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Browse Bridge Database

2,549 bridges in the FHWA National Bridge Inventory in New Hampshire.

National Bridge Inventory Database

Browse 2,549 bridges from the Federal Highway Administration National Bridge Inventory. Filter by state, condition rating, or search by name and location.

Clear
BridgeLocationConditionYear BuiltLengthADT
NHRR(ABD) New Hampshire Good 1960 14.6 m 8,251
I-95 New Hampshire Fair 1972 82.6 m 8,244
US 1 BYPASS New Hampshire Good 2015 41.5 m 8,230
MOUNTAIN BROOK New Hampshire Fair 1939 31.7 m 8,225
LITTLE COHAS BROOK New Hampshire Good 2011 134.0 m 8,168
NH 9 New Hampshire Good 1988 49.0 m 8,164
SOUCOOK RIVER New Hampshire Good 1988 120.7 m 8,164
HORSE CORNER ROAD New Hampshire Good 1988 21.6 m 8,164
NHRR(ABD) New Hampshire Fair 1948 26.8 m 8,130
RECREATION TRAIL New Hampshire Good 2009 31.1 m 8,122
NH 25 New Hampshire Fair 1969 30.5 m 8,081
MILL POND New Hampshire Fair 1928 17.1 m 8,066
NHRR(ABD) New Hampshire Poor 1957 21.6 m 8,066
MALLEGO BROOK New Hampshire Fair 1960 16.5 m 8,063
US 3 New Hampshire Fair 1968 32.0 m 8,047
US 3 New Hampshire Good 2006 50.3 m 8,021
SUNCOOK RIVER New Hampshire Good 1958 66.3 m 7,989
AMMONOOSUC RIVER New Hampshire Good 1950 47.2 m 7,962
RICKERS BROOK New Hampshire Good 1939 7.3 m 7,961
LITTLE SUGAR RIVER New Hampshire Fair 1964 8.2 m 7,934
NHNCRR New Hampshire Good 1956 8.5 m 7,880
PISCATAQUOG RIVER New Hampshire Fair 1939 19.8 m 7,831
US 3 New Hampshire Fair 1968 32.0 m 7,818
NUBANUSIT BROOK New Hampshire Fair 1936 16.5 m 7,812
CSX PEDESTRIAN New Hampshire Fair 1936 13.1 m 7,773
OUTLET PRATT POND New Hampshire Fair 1956 9.1 m 7,682
BLOOD BROOK New Hampshire Good 1930 7.3 m 7,670
PEMIGEWASSET RIVER New Hampshire Good 2006 111.4 m 7,661
MASCOMA RIVER New Hampshire Good 1993 46.6 m 7,633
CRYSTAL LAKE BROOK New Hampshire Good 1941 23.2 m 7,633
MASCOMA RIVER New Hampshire Good 1965 35.7 m 7,633
PEMIGEWASSET RIVER New Hampshire Good 1969 124.7 m 7,613
NHRR New Hampshire Good 1970 57.0 m 7,613
OWL STREET New Hampshire Fair 1968 23.9 m 7,613
NH 49 New Hampshire Good 1968 27.3 m 7,613
SALMON BROOK New Hampshire Fair 1950 11.0 m 7,604
OTTER BROOK New Hampshire Good 2020 49.8 m 7,539
PINE RIVER New Hampshire Good 1976 8.5 m 7,537
PINE RIVER New Hampshire Fair 1930 7.6 m 7,537
TIOGA RIVER New Hampshire Fair 1965 10.7 m 7,514
CHOCORUA RIVER New Hampshire Good 1939 6.7 m 7,502
NHRR New Hampshire Good 1970 56.6 m 7,498
OWL STREET New Hampshire Good 1968 23.2 m 7,498
NH 49 New Hampshire Good 1968 27.4 m 7,498
PEMIGEWASSET RIVER New Hampshire Good 1969 124.7 m 7,498
MERRYMEETING RIVER New Hampshire Good 2009 13.0 m 7,487
COFFIN BROOK New Hampshire Good 1930 6.7 m 7,487
US 3 NHRR New Hampshire Fair 1970 51.2 m 7,483
US 1 NB New Hampshire Fair 1963 39.9 m 7,428
WEST BRANCH BELA BROOK New Hampshire Good 1940 9.4 m 7,414

Frequently Asked Questions

The National Bridge Inventory (NBI) is a federal database maintained by the Federal Highway Administration containing inspection data for all bridges on public roads in the U.S. with a span of more than 20 feet. Bridge owners must inspect each structure at least every 24 months.

ADT stands for Average Daily Traffic — the average number of vehicles crossing the bridge per day. Bridges are sorted by ADT by default because high-traffic bridges in poor condition pose the greatest risk to the most people.

Yes. Use the search field above to find bridges by name, location, or features crossed. You can also combine the search with state and condition filters to narrow your results.