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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
MELVIN RIVER New Hampshire Good 1977 6.1 m 267
CALIFORNIA BROOK New Hampshire Good 2005 10.8 m 266
CHICKWOLNEPY STREAM New Hampshire Good 1950 25.0 m 264
SQUAM RIVER New Hampshire Fair 1983 17.2 m 263
ACADEMY BROOK New Hampshire Good 2023 12.2 m 260
LAMPREY RIVER New Hampshire Good 2010 34.1 m 259
PARTRIDGE BROOK New Hampshire Fair 1930 13.7 m 259
SUCKER BROOK New Hampshire Good 1900 8.1 m 258
BROWN BROOK New Hampshire Good 1900 12.5 m 258
HALFWAY BROOK New Hampshire Good 1949 11.9 m 256
JACOBS BROOK New Hampshire Fair 1947 8.8 m 256
WONALANCET RIVER New Hampshire Fair 1965 12.2 m 255
TOWN LINE BROOK New Hampshire Good 1970 9.4 m 255
WONALANCET RIVER New Hampshire Good 1966 8.5 m 255
WHITEFACE RIVER New Hampshire Fair 1941 11.9 m 254
COLD BROOK New Hampshire Poor 1922 7.3 m 253
BROOK New Hampshire Poor 1920 7.3 m 250
MCDOWELL RESERVOIR New Hampshire Poor 1950 68.3 m 247
MILL BROOK New Hampshire Good 2002 19.5 m 246
JACOBS BROOK New Hampshire Poor 1930 15.8 m 244
MELVIN RIVER New Hampshire Fair 1940 6.7 m 244
NHRR(ABD) New Hampshire Good 1930 18.9 m 243
PETTYBORO BROOK New Hampshire Fair 1972 7.0 m 243
GREAT BROOK New Hampshire Good 2008 10.1 m 242
ARCHERTOWN BROOK New Hampshire Good 2014 12.9 m 237
STANLEY BROOK New Hampshire Fair 1935 8.2 m 235
GALE RIVER New Hampshire Fair 1910 21.9 m 235
EXETER RIVER New Hampshire Poor 1941 14.3 m 234
ROARING BROOK New Hampshire Poor 1950 13.1 m 233
CHARLES BROOK New Hampshire Fair 1938 9.4 m 232
CHANDLER BROOK New Hampshire Fair 1931 7.6 m 232
STRATFORD BOG BROOK New Hampshire Good 1998 16.5 m 230
SMITH RIVER New Hampshire Good 2005 30.6 m 227
FERGUSON BROOK New Hampshire Good 2002 9.4 m 226
JOHNSON BROOK New Hampshire Good 1948 8.8 m 222
EASTMAN BROOK New Hampshire Good 1988 26.5 m 222
NUBANUSIT BROOK New Hampshire Good 2004 18.0 m 222
MARTINS BROOK New Hampshire Poor 1940 8.5 m 219
BROOK New Hampshire Good 1953 10.5 m 218
GREAT BROOK New Hampshire Fair 1930 7.6 m 216
DAN HOLE RIVER New Hampshire Good 2007 9.3 m 216
NUBANUSIT BROOK New Hampshire Fair 1940 20.4 m 214
PETTYBORO BROOK New Hampshire Good 1985 8.5 m 212
RED WATER BROOK New Hampshire Fair 1925 7.6 m 211
JOHNS RIVER New Hampshire Fair 1948 16.8 m 210
LITTLE SUGAR RIVER New Hampshire Good 1999 8.8 m 210
CARLTON BROOK New Hampshire Fair 2010 6.6 m 210
STONY BROOK New Hampshire Good 2005 11.6 m 209
JOE ENGLISH BROOK New Hampshire Fair 1985 7.6 m 208
BLACK BROOK New Hampshire Good 2008 7.0 m 208

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.