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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
SO BR SUGAR RIVER New Hampshire Good 2003 22.6 m 963
CONNOR BROOK New Hampshire Fair 1934 7.0 m 961
NISSITISSIT RIVER New Hampshire Fair 1946 13.4 m 959
GREAT BROOK New Hampshire Fair 1949 16.8 m 957
AMEY BROOK New Hampshire Fair 1935 7.3 m 951
JOHNS RIVER New Hampshire Good 1997 25.9 m 946
BROOK New Hampshire Fair 1951 8.1 m 943
CRYSTAL LAKE OUTLET New Hampshire Good 1982 13.7 m 942
LITTLE RIVER New Hampshire Good 2009 6.6 m 940
STINSON BROOK New Hampshire Good 1937 14.0 m 938
MOHAWK RIVER New Hampshire Good 2007 27.9 m 926
MOHAWK RIVER New Hampshire Good 2007 13.0 m 926
RECREATION TRAIL New Hampshire Good 2017 9.1 m 926
CONNECTICUT RIVER New Hampshire Fair 1953 49.8 m 916
BEECH RIVER New Hampshire Good 1928 8.2 m 910
NH101 New Hampshire Good 1981 72.8 m 897
SUGAR RIVER New Hampshire Fair 1979 29.3 m 890
KINGS BROOK New Hampshire Good 2007 7.7 m 887
GUNSTOCK RIVER New Hampshire Good 1900 7.3 m 886
GREAT BROOK New Hampshire Fair 1955 9.4 m 883
WILD AMMONOOSUC RIVER New Hampshire Fair 1927 12.8 m 882
SALMON HOLE BROOK New Hampshire Good 1969 10.7 m 882
WHICHIER BROOK New Hampshire Good 1984 10.1 m 872
BELMONT RIVER New Hampshire Good 1988 13.7 m 872
MAD RIVER New Hampshire Fair 1900 14.9 m 871
CONNECTICUT RIVER New Hampshire Good 1997 180.1 m 870
AMMONOOSUC RIVER New Hampshire Good 2000 53.3 m 869
STINSON BROOK New Hampshire Good 1948 24.2 m 857
STINSON BROOK New Hampshire Fair 1955 20.7 m 857
STINSON BROOK New Hampshire Fair 1927 8.8 m 857
TRIBUTARY G New Hampshire Good 2006 7.0 m 856
BLAKES BROOK New Hampshire Good 2008 11.0 m 852
SOUHEGAN RIVER New Hampshire Fair 1993 38.1 m 851
CLEAR STREAM New Hampshire Good 1997 35.4 m 850
FORREST BROOK New Hampshire Fair 1958 7.9 m 850
NORTH RIVER New Hampshire Fair 1963 6.7 m 843
CONVERSEVILLE BROOK New Hampshire Good 2021 11.6 m 840
NH101 New Hampshire Good 1985 72.7 m 838
LAMPREY RIVER New Hampshire Good 1990 22.9 m 838
TANNERY BROOK New Hampshire Good 1984 7.0 m 838
HAM BRANCH New Hampshire Fair 1933 8.2 m 836
BROOK New Hampshire Good 2021 7.4 m 836
GOOSE POND BROOK New Hampshire Good 1991 8.8 m 829
GOOSE POND BROOK New Hampshire Good 2014 13.4 m 829
ASHUELOT RIVER New Hampshire Fair 1940 17.4 m 829
STURTEVANT BROOK New Hampshire Good 2012 6.2 m 829
WHITE BROOK New Hampshire Poor 1940 7.0 m 826
BRACKETT BROOK New Hampshire Poor 1929 12.2 m 826
BAKER POND BROOK New Hampshire Poor 1929 7.3 m 826
BOG BROOK New Hampshire Good 1927 9.1 m 823

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.