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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
MAPLE FALLS BROOK New Hampshire Poor 1850 8.8 m 208
COHAS BROOK New Hampshire Good 2002 15.5 m 208
LITTLE RIVER New Hampshire Good 1998 13.3 m 208
SPAULDING BROOK New Hampshire Good 1988 14.3 m 208
NH101 New Hampshire Good 1984 52.1 m 208
EXETER RIVER New Hampshire Poor 1986 8.5 m 208
EXETER RIVER New Hampshire Good 2010 6.7 m 208
CSX New Hampshire Good 1920 11.6 m 208
NH101 New Hampshire Good 1995 51.8 m 208
BLACK BROOK New Hampshire Good 2008 7.0 m 208
POWWOW RIVER New Hampshire Poor 1920 9.4 m 208
MID BR PISCATAQUOG RIVER New Hampshire Good 2015 20.7 m 204
JEWETT BROOK New Hampshire Good 2006 8.5 m 202
GREGG LAKE New Hampshire Good 1997 11.0 m 201
PISCATAQUOG RIVER New Hampshire Good 1973 15.2 m 198
OSSIPEE RIVER New Hampshire Fair 1936 42.7 m 192
NH 28 New Hampshire Good 1969 28.0 m 191
PERRY STREAM New Hampshire Poor 1860 23.8 m 191
BLOOD BROOK New Hampshire Good 1999 18.0 m 189
ORE HILL BROOK New Hampshire Good 2003 8.1 m 187
MASCOMA RIVER New Hampshire Fair 1938 19.8 m 186
RECREATION TRAIL(RR BED) New Hampshire Good 1946 16.6 m 186
WHITING BROOK New Hampshire Good 2000 9.1 m 184
EASTMAN BROOK New Hampshire Good 1973 17.4 m 183
JOHNS RIVER New Hampshire Good 1932 8.5 m 182
CONNECTICUT RIVER New Hampshire Fair 1912 44.5 m 180
NH 9 New Hampshire Good 1994 39.6 m 180
CLAY BROOK New Hampshire Good 2002 6.1 m 180
AMMONOOSUC RIVER New Hampshire Fair 1928 33.8 m 178
BEAVER BROOK New Hampshire Good 1974 7.9 m 178
MINNEWAWA BROOK New Hampshire Fair 1922 13.1 m 178
MILL BROOK New Hampshire Fair 1928 7.6 m 177
S BR PISCATAQUOG RIVER New Hampshire Fair 2004 9.1 m 175
MILL BROOK New Hampshire Good 2009 6.7 m 174
FOWLER RIVER New Hampshire Fair 1930 12.5 m 173
BLACKWATER RIVER New Hampshire Fair 1934 11.6 m 173
SMALL BROOK New Hampshire Fair 1927 7.0 m 173
COCKERMOUTH RIVER New Hampshire Good 1930 21.0 m 173
OTTER BROOK New Hampshire Good 1940 11.9 m 168
UPPER AMMONOOSUC RIVER New Hampshire Good 2020 25.8 m 165
NORTH RIVER New Hampshire Good 2012 14.9 m 165
BAKER RIVER New Hampshire Fair 1930 17.4 m 165
COLD RIVER New Hampshire Poor 1869 29.3 m 164
LITTLE RIVER New Hampshire Fair 1957 6.1 m 164
SALMON HOLE BROOK New Hampshire Fair 1920 10.1 m 161
BRANCH RIVER New Hampshire Good 2001 19.8 m 161
POOR FARM BROOK New Hampshire Good 2011 7.8 m 160
COLLINS BROOK New Hampshire Good 2010 7.2 m 159
SOUTH RIVER New Hampshire Good 2021 16.0 m 157
BROOK New Hampshire Good 1984 11.3 m 157

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.