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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
BAKER RIVER New Hampshire Fair 1937 30.5 m 3,418
I-95 New Hampshire Fair 1975 107.0 m 3,412
WINNIPESAUKEE RIVER New Hampshire Fair 1982 56.1 m 3,412
RATTLE RIVER New Hampshire Good 1973 17.4 m 3,395
GRIFFIN BROOK New Hampshire Good 2010 7.3 m 3,391
NUBANUSIT BROOK New Hampshire Fair 2003 12.2 m 3,391
LITTLE HARBOR New Hampshire Poor 1942 77.3 m 3,359
PISCATAQUOG RIVER New Hampshire Fair 1940 21.0 m 3,359
PEABODY RIVER New Hampshire Good 1960 53.9 m 3,350
PEABODY RIVER New Hampshire Fair 1960 7.0 m 3,350
ELLIS RIVER New Hampshire Fair 1963 28.7 m 3,350
NINETEEN MILE BROOK New Hampshire Fair 1954 10.7 m 3,350
CSX New Hampshire Fair 1970 132.9 m 3,341
W BR SILVER RIVER New Hampshire Good 1979 10.4 m 3,330
LAMPREY RIVER New Hampshire Good 1999 17.4 m 3,323
NEWFOUND RIVER New Hampshire Fair 1944 21.0 m 3,318
ASHUELOT RIVER New Hampshire Fair 1935 30.2 m 3,308
PEMIGEWASSET RIVER New Hampshire Fair 1937 19.5 m 3,301
AMMONOOSUC RIVER New Hampshire Good 1983 122.2 m 3,265
EXETER RIVER New Hampshire Poor 1978 24.1 m 3,259
LUCY BROOK New Hampshire Fair 1976 14.6 m 3,233
ISRAEL RIVER New Hampshire Good 1984 27.7 m 3,231
CHERRY MILL BROOK New Hampshire Good 1984 11.0 m 3,231
NISSITISSIT RIVER New Hampshire Fair 1932 17.4 m 3,176
LITTLE RIVER New Hampshire Good 1990 25.6 m 3,173
BLACK BROOK New Hampshire Good 1989 12.2 m 3,159
LYMAN BROOK New Hampshire Fair 1952 15.8 m 3,145
SOUCOOK RIVER New Hampshire Fair 1926 12.8 m 3,138
BLACK BROOK New Hampshire Good 1992 8.5 m 3,131
CARROLL STREAM New Hampshire Good 1957 6.7 m 3,116
BABOOSIC BROOK New Hampshire Good 2013 20.7 m 3,115
NH101 New Hampshire Good 1992 100.6 m 3,113
HANCOCK BROOK New Hampshire Fair 1938 20.7 m 3,107
E BR PEMIGEWASSET RIVER New Hampshire Fair 1938 60.7 m 3,107
HANCOCK BROOK New Hampshire Fair 1942 9.1 m 3,107
NORTH BRANCH RIVER New Hampshire Fair 1932 7.0 m 3,103
BEAN BROOK New Hampshire Fair 1937 7.0 m 3,103
CANAL New Hampshire Fair 1953 7.0 m 3,101
MILL BROOK New Hampshire Fair 1930 7.3 m 3,081
PAWTUCKAWAY RIVER New Hampshire Fair 1942 7.0 m 3,075
BEARDS BROOK New Hampshire Fair 1951 23.8 m 3,043
PISCATAQUA ESTUARY New Hampshire Fair 1955 165.8 m 3,041
PISCATAQUA ESTUARY New Hampshire Fair 1955 147.5 m 3,041
SL&ARR New Hampshire Fair 1959 20.7 m 3,019
STRATFORD BOG BROOK New Hampshire Good 2001 15.6 m 3,019
AVALANCHE BROOK New Hampshire Good 1960 10.7 m 3,004
SACO RIVER New Hampshire Fair 1949 11.9 m 3,004
SACO RIVER New Hampshire Good 1976 32.0 m 3,004
BEMIS BROOK New Hampshire Good 1950 8.3 m 3,004
BEAVER BROOK New Hampshire Good 2006 18.0 m 2,964

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.