua RiverOpen to pedestrians onlyPratt through truss1903------
Nashua River BridgeNH 111 over Nashua RiverOpen to trafficDeck arch1950--78.1252.0
North Weare Branch Railroad BridgeB&MRR over Merrimack RiverDestroyed by fireDeck truss18491871--574.0
Notre Dame BridgeBridge Street over Merrimack River, Everett Turnpike, BMRRReplaced by a new bridgeSteel through arch19361988444.01459.0
Old Bridge Street BridgeOld Bridge Street over Beaver BrookOpen to trafficStone arch1920--19.042.0
Old Carr BridgeJones Road over Beard's BrookOpen to trafficStone arch1840--21.044.9
Old Twin Bridge Road BridgeOld Twin Bridge Road over Baboosic BrookClosed to all trafficTimber stringer1920--16.121.0
Old Twin Bridge Road BridgeOld Twin Bridge Road over Baboosic BrookClosed to all trafficTimber stringer1920--22.027.9
Piscataquog River BridgeNH 3A (South Main Street) over Piscataquog RiverOpen to trafficStone arch1894--38.181.7
Piscataquog River BridgeNH 13/NH 114 over Piscataquog RiverOpen to trafficDeck arch1928--89.989.9
Piscataquog Trail - Merrimack River BridgePiscataquog Trail over Merrimack River & Everett Turnpike (NH 3A/I-293)Open to pedestrians onlyWarren deck truss with all verticals--------
Queen City BridgeUS 3/NH 3A over Merrimack RiverOpen to trafficWarren deck truss with all verticals1923--153.91190.0
Russell Hill Road Bridge 29-06-P1Russell Hill Road over Blood BrookOpen to PedestriansLattice pony truss1860--44.952.2
Russell Station Road BridgeRussell Station Road over Rand BrookOpen to trafficTimber stringer1930--23.028.9
Sagamore BridgeLowell Road over Merrimack RiverReplaced by a new bridgeClosed-spandrel arch--1973----
Sawyer BridgeOld US 202 over North Branch RiverOpen to pedestrians onlyStone arch1867--30.880.1
Souhegan River BridgeUS 3 over Souhegan RiverOpen to trafficStone arch1921--60.0112.9
Souhegan River BridgeNH 13 over Souhegan RiverOpen to trafficStone arch1931--49.9111.9
ST - Merrimack River Bridge (Manchester)Pan Am Railways over Merrimack RiverOpen to trafficBaltimore through truss1930------
ST - Triple BridgeSpringfield Terminal Railway over Nashua RiverWestern truss still in use, other 2 abandoned.Warren through truss--------
Stage Coach Road BridgeStage Coach Road over Burton Pond OutletOpen to trafficTimber stringer1940--25.929.9
Stony Brook BridgeNH 31 over Stony BrookOpen to trafficStone arch1905--49.957.1
Taylor Falls Arch BridgeRoad over Merrimack RiverReplaced by a new bridgeClosed-spandrel arch19111973100.0282.0
Taylor Falls Covered BridgeRoad over Merrimack RiverReplaced by a new bridgeBurr arch-truss18271881--475.0
Taylor Falls Iron BridgeRoad over Merrimack RiverReplaced by a new bridgeLenticular through truss18821911176.0494.0
Temple Brook BridgeNH 45 over Temple BrookOpen to trafficStone arch1951--12.116.1
Temple Road BridgeTemple Road over Blood BrookOpen to trafficStone arch1901--19.048.9
The Steam BridgeBridge over Merrimack RiverBowstring through truss------416.0
Thompson Crossing BridgeOld Thompson Crossing over Contoocook RiverDerelict/abandonedPratt through truss1893--96.196.1
US202 North Branch River BridgeUS 202 over N Branch RiverOpen to trafficConcrete rigid frame1988--49.9111.9
West Deering Road BridgeWest Deering Road over Contoocook RiverReplaced by a new bridgeWarren pony truss with alternating verticals1905201071.982.0
Wilton Road BridgeWilton Road over Souhegan RiverOpen to trafficPratt through truss1938--168.0172.9