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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
S BRANCH ASHUELOT RIVER New Hampshire Good 1999 13.1 m 823
ASHUELOT RIVER New Hampshire Good 1864 52.8 m 821
CONNECTICUT RIVER New Hampshire Fair 1984 95.9 m 815
SWIFT RIVER New Hampshire Fair 1973 22.6 m 812
CONTOOCOOK RIVER New Hampshire Good 2010 36.0 m 808
WARNER RIVER New Hampshire Fair 1967 37.8 m 799
BROOK New Hampshire Good 1988 26.5 m 798
SQUAM RIVER New Hampshire Fair 1941 10.4 m 796
PULPIT BROOK New Hampshire Good 2018 13.7 m 794
ASHUELOT RIVER New Hampshire Fair 1862 43.6 m 792
SALMON FALLS RIVER New Hampshire Fair 1962 8.5 m 789
BEAVER BROOK New Hampshire Good 1995 10.4 m 783
CSX New Hampshire Fair 1900 19.2 m 782
OLIVERIAN BROOK New Hampshire Good 1999 25.4 m 776
OLIVERIAN BROOK New Hampshire Good 1975 25.9 m 776
BEARCAMP RIVER New Hampshire Good 1972 64.0 m 775
PEMIGEWASSET RIVER New Hampshire Good 1973 127.1 m 775
ELA RIVER New Hampshire Good 1998 14.7 m 770
COCHECO RIVER New Hampshire Poor 1926 11.9 m 770
LAMPREY RIVER New Hampshire Fair 1986 25.9 m 762
BEAVER BROOK New Hampshire Fair 1935 14.0 m 762
FEE TPK New Hampshire Fair 1976 81.7 m 761
DAN HOLE RIVER New Hampshire Good 1976 8.5 m 755
ISRAEL RIVER New Hampshire Fair 1862 28.7 m 750
EXETER RIVER New Hampshire Good 1987 17.4 m 745
LITTLE RIVER New Hampshire Good 1959 7.9 m 735
I-93 New Hampshire Good 1963 87.5 m 728
AMMONOOSUC RIVER New Hampshire Fair 1980 51.2 m 728
BELA BROOK New Hampshire Good 2021 14.3 m 727
ISRAEL RIVER New Hampshire Fair 1973 25.6 m 724
PRISCILLA BROOK New Hampshire Good 1967 8.2 m 724
CONNECTICUT RIVER New Hampshire Good 2006 26.4 m 723
CLARK BROOK New Hampshire Fair 1983 7.6 m 723
BROOK New Hampshire Fair 1900 9.1 m 721
BROOK New Hampshire Good 1900 8.5 m 721
BEARCAMP RIVER New Hampshire Good 1927 11.9 m 716
STOCKER POND OUTLET New Hampshire Good 1934 8.4 m 715
BOG BROOK New Hampshire Good 2003 9.2 m 714
EXETER RIVER New Hampshire Good 1988 9.1 m 713
CONTOOCOOK RIVER New Hampshire Poor 1933 68.3 m 712
MILL BROOK New Hampshire Good 1974 9.1 m 708
MASCOMA RIVER New Hampshire Good 1936 11.7 m 705
PEMIGEWASSET RIVER New Hampshire Good 2009 75.6 m 700
EASTMAN BROOK New Hampshire Good 1965 7.9 m 693
PEMIGEWASSET RIVER New Hampshire Fair 1976 85.3 m 682
PISCATAQUOG RIVER New Hampshire Good 1962 17.4 m 682
PEMIGEWASSET RIVER New Hampshire Good 1976 97.5 m 682
PEMIGEWASSET RIVER New Hampshire Good 1976 25.9 m 682
PEMIGEWASSET RIVER New Hampshire Poor 1939 55.8 m 674
GUNSTOCK RIVER New Hampshire Good 1927 14.1 m 672

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.