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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
SOUHEGAN RIVER New Hampshire Fair 1937 17.1 m 2,721
ALBANY BROOK New Hampshire Good 1928 12.2 m 2,713
DOWNES BROOK New Hampshire Fair 1963 8.5 m 2,710
OLIVERIAN BROOK New Hampshire Good 1963 13.6 m 2,710
BLOODS BROOK New Hampshire Fair 1934 11.0 m 2,707
PURGATORY BROOK New Hampshire Good 1978 12.2 m 2,702
JEWETT BROOK New Hampshire Good 1989 8.2 m 2,699
NH101 New Hampshire Good 1995 51.2 m 2,693
GUNSTOCK RIVER New Hampshire Poor 1941 7.6 m 2,690
GUNSTOCK RIVER New Hampshire Fair 1931 7.9 m 2,690
LAMPREY RIVER OVERFLOW New Hampshire Good 2004 7.8 m 2,689
LAMPREY RIVER New Hampshire Good 2004 41.3 m 2,689
SUCKER BROOK New Hampshire Good 1930 10.7 m 2,682
NHRR(ABD) New Hampshire Poor 1929 54.6 m 2,674
SUCKER BROOK New Hampshire Poor 1929 8.5 m 2,674
SUCKER BROOK New Hampshire Poor 1929 8.5 m 2,674
GREAT BROOK New Hampshire Good 1944 9.4 m 2,671
GREAT BROOK New Hampshire Fair 1935 12.2 m 2,671
PEMIGEWASSET RIVER NHRR New Hampshire Fair 1937 243.8 m 2,666
NEEDLE SHOP BROOK New Hampshire Fair 1940 7.9 m 2,664
NH 16 SP TPK New Hampshire Good 1957 73.2 m 2,660
GREAT BROOK New Hampshire Fair 1930 14.9 m 2,653
BLACKWATER RIVER New Hampshire Poor 1933 22.9 m 2,652
KIMBALL BROOK New Hampshire Good 1956 7.6 m 2,647
I-93 New Hampshire Fair 1959 85.6 m 2,646
LAMPREY RIVER New Hampshire Fair 1932 19.8 m 2,642
COAL HILL RD GALE RIVER New Hampshire Fair 1959 47.9 m 2,638
INDIAN RIVER New Hampshire Fair 1942 12.5 m 2,636
NH 18 NH116 New Hampshire Fair 1959 19.8 m 2,632
INDIAN CREEK New Hampshire Fair 1959 9.4 m 2,632
I-93 New Hampshire Fair 1976 78.0 m 2,620
CONTOOCOOK RIVER New Hampshire Fair 1981 82.3 m 2,615
MERRYMEETING RIVER New Hampshire Fair 1940 8.2 m 2,614
COAL HILL RD GALE RIVER New Hampshire Fair 1973 58.2 m 2,612
ASH BROOK New Hampshire Poor 1970 9.1 m 2,610
WINNIPESAUKEE RIVER New Hampshire Good 1988 57.0 m 2,602
NH101 New Hampshire Good 1998 61.9 m 2,600
BEAVER BROOK New Hampshire Good 2001 6.1 m 2,595
COHAS BROOK New Hampshire Good 1984 6.4 m 2,576
COHAS BROOK New Hampshire Good 1900 14.3 m 2,560
MILL OUTLET New Hampshire Good 1988 21.9 m 2,533
CANAL INLET New Hampshire Fair 1975 23.2 m 2,533
BRANCH RIVER New Hampshire Good 1932 9.8 m 2,529
PISCASSIC RIVER New Hampshire Fair 1946 7.0 m 2,525
LITTLE RIVER New Hampshire Fair 1934 9.8 m 2,520
NINETEEN MILE BAY New Hampshire Good 1993 8.5 m 2,518
OTTER BROOK New Hampshire Fair 1968 7.6 m 2,518
BEAVER BROOK New Hampshire Fair 1970 6.1 m 2,515
SHANNON BROOK New Hampshire Fair 1929 7.6 m 2,514
NHRR(ABD) New Hampshire Fair 1937 31.7 m 2,503

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.