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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
COLD RIVER New Hampshire Fair 1929 11.9 m 105
DODGE BROOK New Hampshire Good 1933 9.1 m 105
POND BROOK New Hampshire Fair 1930 12.2 m 105
ISRAEL RIVER New Hampshire Good 1986 15.2 m 105
NEWFOUND RIVER New Hampshire Good 1949 24.7 m 103
SOKOKIS BROOK New Hampshire Fair 1934 6.1 m 102
ASHUELOT RIVER New Hampshire Fair 1969 14.0 m 102
BURNT KNOLL New Hampshire Poor 1975 7.3 m 100
DECEPTION BROOK New Hampshire Fair 1949 7.9 m 100
EAST BRANCH SACO RIVER New Hampshire Good 2014 19.2 m 100
NELSON BROOK New Hampshire Good 2021 8.2 m 100
PEMIGEWASSET RIVER New Hampshire Good 1999 8.5 m 100
MILL BROOK New Hampshire Fair 1970 7.3 m 100
WARNER RIVER New Hampshire Fair 1853 23.2 m 100
AMMONOOSUC RIVER New Hampshire Fair 2006 31.9 m 100
E.BR. BAKER RIVER New Hampshire Fair 1976 7.3 m 100
TUNNEL STREAM SALE New Hampshire Fair 2006 24.4 m 99
INDIGO SALE New Hampshire Fair 2008 12.2 m 99
W.BR MAD RIVER New Hampshire Good 1998 13.7 m 99
SCARFACE BROOK New Hampshire Good 2011 12.8 m 99
TUNNEL STREAM SALE New Hampshire Fair 2015 12.2 m 99
TUNNEL STREAM SALE New Hampshire Fair 2006 24.4 m 99
INDIGO SALE New Hampshire Fair 2015 12.2 m 99
SO. BR. GALE RIVER New Hampshire Good 2011 14.3 m 99
TRIB. HUBBARD BROOK New Hampshire Fair 1966 7.3 m 99
JACKMAN BROOK New Hampshire Fair 1993 10.2 m 99
COLD BROOK New Hampshire Good 2006 7.9 m 99
TRIB. TO AMMONOOSUC New Hampshire Fair 1949 7.0 m 99
WITCHER BROOK New Hampshire Fair 1977 9.1 m 99
CLAYBANK BROOK New Hampshire Fair 1974 7.9 m 99
BOG BROOK New Hampshire Fair 1977 11.0 m 99
W.BR.AMMONOOSUC RIVER New Hampshire Fair 2005 14.0 m 99
KEENAN BROOK New Hampshire Fair 1964 9.8 m 99
CANAL INLET New Hampshire Good 1988 15.2 m 98
MELVIN RIVER New Hampshire Good 1936 12.5 m 98
HOYT BROOK New Hampshire Good 2009 13.0 m 96
W BR WARNER RIVER New Hampshire Good 1854 19.4 m 96
WARNER RIVER New Hampshire Good 2016 26.2 m 96
BLOW-ME-DOWN BROOK New Hampshire Good 1996 16.8 m 96
BEARDS BROOK New Hampshire Fair 1970 7.5 m 96
BEARDS BROOK New Hampshire Fair 1900 9.8 m 96
BLACK BROOK New Hampshire Good 2013 7.7 m 96
RED HILL RIVER New Hampshire Good 2018 12.8 m 96
BEARCAMP RIVER New Hampshire Good 2020 11.6 m 96
POND BROOK New Hampshire Good 1994 10.1 m 96
BEARCAMP RIVER New Hampshire Poor 1950 10.1 m 96
COLD RIVER New Hampshire Good 2018 16.0 m 96
BEARCAMP RIVER New Hampshire Fair 1960 10.7 m 96
WHITEFACE RIVER New Hampshire Fair 1953 14.6 m 96
BEARCAMP RIVER New Hampshire Good 1900 14.3 m 96

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.