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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
BLACK BROOK New Hampshire Good 1974 7.9 m 9,294
SUNCOOK RIVER BUCK ST New Hampshire Good 2007 134.1 m 9,285
CONNECTICUT RIVER New Hampshire Fair 1969 206.7 m 9,277
OTTERVILLE ROAD New Hampshire Fair 1967 26.8 m 9,237
GEORGES MILLS ROAD New Hampshire Good 1967 27.4 m 9,237
ELLIS RIVER New Hampshire Good 1990 63.1 m 9,216
TIOGA RIVER New Hampshire Good 1968 12.5 m 9,196
ISRAEL RIVER New Hampshire Good 1990 41.5 m 9,175
BEAVER BROOK New Hampshire Good 1934 9.6 m 9,150
SALMON BROOK New Hampshire Fair 1892 11.0 m 9,118
NHRR New Hampshire Poor 1949 44.2 m 9,117
FEE TPK New Hampshire Fair 1993 252.4 m 9,004
FEE TPK SB OFF RAMP New Hampshire Good 1995 53.9 m 9,004
S BRANCH ASHUELOT RIVER New Hampshire Good 1983 10.4 m 8,976
S BRANCH ASHUELOT RIVER New Hampshire Good 1941 11.0 m 8,976
S BR ASHUELOT RIVER New Hampshire Fair 1962 20.4 m 8,976
S BRANCH ASHUELOT RIVER New Hampshire Fair 1962 20.4 m 8,976
S BR ASHUELOT RIVER New Hampshire Fair 1962 20.4 m 8,976
S BRANCH ASHUELOT RIVER New Hampshire Poor 1941 11.0 m 8,976
S BRANCH ASHUELOT RIVER New Hampshire Fair 1983 10.4 m 8,976
ARTIST FALLS BROOK New Hampshire Good 1930 7.6 m 8,975
PLAZA CONNECTOR ROAD New Hampshire Good 2012 16.8 m 8,958
US202 NH 11 WB(RAMP A) New Hampshire Fair 1966 37.8 m 8,957
TURKEY RIVER New Hampshire Good 1987 22.9 m 8,925
MIREY BROOK New Hampshire Fair 1940 24.1 m 8,914
NH 9 NH 10 New Hampshire Good 1977 32.9 m 8,910
SOUCOOK RIVER New Hampshire Good 1988 125.3 m 8,857
MILE HILL ROAD New Hampshire Fair 1967 20.1 m 8,856
NH107 New Hampshire Good 1963 41.5 m 8,834
SMITH RIVER New Hampshire Good 1935 10.5 m 8,809
SP TPK US 4 NH 16 New Hampshire Good 2015 80.9 m 8,800
I-293 NH 3A CSX MERR R New Hampshire Fair 1990 469.4 m 8,778
I-293 NH 3A CSX MERR R New Hampshire Fair 1988 469.4 m 8,778
ASHUELOT RIVER New Hampshire Good 2010 38.4 m 8,754
CSX New Hampshire Poor 1890 19.8 m 8,749
NHRR New Hampshire Good 1933 9.8 m 8,744
PAUGUS BAY New Hampshire Fair 1933 27.4 m 8,744
SOUHEGAN RIVER New Hampshire Good 1969 43.3 m 8,725
US 1 SB New Hampshire Fair 1963 36.9 m 8,642
NHRR(ABD) New Hampshire Good 1963 36.6 m 8,642
HORSE CORNER ROAD New Hampshire Good 1988 21.5 m 8,592
SUNCOOK RIVER New Hampshire Fair 1957 19.5 m 8,548
CONNECTICUT RIVER New Hampshire Poor 1920 103.3 m 8,535
CONNECTICUT RIVER New Hampshire Poor 1920 90.5 m 8,535
SOUCOOK RIVER New Hampshire Fair 1936 54.3 m 8,465
I-393 US 4 US202 New Hampshire Good 1988 92.0 m 8,465
CONNECTICUT RIVER New Hampshire Fair 1910 142.6 m 8,425
CONNECTICUT RIVER NECRR New Hampshire Good 2024 580.8 m 8,409
MASCOMA RIVER New Hampshire Good 1954 20.1 m 8,395
COCHECO RIVER New Hampshire Good 1986 34.7 m 8,305

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.