Oldest Bridges in New Hampshire

The oldest bridge in New Hampshire dates to 1832. The table below shows the state's most historic bridges, ranked by year built. Many of these structures have survived well beyond their original design life — click any bridge to see its current condition and inspection history.

How this ranking works

This state list uses the NBI year-built field and links each bridge to its current inspection record. Treat age as a history signal, not a condition score.

Bridge	County	Year Built	Condition	Daily Traffic
Main Street over Ashuelot River	Cheshire	1832	Fair	2,191
West Bath Road over Ammonoosuc R Nhrr(abd)	Grafton	1832	Fair	96
Coombs Bridge RD over Ashuelot River	Cheshire	1837	Fair	618
New Market Road over Warner River	Merrimack	1840	Fair	428
Corbin Bridge Road over Croydon Branch Sugar R	Sullivan	1845	Fair	545
Porter Road over Wild Ammonoosuc River	Grafton	1849	Fair	529
Griffin Mill Road over Maple Falls Brook	Rockingham	1850	Poor	208
W Hopkinton Road over Contoocook River	Merrimack	1853	Fair	558
Joppa Road West over Warner River	Merrimack	1853	Fair	100
Bradford Center RD over W Br Warner River	Merrimack	1854	Good	96
Passaconaway Road over Swift River	Carroll	1858	Good	292
Sawyers Crossing over Ashuelot River	Cheshire	1859	Good	4,250
Hill Road over Perry Stream	Coos	1860	Poor	191
Westport Road over Ashuelot River	Cheshire	1862	Fair	792
Mechanic Street over Israel River	Coos	1862	Fair	750
Northside Road over Upper Ammonoosuc River	Coos	1862	Good	379
Surry RD over Ashuelot River	Cheshire	1863	Fair	1,167
Gunn Mountain Road over Ashuelot River	Cheshire	1864	Good	821
Cornish Toll Br RD over Connecticut River	Sullivan	1866	Poor	2,722
Durgin Bridge Road over Cold River	Carroll	1869	Poor	164
Carlton Road over South Brook	Cheshire	1869	Fair	500
Blair Road over Pemigewasset River	Grafton	1869	Fair	1,584
Nh 16a over Ellis River	Carroll	1876	Fair	2,280
Bumps Intervale over Beebe River	Grafton	1877	Fair	96
Squag City Road over Blow-me-down Brook	Sullivan	1877	Fair	19
Colby Hill Road over Bloods Brook	Sullivan	1880	Fair	137
Bridge Road over Blackwater River	Merrimack	1882	Poor	96
Nh202a over Cocheco River	Strafford	1883	Fair	14,115
Root Hill Road over Mill Brook	Sullivan	1883	Fair	92
River Road over Clay Brook	Grafton	1885	Fair	154
Flume Bus Route over Pemigewasset River	Grafton	1886	Fair	50
East Side Road over Saco River	Carroll	1890	Fair	2,490
Oak Street over Csx	Strafford	1890	Poor	8,749
Allds Street over Salmon Brook	Hillsborough	1892	Fair	9,118
Bog Road over Connecticut River	Coos	1893	Fair	303
Nh149 over Contoocook River	Hillsborough	1893	Fair	4,507
Nh 3a So Main ST over Piscataquog River	Hillsborough	1894	Good	12,740
Belknap Mt Road over Gunstock River	Belknap	1900	Good	886
Brook Road over Salmon Brook	Belknap	1900	Poor	96
Tilton Bridge Road over Salmon Brook	Belknap	1900	Good	96
Us302 Nh 16 over Artist Falls Brook	Carroll	1900	Good	13,702
Bearcamp Pond Road over Bearcamp River	Carroll	1900	Good	96
Mountain Road over Cold Brook	Carroll	1900	Fair	41
Nh109 over Smith River	Carroll	1900	Good	7,358
Broad Brook Road over Broad Brook	Cheshire	1900	Good	96
North Road over Androscoggin River	Coos	1900	Poor	281
River Road over Clay Brook	Grafton	1900	Poor	96
Tunnel Brook Road over Wild Ammonoosuc River	Grafton	1900	Poor	52
Stinson Lake Road over Sucker Brook	Grafton	1900	Good	258
Stinson Lake Road over Brown Brook	Grafton	1900	Good	258
North Shore Road over Georges Brook	Grafton	1900	Good	1,167
Gleason Falls Road over Beards Brook	Hillsborough	1900	Poor	96
Beard Road over Beards Brook	Hillsborough	1900	Fair	96
Second Nh Tpk over Brook	Hillsborough	1900	Fair	721
Second Nh Tpk over Brook	Hillsborough	1900	Good	721
Jones Road over Beards Brook	Hillsborough	1900	Poor	96
Granite Street over Recreation Trail	Hillsborough	1900	Fair	603
Cohas Avenue over Cohas Brook	Hillsborough	1900	Good	2,560
Main Street over Beaver Brook	Hillsborough	1900	Poor	6,111
Nh127 over Tail Race	Merrimack	1900	Fair	3,434
Park Street over Csx	Rockingham	1900	Fair	782
Nh 28 (s Broadway) over Spicket River	Rockingham	1900	Fair	20,229
Bridge Street over Spicket River	Rockingham	1900	Poor	4,883
Nh 75 over Mad River	Strafford	1900	Fair	871
Nh 11 over Connecticut River	Sullivan	1900	Fair	6,519
Thrasher Road over Red Water Brook	Sullivan	1900	Good	505
Lower Main Street over Sugar River	Sullivan	1900	Good	557
Great Hollow Road over Mink Brook	Grafton	1901	Fair	2,168
Temple Road over Blood Brook	Hillsborough	1901	Poor	1,167
Valley Cross Road over Wildcat Brook	Carroll	1905	Fair	151
Nutting Road over Contoocook River	Cheshire	1905	Fair	96
Nutting Road over Contoocook River	Cheshire	1905	Good	1,804
Nh132 over Squam River	Grafton	1905	Fair	3,488
Nh 31 over Stony Brook	Hillsborough	1905	Fair	2,883
Washington Street over Csx	Strafford	1907	Fair	5,525
Bridge Street over Suncook River	Merrimack	1909	Good	96
Nh123 over Connecticut River	Cheshire	1910	Fair	8,425
Dow Avenue over Gale River	Grafton	1910	Fair	235
Tannery Lane over Tannery Pond Outlet	Merrimack	1910	Fair	96
Old Route 3a over Needle Shop Brook	Merrimack	1910	Fair	1
Bennett Road over Csx	Strafford	1910	Fair	657
Winn Hill Road over Sugar River	Sullivan	1910	Fair	96
Mt Orne Road over Connecticut River	Coos	1911	Fair	642
Columbia Bridge RD over Connecticut River	Coos	1912	Fair	180
Packers Falls Road over Lamprey River	Strafford	1912	Good	1,378
Walker Street over Piscataqua R Back Chan	Rockingham	1913	Fair	7,000
Depot Street over Relief	Hillsborough	1914	Good	1,065
Dudley Road over Lamprey River	Rockingham	1914	Poor	547
Old Town Road over Ammonoosuc River	Coos	1915	Good	96
Owen Road over Bishop Brook	Coos	1915	Fair	96
Second Street over Piscataquog (north Br)	Hillsborough	1915	Fair	5,707
US 3 Elm ST over Csx(abd)	Hillsborough	1915	Fair	11,812
Patterson Hill RD over Contoocook River	Merrimack	1915	Fair	147
Wilton Road over Souhegan River	Hillsborough	1917	Fair	6,406
Nh123 over Cold River	Cheshire	1919	Fair	2,804
Yeaton Road over Spencer Brook	Grafton	1919	Fair	313
Shedd Road over Shedd Brook	Hillsborough	1919	Fair	96
Saw Mill Road over Beards Brook	Hillsborough	1919	Fair	592
Coolidge Woods RD over Prescott Brook	Belknap	1920	Good	96
Granite Road over South River	Carroll	1920	Poor	96
Fowlers Mill Road over Swift River	Carroll	1920	Fair	96
Canal Road over Great East Lake Outlet	Carroll	1920	Good	665
Griffin Hill Road over Warren Brook	Cheshire	1920	Good	96
Nh119 over Connecticut River	Cheshire	1920	Poor	8,535
Nh119 over Connecticut River	Cheshire	1920	Poor	8,535
Gilmore Pond Road over Mountain Brook	Cheshire	1920	Fair	628
North Shore Road over Granite Lake Inlet	Cheshire	1920	Fair	96
Pine Woods Road over Mirey Brook	Cheshire	1920	Fair	96
Washburn Road over Mohawk River	Coos	1920	Good	96
Chambers Road over Cherry Mill Brook	Coos	1920	Fair	96
Eastern Corner RD over Beebe River	Grafton	1920	Fair	96
Lafayette Road over Ham Branch	Grafton	1920	Poor	436
River Road over Salmon Hole Brook	Grafton	1920	Fair	161
Gulf Road over Stony Brook	Hillsborough	1920	Good	96
Hilldale Lane over S Br Piscataquog River	Hillsborough	1920	Fair	96
Old Bridge Street over Beaver Brook	Hillsborough	1920	Fair	6,622
Frye Mill Road over Burton Pond Outlet	Hillsborough	1920	Poor	36
Burton Highway over Burton Pond Outlet	Hillsborough	1920	Fair	96
Old Shaker Road over Shaker Brook	Merrimack	1920	Good	300
Old Deerfield Road over Brook	Rockingham	1920	Poor	250
Giles Road over Csx	Rockingham	1920	Good	208
Pond Road over Csx	Rockingham	1920	Poor	438
Cedar Road over Csx	Rockingham	1920	Fair	2,029
Hilldale AVE over Powwow River	Rockingham	1920	Poor	208
Lebanon Street over Salmon Falls River	Strafford	1920	Fair	557
Bridge Street over Cocheco River	Strafford	1920	Good	1,290
Ladieu Road over Bloods Brook	Sullivan	1920	Fair	96
High Street over Sugar River	Sullivan	1920	Fair	505
Main Street over Sugar River	Sullivan	1920	Fair	2,301
Cooper Street over Otter Pond Outlet	Sullivan	1920	Fair	125
Marlow Road over Ashuelot River	Sullivan	1920	Fair	65
Purling Beck Road over Beards Brook	Sullivan	1920	Fair	96
Nh109 over Melvin River	Carroll	1921	Fair	2,151
Elm Street over Ashuelot River	Cheshire	1921	Fair	2,195
US 3 over Souhegan River	Hillsborough	1921	Fair	13,075
US 1 Scott Avenue over Daniel Street	Rockingham	1921	Good	14,207
US 1 over Piscataqua River	Rockingham	1921	Good	9,471
Maple Street over Cold Brook	Carroll	1922	Poor	253
Nh109 over Willey Brook	Carroll	1922	Fair	2,283
Terrace Street over Minnewawa Brook	Cheshire	1922	Fair	178
Gale Chandler Road over Mill Brook	Grafton	1922	Fair	118
Antrim Road over Monadnock Mill Canal	Hillsborough	1922	Poor	2,233
US 3 Nh 11 over Winnipesaukee River	Merrimack	1922	Fair	12,980
Nh 11 over West Alton Brook	Belknap	1923	Fair	5,130
US 3 Nh 3a over I-293 Nh 3a Csx Merr R	Hillsborough	1923	Fair	22,640
Lee Hook Road over Lamprey River	Strafford	1923	Fair	1,630
Nh202a over Isinglass River	Strafford	1923	Fair	2,212
Nh 11 Ramp over Sugar River	Sullivan	1923	Fair	1,110
Oxbow Road over Suncook River	Belknap	1924	Fair	73
School Street over Nhrr	Belknap	1924	Fair	1,398
US 3 over Bishop Brook	Coos	1924	Good	1,820
Hollow Road over Stratford Bog Brook	Coos	1924	Fair	34
Nh 3a over Newfound River	Grafton	1924	Poor	5,690
Black Hall Road over Little Suncook River	Merrimack	1924	Fair	2,133
Nh113 over Chocorua River	Carroll	1925	Fair	2,159
Hancock Road over Nubanusit Brook	Cheshire	1925	Fair	489
Hancock Road over Nubanusit Brook	Cheshire	1925	Fair	96
Nh 25a over Jacobs Brook	Grafton	1925	Fair	1,116
Mill Street over Souhegan River	Hillsborough	1925	Fair	1,043
Daniel Webster HWY over Nashua River	Hillsborough	1925	Fair	16,730
Sharon Road over Contoocook River	Hillsborough	1925	Fair	646
Nh152 over North River	Rockingham	1925	Poor	3,719
Red Water Brook RD over Red Water Brook	Sullivan	1925	Fair	211
Nh 11a over Gunstock River	Belknap	1926	Fair	4,557
Nh 16 over Sessions Brook	Coos	1926	Good	1,529
Nh 26 over Clear Stream	Coos	1926	Good	981
Lyman Road over Mill Brook	Grafton	1926	Good	573
Old Route 3a over Smith River	Grafton	1926	Good	50
South Village Road over Soucook River	Merrimack	1926	Fair	3,138
Nh108 over Powwow River	Rockingham	1926	Good	1,716
Nh 27(exeter Rd) over Csx(abd)	Rockingham	1926	Good	11,099
Spring Street over Cocheco River	Strafford	1926	Poor	770
Old Nh 11 over Merrymeeting River	Strafford	1926	Fair	662
Old Lake Shore RD over Gunstock River	Belknap	1927	Good	672
Nh113 over Bearcamp River	Carroll	1927	Good	716
Fowler River Road over Bog Brook	Grafton	1927	Good	823
Nh142 over Ammonoosuc River	Grafton	1927	Poor	1,167
US 3 over West Branch Brook	Grafton	1927	Fair	1,054
Nh175 over Mad River	Grafton	1927	Fair	2,020
Nh116 over Wild Ammonoosuc River	Grafton	1927	Fair	882
North Groton Road over Small Brook	Grafton	1927	Fair	173
Titus Road over Mill Brook	Grafton	1927	Fair	80
Stinson Lake Road over Stinson Brook	Grafton	1927	Fair	857
Mill Road over Gridley River	Hillsborough	1927	Fair	95
Nh152 over Csx	Rockingham	1927	Good	4,040
Nh111 over Csx	Rockingham	1927	Good	3,778
Nh 10 over Ash Swamp Brook	Sullivan	1927	Good	3,532
Us302 over Albany Brook	Carroll	1928	Good	2,713
Nh 16a over E Br Saco River	Carroll	1928	Poor	1,078
Tuftonboro Road over Beech River	Carroll	1928	Good	910
Nh 12 over Mill Pond	Cheshire	1928	Fair	8,066
Nh 12 over Mill Brook	Cheshire	1928	Fair	6,478
Tunnel Stream Road over Tunnel Brook	Grafton	1928	Fair	52
Prospect Street over Ammonoosuc River	Grafton	1928	Fair	178
Nh 49 over Pemigewasset River	Grafton	1928	Poor	1,917
Nh116 over Reel Brook	Grafton	1928	Good	360
US 4 over Tewksbury Pond Outlet	Grafton	1928	Fair	1,858
Nh 25 over North Branch River	Grafton	1928	Fair	1,072
Us302 over Connecticut River	Grafton	1928	Fair	7,367
Millbrook Road over Mill Brook	Grafton	1928	Good	1,167