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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
PINE BEND BROOK New Hampshire Good 1948 6.7 m 5,352
SABBADAY BROOK New Hampshire Fair 1953 13.1 m 5,352
MASCOMA RIVER New Hampshire Fair 1969 35.7 m 5,317
NHRR(ABD) New Hampshire Poor 1969 8.5 m 5,317
BEAVER BROOK New Hampshire Good 2019 32.3 m 5,306
BEAVER BROOK New Hampshire Good 1970 7.0 m 5,285
POOR FARM BROOK New Hampshire Fair 1936 9.8 m 5,276
SANGER BROOK New Hampshire Good 1986 8.2 m 5,272
BLACK BROOK New Hampshire Fair 1959 9.1 m 5,250
S BR PISCATAQUOG RIVER New Hampshire Good 1957 65.5 m 5,245
POOR FARM BROOK New Hampshire Poor 1966 9.1 m 5,227
SNYDER BROOK New Hampshire Fair 1966 8.5 m 5,195
MOOSE RIVER New Hampshire Good 1966 17.4 m 5,195
MOOSE RIVER New Hampshire Good 1966 7.0 m 5,195
COLD BROOK New Hampshire Fair 1966 9.4 m 5,195
RECREATIONAL TRAIL New Hampshire Good 1960 37.8 m 5,195
US 1 BYPASS New Hampshire Good 2020 35.3 m 5,190
AMMONOOSUC RIVER New Hampshire Fair 1972 50.3 m 5,178
I-93(RAMP 3S-F) New Hampshire Good 1986 30.9 m 5,171
HANSON BROOK New Hampshire Good 1984 28.0 m 5,171
HARVARD BROOK New Hampshire Good 1984 41.5 m 5,171
NH 12 New Hampshire Good 1978 47.9 m 5,162
RAGGED MOUNTAIN BROOK New Hampshire Good 1959 7.6 m 5,149
WEST ALTON BROOK New Hampshire Fair 1923 6.7 m 5,130
SKOOKUMCHUCK BROOK New Hampshire Fair 1987 102.4 m 5,128
PLEASANT STREAM New Hampshire Fair 1959 31.7 m 5,115
CASCADE BROOK New Hampshire Fair 1960 16.2 m 5,115
ANDREW BROOK New Hampshire Fair 1962 11.9 m 5,102
CONNECTOR ROAD New Hampshire Good 1973 21.9 m 5,102
SKOOKUMCHUCK BROOK New Hampshire Good 1987 102.4 m 5,092
FERGUSON BROOK New Hampshire Fair 1959 7.6 m 5,082
FACTORY ACCESS ROAD New Hampshire Fair 1962 54.6 m 5,082
CLAY BROOK New Hampshire Fair 1932 10.1 m 5,075
SALMON FALLS RIVER New Hampshire Fair 1969 36.0 m 5,060
COLD BROOK New Hampshire Fair 1938 7.9 m 5,048
BEAVER BROOK New Hampshire Good 2010 13.4 m 5,046
LAMPREY RIVER New Hampshire Good 1938 7.9 m 5,028
STAG HOLLOW BROOK New Hampshire Fair 1969 6.7 m 5,009
LAMPREY RIVER New Hampshire Fair 1935 13.8 m 4,960
US302 NH 10 NH 18 NH116 New Hampshire Fair 1959 23.8 m 4,927
COTTAGE STREET New Hampshire Fair 1959 19.8 m 4,927
CSX New Hampshire Good 2004 18.9 m 4,925
EXETER RIVER New Hampshire Fair 1935 37.2 m 4,920
SPIT BROOK ROAD New Hampshire Fair 1993 45.4 m 4,911
I-93 New Hampshire Fair 1981 85.3 m 4,909
WINNIPESAUKEE RIVER New Hampshire Good 1960 29.0 m 4,904
US 3 FEE TPK NB RAMP New Hampshire Good 1955 19.5 m 4,903
S BR PISCATAQUOG RIVER New Hampshire Fair 1947 18.6 m 4,887
SPICKET RIVER New Hampshire Poor 1900 8.8 m 4,883
GALE RIVER New Hampshire Good 1990 22.9 m 4,876

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.