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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
RED HILL RIVER New Hampshire Fair 1940 8.2 m 9,873
CSX New Hampshire Good 2007 57.8 m 9,859
NH 11 New Hampshire Fair 1967 25.6 m 9,810
COLUMBUS AVENUE New Hampshire Good 1967 21.0 m 9,810
BOG ROAD New Hampshire Fair 1967 56.4 m 9,810
HENNIKER ST New Hampshire Good 2002 30.8 m 9,776
US202 New Hampshire Good 2001 26.5 m 9,776
NH 11 New Hampshire Fair 1967 25.6 m 9,751
COLUMBUS AVENUE New Hampshire Fair 1967 21.0 m 9,751
COUNTY ROAD New Hampshire Good 1967 16.5 m 9,751
BOG ROAD New Hampshire Fair 1967 56.4 m 9,751
JOHNS RIVER New Hampshire Fair 1938 20.7 m 9,718
BMRR New Hampshire Good 2011 38.4 m 9,696
STOCKER BROOK New Hampshire Fair 1967 8.8 m 9,692
NH114 New Hampshire Good 1967 18.3 m 9,692
NH 10 New Hampshire Fair 1967 27.1 m 9,692
STONEY BROOK ROAD New Hampshire Fair 1967 21.0 m 9,692
STONEY BROOK ROAD New Hampshire Good 1968 19.8 m 9,692
RED WATER BROOK New Hampshire Fair 1997 12.8 m 9,640
SOUCOOK RIVER New Hampshire Good 1996 35.4 m 9,638
SOUCOOK RIVER New Hampshire Fair 1952 6.7 m 9,549
FEE TPK New Hampshire Good 1990 71.9 m 9,532
MERRIMACK RIVER New Hampshire Good 1983 24.7 m 9,517
STONEY BROOK ROAD New Hampshire Good 1968 19.8 m 9,480
STOCKER BROOK New Hampshire Fair 1967 8.8 m 9,480
NH114 New Hampshire Good 1967 18.6 m 9,480
STONEY BROOK ROAD New Hampshire Fair 1967 20.7 m 9,480
PISCATAQUA RIVER New Hampshire Good 1921 275.1 m 9,471
FEE TPK SB OFF RAMP New Hampshire Good 2000 36.9 m 9,465
STEVENS BROOK ROAD New Hampshire Fair 1967 12.8 m 9,459
GILE POND ROAD New Hampshire Good 1967 17.7 m 9,459
STEVENS BROOK ROAD New Hampshire Fair 1967 12.2 m 9,452
GILE POND ROAD New Hampshire Fair 1967 17.4 m 9,452
I-95 New Hampshire Good 1999 104.1 m 9,431
I-95 New Hampshire Good 2000 104.5 m 9,431
HAMPTON RIVER New Hampshire Poor 1949 365.5 m 9,402
OTTERVILLE ROAD New Hampshire Fair 1967 22.9 m 9,402
GEORGES MILLS ROAD New Hampshire Good 1968 27.4 m 9,402
KING HILL ROAD New Hampshire Fair 1967 26.7 m 9,399
NORTH HOMINY POT RD New Hampshire Fair 1967 15.2 m 9,399
NH114 New Hampshire Fair 1967 36.9 m 9,399
NH114 New Hampshire Fair 1967 36.9 m 9,388
NORTH HOMINY POT RD New Hampshire Fair 1967 15.0 m 9,388
KING HILL ROAD New Hampshire Fair 1967 26.7 m 9,388
PISCATAQUOG RIVER New Hampshire Fair 1972 25.6 m 9,373
WINNIPESAUKEE RIVER New Hampshire Fair 1977 29.0 m 9,362
CONNECTICUT RIVER NECRR New Hampshire Good 1983 193.5 m 9,354
NH 11A New Hampshire Fair 1965 24.8 m 9,349
I-393 US 4 US202 New Hampshire Fair 1978 89.9 m 9,347
PEMIGEWASSET RIVER New Hampshire Fair 1987 125.3 m 9,297

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.