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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
INDIAN RIVER New Hampshire Poor 1956 15.5 m 365
KEZAR LAKE OUTLET New Hampshire Fair 1940 7.9 m 364
REEL BROOK New Hampshire Good 1928 10.1 m 360
HAM BRANCH New Hampshire Fair 1932 11.0 m 360
BEAVER BROOK New Hampshire Poor 1970 6.1 m 356
SWIFT RIVER New Hampshire Good 1956 47.5 m 356
I-93 New Hampshire Good 1985 82.0 m 354
WEST BRANCH BROOK New Hampshire Fair 1980 9.5 m 349
SHEDD BROOK New Hampshire Fair 1956 8.8 m 348
GRANT BROOK New Hampshire Fair 1978 11.3 m 347
NASH STREAM New Hampshire Fair 1977 24.4 m 345
GREAT BROOK New Hampshire Fair 1950 6.7 m 342
NHRR New Hampshire Good 1998 25.6 m 341
WHEELOCK BROOK New Hampshire Good 2011 8.1 m 340
SMITH RIVER New Hampshire Good 2011 10.4 m 335
ANDREW BROOK New Hampshire Fair 1936 10.7 m 330
WARNER RIVER New Hampshire Fair 1979 20.4 m 329
CASCADE BROOK New Hampshire Good 1935 8.2 m 329
NH 16 SP TPK New Hampshire Good 1956 51.5 m 328
POUCHAUG BROOK New Hampshire Fair 1994 7.0 m 327
FURNACE BROOK New Hampshire Good 2009 8.2 m 327
LANE RIVER New Hampshire Good 2002 15.2 m 326
CONTOOCOOK RIVER New Hampshire Good 1970 11.0 m 326
GUNSTOCK RIVER New Hampshire Good 1940 6.4 m 322
RAZOR BROOK New Hampshire Good 1935 7.3 m 318
BOGLIE BROOK New Hampshire Good 2008 7.0 m 318
LITTLE SUGAR RIVER New Hampshire Fair 1930 11.5 m 317
ASHUELOT RIVER New Hampshire Fair 1978 80.8 m 317
GREAT BROOK New Hampshire Good 1968 6.1 m 314
SPENCER BROOK New Hampshire Fair 1919 7.3 m 313
BEEBE RIVER New Hampshire Good 1988 24.4 m 311
S BRANCH SUGAR RIVER New Hampshire Good 1991 16.8 m 309
BEAR BROOK New Hampshire Fair 1950 8.2 m 303
SUNCOOK LAKE CHANNEL New Hampshire Fair 1960 11.0 m 303
CONNECTICUT RIVER New Hampshire Fair 1893 59.4 m 303
SAND BROOK New Hampshire Good 2013 7.9 m 300
SHAKER BROOK New Hampshire Good 1920 15.8 m 300
GREAT BROOK New Hampshire Good 2010 8.8 m 296
BLOW-ME-DOWN BROOK New Hampshire Good 2002 10.7 m 293
SWIFT RIVER New Hampshire Good 1858 36.6 m 292
PATTEN BROOK New Hampshire Poor 1950 9.1 m 289
S BR PISCATAQUOG RIVER New Hampshire Good 2020 32.3 m 289
HEWES BROOK New Hampshire Good 2020 11.6 m 288
ANDROSCOGGIN RIVER New Hampshire Poor 1900 55.5 m 281
ANDROSCOGGIN RIVER New Hampshire Fair 1973 45.7 m 281
BEAVER BROOK New Hampshire Good 2021 7.9 m 279
BEAVER BROOK New Hampshire Good 2009 13.1 m 279
SMITH RIVER New Hampshire Good 1941 32.3 m 276
BLACKWATER RIVER New Hampshire Fair 1951 18.3 m 275
MOHAWK RIVER New Hampshire Good 1977 16.8 m 270

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.