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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
CONTOOCOOK RIVER New Hampshire Good 1967 69.5 m 11,594
NHRR(ABD) New Hampshire Fair 1936 14.9 m 11,581
CONTOOCOOK RIVER New Hampshire Fair 1959 73.8 m 11,574
PINE STREET New Hampshire Fair 1959 34.4 m 11,574
NH175A New Hampshire Fair 1963 40.4 m 11,571
PEMIGEWASSET RIVER New Hampshire Good 1964 129.5 m 11,571
I-93 NB RAMPS New Hampshire Fair 1964 57.0 m 11,571
NHRR New Hampshire Good 1964 44.2 m 11,571
CSX New Hampshire Good 1966 25.0 m 11,540
OTTER BROOK New Hampshire Poor 1933 25.0 m 11,538
I-89 New Hampshire Good 1966 63.9 m 11,531
CONNECTICUT RIVER New Hampshire Good 2003 136.2 m 11,517
WARNER RIVER New Hampshire Fair 1966 50.6 m 11,491
NHRR New Hampshire Good 1964 43.3 m 11,461
PEMIGEWASSET RIVER New Hampshire Fair 1964 129.5 m 11,461
I-93 NB RAMPS New Hampshire Fair 1964 56.1 m 11,461
DRAKESIDE ROAD New Hampshire Fair 1963 46.9 m 11,460
PISCATAQUOG R CSX RD New Hampshire Good 1973 276.8 m 11,356
ASHUELOT RIVER New Hampshire Fair 1965 38.1 m 11,181
EAST BRANCH SACO RIVER New Hampshire Good 1961 43.9 m 11,140
CATSBANE BROOK New Hampshire Good 1937 23.5 m 11,100
CSX(ABD) New Hampshire Good 1926 11.6 m 11,099
PISCATAQUA RIVER RR New Hampshire Good 2017 848.6 m 11,064
FEE TPK New Hampshire Good 1990 49.7 m 11,063
MINNEWAWA BROOK New Hampshire Good 1967 16.2 m 11,056
NH 10 New Hampshire Fair 1972 25.0 m 10,987
I-89 RAMP New Hampshire Fair 1959 18.9 m 10,987
MILLER POND ROAD New Hampshire Good 1972 9.1 m 10,987
STONY BROOK New Hampshire Good 1972 6.4 m 10,987
SKINNER BROOK New Hampshire Fair 1972 7.4 m 10,987
WARNER RIVER New Hampshire Fair 1966 60.0 m 10,883
WEST JOPPA ROAD New Hampshire Good 1966 12.2 m 10,883
WARNER RIVER New Hampshire Fair 1966 49.1 m 10,883
NORTH VILLAGE ROAD New Hampshire Good 1966 17.7 m 10,883
COLLINS ST SQUAM RIVER New Hampshire Good 1963 54.6 m 10,878
NHRR New Hampshire Good 1963 42.4 m 10,878
NH132 New Hampshire Fair 1963 47.2 m 10,878
NH132 New Hampshire Fair 1964 39.3 m 10,878
COLLINS ST SQUAM RIVER New Hampshire Good 1963 54.6 m 10,875
NHRR New Hampshire Good 1963 42.4 m 10,875
NH132 New Hampshire Fair 1964 39.3 m 10,875
NH132 New Hampshire Good 1963 49.7 m 10,875
NH175A New Hampshire Fair 1963 40.4 m 10,870
US 3 NH 25 New Hampshire Good 1963 21.3 m 10,870
NHRR(ABD) New Hampshire Fair 1963 32.0 m 10,859
WEST JOPPA ROAD New Hampshire Good 1966 12.3 m 10,849
NORTH VILLAGE ROAD New Hampshire Fair 1966 20.1 m 10,849
NH103 New Hampshire Fair 1968 27.4 m 10,849
ELM STREET New Hampshire Fair 1978 23.8 m 10,814
SKINNER BROOK New Hampshire Fair 1959 11.0 m 10,804

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.