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.
| Bridge | Location | Condition | Year Built | Length | ADT |
|---|---|---|---|---|---|
| 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.