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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
NH108 New Hampshire Good 1999 70.1 m 21,354
NH108 CSX(ABD) New Hampshire Poor 1957 91.4 m 21,323
CONNECTICUT RIVER NECRR New Hampshire Poor 1966 257.9 m 21,268
I-293 FEE TPK New Hampshire Good 1977 99.4 m 21,233
CHESTER ROAD New Hampshire Good 1981 21.3 m 21,220
TAYLOR RIVER New Hampshire Fair 1965 10.7 m 21,187
MERRIMACK RIVER New Hampshire Good 1981 143.6 m 21,111
PINE ROAD New Hampshire Good 1997 22.4 m 21,085
LITTLE RIVER New Hampshire Good 1997 50.6 m 21,085
CONNOR FARM ROAD New Hampshire Good 2000 7.3 m 21,085
MAIN STREET New Hampshire Good 1982 22.8 m 21,050
LAMPREY RIVER New Hampshire Good 1983 37.9 m 21,050
NH107 New Hampshire Good 1983 40.3 m 21,050
CHESTER ROAD New Hampshire Good 1981 21.3 m 21,002
NH101 New Hampshire Fair 1976 71.3 m 20,968
TURKEY POND New Hampshire Poor 1959 73.2 m 20,703
PISCASSIC RIVER New Hampshire Good 1997 16.2 m 20,631
CSX New Hampshire Good 2000 71.0 m 20,544
FEE TPK New Hampshire Good 1999 69.5 m 20,508
NH 3A New Hampshire Good 1956 60.0 m 20,431
NH 3A New Hampshire Good 1957 59.4 m 20,431
SILK FARM ROAD New Hampshire Good 1959 51.5 m 20,412
TURKEY POND New Hampshire Poor 1959 73.2 m 20,387
STICKNEY HILL ROAD New Hampshire Fair 1959 15.2 m 20,345
SPICKET RIVER New Hampshire Fair 1900 7.9 m 20,229
US 3 New Hampshire Good 2006 51.8 m 20,158
PISCASSIC RIVER New Hampshire Good 1997 16.2 m 20,130
SILK FARM ROAD New Hampshire Good 1959 51.5 m 20,036
NH 13 New Hampshire Good 1959 44.8 m 20,036
STICKNEY HILL ROAD New Hampshire Fair 1959 15.2 m 20,003
TRUCK ROAD MASCOMA RIVER New Hampshire Fair 1966 70.4 m 19,997
US 4 NH 10 New Hampshire Fair 1966 35.1 m 19,997
BRIDGE STREET New Hampshire Fair 1961 18.3 m 19,964
CSX New Hampshire Good 1992 27.4 m 19,888
NH104 NH132 New Hampshire Fair 1963 44.8 m 19,812
BELLAMY RIVER New Hampshire Good 1998 347.1 m 19,707
BUNKER CREEK New Hampshire Good 2020 19.3 m 19,707
I-95 New Hampshire Fair 1976 84.1 m 19,641
STORRS STREET CSX New Hampshire Good 1970 59.4 m 19,639
PEQUAWKET POND New Hampshire Fair 1940 9.1 m 19,487
NH 12A New Hampshire Good 2012 48.2 m 19,291
JOE ENGLISH BROOK New Hampshire Fair 1936 6.7 m 19,233
PULPIT BROOK New Hampshire Good 2023 16.2 m 19,233
US202 NH 16 SP TPK New Hampshire Good 2011 59.4 m 19,200
SOUTH POLICY STREET New Hampshire Good 1960 44.8 m 19,197
WEST ROAD New Hampshire Good 1960 11.6 m 19,156
I-89 RAMP New Hampshire Good 1959 45.1 m 18,981
I-93 NB New Hampshire Fair 2008 46.6 m 18,966
I-93 SB New Hampshire Good 2008 52.7 m 18,966
WEST ROAD New Hampshire Good 1960 11.6 m 18,806

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.