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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
BEARDS BROOK New Hampshire Good 1965 7.3 m 463
ANDREW BROOK New Hampshire Good 2011 15.0 m 458
BLACKWATER RIVER New Hampshire Poor 1954 22.3 m 457
RING BROOK New Hampshire Good 2011 16.8 m 455
SUNCOOK RIVER New Hampshire Good 1981 53.3 m 453
EXETER RIVER New Hampshire Fair 1967 9.4 m 452
MOHAWK RIVER New Hampshire Poor 1935 17.1 m 451
EASTMAN BROOK New Hampshire Fair 1949 7.0 m 451
EASTMAN BROOK New Hampshire Good 1936 8.3 m 451
PISCASSIC RIVER New Hampshire Good 2024 7.8 m 449
STONY BROOK New Hampshire Good 2016 8.2 m 448
CONNECTICUT RIVER New Hampshire Fair 1930 93.9 m 444
CLAY BROOK New Hampshire Good 2007 7.9 m 442
MAD RIVER New Hampshire Fair 1978 32.0 m 441
PEABODY RIVER New Hampshire Good 1950 38.1 m 441
S BR PISCATAQUOG RIVER New Hampshire Good 1940 19.5 m 440
MEADOW BROOK New Hampshire Good 2023 14.9 m 440
HOYT BROOK New Hampshire Good 2008 13.5 m 439
MOHAWK RIVER New Hampshire Fair 1929 21.3 m 438
CSX New Hampshire Poor 1920 12.5 m 438
FOGG BROOK New Hampshire Fair 1974 6.1 m 436
HAM BRANCH New Hampshire Poor 1920 15.8 m 436
POND BROOK New Hampshire Fair 1950 11.6 m 435
MOOSE BROOK New Hampshire Good 1930 7.3 m 431
WARNER RIVER New Hampshire Fair 1840 23.2 m 428
SUNCOOK RIVER New Hampshire Fair 1948 33.2 m 427
CALIFORNIA BROOK New Hampshire Good 2013 13.7 m 425
NH101 New Hampshire Good 1995 71.6 m 423
CATSBANE BROOK New Hampshire Fair 1963 7.0 m 421
OTTER BROOK New Hampshire Good 1992 8.5 m 421
STINSON BROOK New Hampshire Good 1936 8.2 m 418
EXETER RIVER New Hampshire Fair 1930 16.2 m 416
MAD RIVER New Hampshire Fair 1968 51.2 m 415
BAKER RIVER New Hampshire Poor 1928 31.1 m 410
MILLERS RIVER New Hampshire Good 2003 10.4 m 406
US 3 New Hampshire Good 1986 45.4 m 402
NORTH BRANCH RIVER New Hampshire Fair 1984 18.3 m 401
NORTH BRANCH RIVER New Hampshire Good 1985 13.7 m 400
CSX New Hampshire Fair 1930 12.5 m 400
HERMIT BROOK New Hampshire Good 2017 10.4 m 387
WEST BRANCH BROOK New Hampshire Fair 2001 16.3 m 386
UPPER AMMONOOSUC RIVER New Hampshire Good 1862 40.1 m 379
KIMPTON BROOK New Hampshire Fair 1968 10.1 m 378
STANLEY BROOK New Hampshire Fair 1985 8.8 m 376
PLEASANT STREAM New Hampshire Good 2004 18.4 m 375
SOUCOOK RIVER New Hampshire Poor 1934 44.5 m 372
SUCKER BROOK New Hampshire Fair 1942 7.0 m 370
COLD RIVER New Hampshire Good 1961 48.2 m 369
COLD RIVER New Hampshire Fair 1964 28.7 m 369
OX BROOK New Hampshire Good 1986 7.3 m 367

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.