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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
BEECH RIVER New Hampshire Good 1932 15.5 m 1,917
S BRANCH SUGAR RIVER New Hampshire Good 1928 10.2 m 1,915
EXETER RIVER New Hampshire Good 1998 14.6 m 1,906
JERICHO BROOK New Hampshire Good 1954 7.6 m 1,897
SALMON FALLS RIVER New Hampshire Fair 1950 31.7 m 1,881
WINNICUT RIVER New Hampshire Fair 1931 20.4 m 1,870
ABBOTT BROOK New Hampshire Good 1964 6.7 m 1,869
PISCATAQUOG RIVER New Hampshire Poor 1940 35.7 m 1,866
SOUHEGAN RIVER New Hampshire Poor 1938 52.7 m 1,866
BEAVER BROOK New Hampshire Good 1986 10.4 m 1,865
TROUT BROOK New Hampshire Fair 1969 8.5 m 1,862
PIKE BROOK New Hampshire Good 1974 6.2 m 1,862
NHRR(ABD) New Hampshire Good 1941 8.5 m 1,858
TEWKSBURY POND OUTLET New Hampshire Fair 1928 7.0 m 1,858
TEWKSBURY POND OUTLET New Hampshire Good 2000 17.2 m 1,858
EXETER RIVER New Hampshire Poor 1932 9.4 m 1,854
SUGAR RIVER New Hampshire Fair 1983 17.7 m 1,833
BISHOP BROOK New Hampshire Good 1924 8.5 m 1,820
GREAT BROOK New Hampshire Good 1992 13.7 m 1,817
I-95 New Hampshire Fair 1975 80.2 m 1,808
CONTOOCOOK RIVER New Hampshire Good 1905 12.8 m 1,804
TOWN LINE BROOK New Hampshire Good 1939 19.2 m 1,802
JONES BROOK New Hampshire Good 1932 8.5 m 1,801
POLICY BROOK New Hampshire Good 1967 8.1 m 1,800
POLICY BROOK New Hampshire Good 1967 8.1 m 1,800
BLACK BROOK New Hampshire Fair 1934 7.3 m 1,793
AMMONOOSUC RIVER New Hampshire Fair 1937 18.9 m 1,793
WENDELL BROOK New Hampshire Good 1998 7.9 m 1,792
NUBANUSIT BROOK New Hampshire Good 1970 7.3 m 1,777
COCHECO RIVER New Hampshire Poor 1953 19.5 m 1,773
US 4 New Hampshire Good 1966 65.8 m 1,751
GILES BROOK New Hampshire Fair 1934 7.3 m 1,745
MASCOMA RIVER New Hampshire Fair 1991 23.2 m 1,736
STONY BROOK New Hampshire Good 1997 12.2 m 1,736
BAKER RIVER New Hampshire Fair 1947 23.5 m 1,732
BERRY BROOK New Hampshire Good 1950 7.6 m 1,732
BLODGETT BROOK New Hampshire Fair 1960 9.3 m 1,732
TUCKER BROOK New Hampshire Fair 1988 6.7 m 1,730
SALMON FALLS RIVER New Hampshire Fair 1982 36.6 m 1,727
GALE RIVER New Hampshire Good 1974 31.1 m 1,727
PURGATORY BROOK New Hampshire Fair 1970 7.0 m 1,716
POWWOW RIVER New Hampshire Good 1926 7.8 m 1,716
I-89 New Hampshire Fair 1959 82.9 m 1,716
BEE HOLE BROOK New Hampshire Good 2006 6.6 m 1,714
LAKE WINNIPESAUKEE New Hampshire Fair 1981 51.5 m 1,708
MILL BROOK New Hampshire Fair 1948 8.2 m 1,707
HYDRO CANAL New Hampshire Good 1984 9.8 m 1,706
CONTOOCOOK RIVER New Hampshire Fair 1934 27.1 m 1,693
NORTH BRANCH BROOK New Hampshire Fair 1954 18.3 m 1,693
COLLEGE BROOK New Hampshire Good 1998 7.0 m 1,687

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.