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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
ROCKY BRANCH RIVER New Hampshire Good 1990 51.2 m 6,063
ELLIS RIVER New Hampshire Fair 1998 46.9 m 6,063
ASHUELOT RIVER New Hampshire Fair 1979 27.4 m 6,042
SUGAR RIVER New Hampshire Good 1957 12.5 m 5,968
ISINGLASS RIVER New Hampshire Good 1934 16.7 m 5,938
N BRANCH RIVER New Hampshire Good 1988 34.1 m 5,929
HANSON BROOK New Hampshire Good 1985 27.4 m 5,902
COCHECO RIVER New Hampshire Good 1991 35.1 m 5,899
FRESH CREEK New Hampshire Fair 1948 6.4 m 5,853
MOOSE BROOK New Hampshire Fair 1959 7.6 m 5,847
NORTH MILL POND New Hampshire Poor 1940 7.6 m 5,829
TRAIL PEMIGEWASSET RIVER New Hampshire Fair 1985 35.1 m 5,809
HARVARD BROOK New Hampshire Good 1985 37.5 m 5,796
TRAIL PEMIGEWASSET RIVER New Hampshire Fair 1986 38.7 m 5,790
CLARKS RR PEMIGEWASSET R New Hampshire Good 1973 70.4 m 5,785
US 3 New Hampshire Good 1973 38.4 m 5,785
CONTOOCOOK RIVER New Hampshire Poor 1942 53.6 m 5,773
COHAS BROOK New Hampshire Fair 1937 6.7 m 5,769
WIECZOREK DR RAMP New Hampshire Good 2011 45.1 m 5,763
PINE RIVER New Hampshire Good 1963 38.2 m 5,729
PAUGUS BAY New Hampshire Good 2003 75.7 m 5,717
CSX New Hampshire Good 2006 33.5 m 5,716
PISCATAQUOG (NORTH BR) New Hampshire Fair 1915 27.4 m 5,707
PISCATAQUOG (SOUTH BR) New Hampshire Good 1991 39.6 m 5,707
NEWFOUND RIVER New Hampshire Good 1999 19.4 m 5,690
NEWFOUND RIVER New Hampshire Poor 1924 18.3 m 5,690
I-95 NB RAMP New Hampshire Good 1972 35.4 m 5,680
I-95 NB New Hampshire Fair 1972 47.5 m 5,680
NHNCRR New Hampshire Good 1954 46.0 m 5,656
NORTH BRANCH RIVER New Hampshire Fair 1961 7.0 m 5,654
LYMAN BROOK New Hampshire Fair 1935 8.5 m 5,629
BLACKWATER RIVER New Hampshire Good 1959 37.8 m 5,615
NHRR(ABD) New Hampshire Good 2010 6.8 m 5,615
SOUHEGAN RIVER BYP HIST New Hampshire Good 2015 50.9 m 5,564
NISSITISSIT RIVER New Hampshire Fair 1947 9.4 m 5,547
WINNIPESAUKEE RIVER New Hampshire Good 1980 35.1 m 5,542
CSX New Hampshire Fair 1907 8.5 m 5,525
COTTAGE STREET New Hampshire Fair 1959 19.8 m 5,513
I-293 NH 3A FEE TPK New Hampshire Good 2016 75.0 m 5,504
WINNIPESAUKEE RIVER New Hampshire Good 1981 46.0 m 5,494
US202 NH 9 New Hampshire Fair 1974 49.1 m 5,492
US 3 New Hampshire Good 1985 39.9 m 5,456
CLARKS RR PEMIGEWASSET R New Hampshire Good 1981 70.1 m 5,456
CONNECTOR ROAD New Hampshire Good 1973 21.9 m 5,456
NH 16 SP TPK New Hampshire Good 1957 54.9 m 5,442
COCHECO RIVER New Hampshire Good 1976 42.7 m 5,430
UPPER AMMONOOSUC RIVER New Hampshire Good 1995 71.6 m 5,412
HANSON BROOK New Hampshire Good 1984 24.1 m 5,410
I-93(RAMP 3S-F) New Hampshire Good 1986 31.6 m 5,410
PINE BEND BROOK New Hampshire Good 1948 6.7 m 5,352

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.