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 |
|---|---|---|---|---|---|
| INDIAN CREEK | Idaho | Fair | 1960 | 7.9 m | 15,250 |
| TEXAS SLOUGH | Idaho | Good | 1981 | 19.5 m | 15,250 |
| SNAKE RIVER;LORENZO BR. | Idaho | Fair | 1974 | 195.7 m | 15,250 |
| SNAKE RIVER;LORENZO BR. | Idaho | Fair | 1980 | 194.8 m | 15,250 |
| TEXAS SLOUGH | Idaho | Good | 1981 | 19.5 m | 15,250 |
| INDIAN CREEK | Idaho | Fair | 1953 | 7.9 m | 15,250 |
| THORTON IC | Idaho | Good | 2016 | 29.9 m | 15,250 |
| CEDAR CREEK | Idaho | Fair | 1988 | 6.4 m | 15,000 |
| CEDAR CREEK | Idaho | Fair | 1988 | 6.4 m | 15,000 |
| ROCK CREEK | Idaho | Fair | 2011 | 151.8 m | 15,000 |
| I 84 EB-WB;S.JEROME IC | Idaho | Fair | 1966 | 143.3 m | 15,000 |
| KUNA RD; BLACKS CREEK RD | Idaho | Fair | 2020 | 34.7 m | 15,000 |
| KUNA RD; BLACKS CREEK RD | Idaho | Good | 2020 | 34.7 m | 15,000 |
| SETTLERS CANAL | Idaho | Fair | 2000 | 34.1 m | 15,000 |
| CEDAR CREEK | Idaho | Fair | 1988 | 7.6 m | 15,000 |
| FOURTH OF JULY CREEK | Idaho | Fair | 1958 | 7.0 m | 15,000 |
| NEW YORK CANAL | Idaho | Fair | 1990 | 39.3 m | 15,000 |
| SIDEHILL CANAL | Idaho | Fair | 1962 | 9.8 m | 15,000 |
| SIDEHILL CANAL | Idaho | Good | 1962 | 9.8 m | 15,000 |
| SNAKE RIVER;HEYBURN BR. | Idaho | Fair | 1955 | 400.2 m | 15,000 |
| BIG WOOD RIVER | Idaho | Good | 2002 | 56.1 m | 14,500 |
| BURLINGTON NORTHERN RR | Idaho | Fair | 2014 | 62.5 m | 14,500 |
| SAND CREEK | Idaho | Fair | 1957 | 21.3 m | 14,500 |
| 400 SOUTH RD GS 2 | Idaho | Good | 2024 | 31.5 m | 14,500 |
| 400 SOUTH RD GS 2 | Idaho | Good | 2024 | 31.5 m | 14,500 |
| US 93;W. TWIN FALLS IC | Idaho | Fair | 2013 | 49.1 m | 14,500 |
| US 93;W.TWIN FALLS IC | Idaho | Fair | 2003 | 49.1 m | 14,500 |
| BIG WOOD RIVER | Idaho | Fair | 2017 | 70.4 m | 14,500 |
| FIVE MILE CREEK | Idaho | Fair | 1991 | 7.0 m | 14,500 |
| RIDENBAUGH CANAL;COLE GS | Idaho | Good | 1968 | 9.8 m | 14,500 |
| TEED LATERAL CANAL | Idaho | Good | 1990 | 6.7 m | 14,500 |
| MASON DRAIN DITCH | Idaho | Fair | 1947 | 7.6 m | 14,500 |
| CANYON CREEK | Idaho | Fair | 1959 | 11.0 m | 14,250 |
| PRIVATE RD.;MACHINE PASS | Idaho | Fair | 1959 | 7.3 m | 14,250 |
| PRIVATE RD.;MACHINE PASS | Idaho | Fair | 1959 | 7.3 m | 14,250 |
| PRIVATE RD.;MACHINE PASS | Idaho | Good | 1959 | 7.3 m | 14,250 |
| PRIVATE RD.;MACHINE PASS | Idaho | Good | 1959 | 7.3 m | 14,250 |
| FORT HALL MAIN CANAL | Idaho | Fair | 1960 | 34.1 m | 14,250 |
| FORT HALL MAIN CANAL | Idaho | Fair | 1960 | 34.1 m | 14,250 |
| ABERDEEN SPRINGFIELD CNL | Idaho | Fair | 1962 | 36.6 m | 14,250 |
| ABERDEEN SPRINGFIELD CNL | Idaho | Fair | 1962 | 36.6 m | 14,250 |
| PEOPLES CANAL | Idaho | Fair | 1962 | 24.4 m | 14,250 |
| PEOPLES CANAL | Idaho | Fair | 1962 | 24.4 m | 14,250 |
| LAVA SIDE CANAL | Idaho | Good | 1962 | 6.1 m | 14,250 |
| LAVA SIDE CANAL | Idaho | Good | 1962 | 6.1 m | 14,250 |
| GREAT WESTERN CANAL | Idaho | Good | 1962 | 7.0 m | 14,250 |
| GREAT WESTERN CANAL | Idaho | Good | 1962 | 7.0 m | 14,250 |
| SQUAW CREEK | Idaho | Fair | 1960 | 12.8 m | 14,250 |
| CANYON CREEK | Idaho | Good | 1959 | 11.0 m | 14,250 |
| SQUAW CREEK | Idaho | Fair | 1953 | 12.8 m | 14,250 |
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.