Browse Bridge Database

4,646 bridges in the FHWA National Bridge Inventory in Idaho.

National Bridge Inventory Database

Browse 4,646 bridges from the Federal Highway Administration National Bridge Inventory. Filter by state, condition rating, or search by name and location.

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BridgeLocationConditionYear BuiltLengthADT
FARMERS COOP CANAL Idaho Fair 1964 43.9 m 11,000
BOISE RIVER(STAR BRIDGE) Idaho Fair 1982 115.2 m 11,000
B-4 CANAL Idaho Fair 1966 45.7 m 11,000
FIFTEEN MILE CREEK Idaho Good 2004 28.0 m 11,000
JUNIPER RD;GS NO.1 Idaho Fair 1968 7.3 m 11,000
US 20;N.MOUNTAIN HOME IC Idaho Fair 1971 28.3 m 10,750
US 20;N.MOUNTAIN HOME IC Idaho Fair 1971 28.3 m 10,750
WINDY GLENN RD GS Idaho Good 1966 7.9 m 10,750
WINDY GLENN RD GS Idaho Good 1966 7.9 m 10,750
S.FK.COEUR DALENE RIVER Idaho Fair 1962 18.6 m 10,500
BOISE RIVER Idaho Fair 2001 183.2 m 10,500
PAYETTE RIVER;EMMETT BR. Idaho Fair 1971 103.6 m 10,500
US 20;SALEM RD IC Idaho Fair 1982 81.7 m 10,500
ELIJA DRAIN Idaho Fair 1970 18.3 m 10,500
CANYON CREEK Idaho Fair 1940 11.3 m 10,500
S.FK.COEUR DALENE RIVER Idaho Fair 1962 19.5 m 10,500
McLEOD WAY Idaho Good 2024 20.1 m 10,500
UPRR;KINGS RD OP Idaho Good 2006 109.7 m 10,500
FIVEMILE CREEK FEEDER Idaho Good 2024 8.4 m 10,500
FIVEMILE CREEK Idaho Good 2024 7.7 m 10,500
S.FK.FALL RIVER CANAL Idaho Fair 1973 23.2 m 10,500
I 84B;UPRR;HEYBURN IC Idaho Fair 1961 206.7 m 10,500
I 84B;UPRR;HEYBURN IC Idaho Fair 1961 206.7 m 10,500
RIDENBAUGH CANAL Idaho Fair 1964 14.3 m 10,500
S.FK.COEUR DALENE RIVER Idaho Fair 1962 19.5 m 10,500
I 184B WB-EB;FAIRVIEW RP Idaho Fair 1968 71.6 m 10,500
SMA 5697;SOUTH VALLEY RD Idaho Good 2015 56.1 m 10,000
COUGAR CREEK Idaho Fair 1985 22.3 m 10,000
S.1ST AVE;UPRR;BENTON OP Idaho Fair 1967 272.5 m 10,000
I 15B;S.POCATELLO IC Idaho Fair 1965 85.6 m 10,000
I 15B;S.POCATELLO IC Idaho Fair 1965 85.6 m 10,000
RIDENBAUGH CANAL Idaho Good 1984 8.2 m 10,000
LOW LINE CANAL Idaho Fair 1974 22.6 m 10,000
CALKINS LATERAL Idaho Good 2016 7.3 m 10,000
S.FK.TETON RIVER Idaho Fair 1980 54.6 m 10,000
S.FK.TETON RIVER Idaho Fair 1980 54.6 m 10,000
ALKALI CR;ALKALI CR GS Idaho Fair 1978 57.0 m 10,000
ALKALI CR;ALKALI CR GS Idaho Fair 1978 57.0 m 10,000
SMA 5697;SOUTH VALLEY RD Idaho Good 2015 56.1 m 10,000
I 84B;BANNOCK IC Idaho Fair 1979 39.9 m 10,000
I 84B;BANNOCK IC Idaho Good 1979 39.9 m 10,000
I 84 EB-WB;US 95 IC Idaho Fair 1960 96.3 m 9,900
RIDENBAUGH CANAL Idaho Fair 1961 7.0 m 9,900
I 86 EB-WB; CHUBBUCK IC Idaho Good 2013 52.4 m 9,750
A CANAL Idaho Fair 1961 71.6 m 9,750
COLD SPRINGS RD.& CR.IC Idaho Fair 1973 58.5 m 9,750
COLD SPRINGS RD.& CR.IC Idaho Fair 1973 58.5 m 9,750
A CANAL Idaho Fair 1961 71.6 m 9,750
I 86 EB-WB; CHUBBUCK IC Idaho Good 2013 52.4 m 9,750
SNAKE RIVER Idaho Fair 2017 306.0 m 9,750

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.