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 |
|---|---|---|---|---|---|
| CARIBOU CREEK | Idaho | Good | 2018 | 19.8 m | 300 |
| SNOW CREEK | Idaho | Good | 2018 | 19.8 m | 300 |
| MYRTLE CREEK | Idaho | Poor | 1958 | 15.8 m | 300 |
| BALL CREEK | Idaho | Fair | 1990 | 16.2 m | 300 |
| TROUT CREEK | Idaho | Good | 2020 | 17.1 m | 300 |
| TROUT CREEK;N.BRANCH | Idaho | Fair | 1957 | 7.3 m | 300 |
| FISHER CREEK | Idaho | Fair | 2003 | 10.1 m | 300 |
| KOOTENAI R.;COPELAND BR. | Idaho | Fair | 1969 | 189.9 m | 300 |
| TETON RIVER | Idaho | Good | 1976 | 50.6 m | 300 |
| WALDVOGEL CANAL | Idaho | Good | 2007 | 7.6 m | 300 |
| MORA CANAL | Idaho | Fair | 1992 | 12.2 m | 300 |
| BEAR RIVER;BERN BRIDGE | Idaho | Fair | 1973 | 45.7 m | 300 |
| SNAKE RIVER VALLEY CANAL | Idaho | Fair | 1981 | 10.4 m | 300 |
| BLACKFOOT CANAL | Idaho | Fair | 1962 | 16.2 m | 300 |
| S FK PALOUSE R(EDINGTON) | Idaho | Good | 2024 | 13.1 m | 300 |
| DANSKIN CANAL | Idaho | Fair | 1965 | 7.9 m | 300 |
| I 15 NB-SB;OSGOOD RD.GS | Idaho | Fair | 1962 | 71.0 m | 300 |
| ABERDEEN SPRINGFILED CNL | Idaho | Fair | 2004 | 15.5 m | 300 |
| CEDAR POINT CANAL | Idaho | Fair | 1977 | 6.4 m | 300 |
| DESERT DRAIN | Idaho | Fair | 1973 | 7.9 m | 300 |
| IDAHO CANAL | Idaho | Fair | 1968 | 8.2 m | 300 |
| N. FORK BIG LOST RIVER | Idaho | Good | 2016 | 27.7 m | 300 |
| DEER FLAT HIGH LINE CNL | Idaho | Fair | 1988 | 6.7 m | 300 |
| INDIAN CREEK | Idaho | Good | 2001 | 17.7 m | 300 |
| PORTER CANAL | Idaho | Fair | 1965 | 11.1 m | 300 |
| RIVERSIDE CANAL | Idaho | Fair | 1985 | 10.1 m | 300 |
| RIGBY CANAL | Idaho | Fair | 1969 | 6.7 m | 300 |
| I 84 EB-WB;SUBLETT RD IC | Idaho | Fair | 1967 | 95.1 m | 300 |
| BIG WOOD RIVER | Idaho | Good | 2023 | 38.4 m | 300 |
| LITTLE WOOD RIVER | Idaho | Fair | 1930 | 9.8 m | 300 |
| BURGESS CNL;W.RIGBY BR | Idaho | Fair | 1974 | 11.6 m | 300 |
| RIDENBAUGH HIGH LINE CNL | Idaho | Fair | 1987 | 7.6 m | 300 |
| NORTHSIDE MAIN CANAL | Idaho | Fair | 1969 | 9.1 m | 300 |
| B-1 CANAL | Idaho | Good | 2019 | 6.7 m | 300 |
| MAIN NORTHSIDE CANAL | Idaho | Fair | 1974 | 16.5 m | 300 |
| MAIN NORTHSIDE CANAL | Idaho | Fair | 1973 | 15.8 m | 300 |
| SQUAW CREEK | Idaho | Poor | 1960 | 7.6 m | 300 |
| MAIN NORTHSIDE CANAL | Idaho | Fair | 1998 | 38.4 m | 300 |
| C CANAL | Idaho | Fair | 1995 | 7.3 m | 300 |
| GREAT WESTERN CANAL | Idaho | Good | 1960 | 16.8 m | 300 |
| PORTER CREEK | Idaho | Fair | 1988 | 6.7 m | 300 |
| CEDAR DRAW | Idaho | Fair | 1968 | 8.8 m | 300 |
| PARADISE CREEK | Idaho | Good | 2024 | 10.4 m | 300 |
| SHAFER CREEK | Idaho | Good | 1988 | 16.8 m | 290 |
| HIGH LINE CANAL | Idaho | Fair | 1987 | 8.8 m | 290 |
| IDAHO CANAL | Idaho | Poor | 2002 | 12.5 m | 290 |
| BURGESS CANAL | Idaho | Good | 1967 | 8.8 m | 290 |
| BEAR RIVER | Idaho | Fair | 1988 | 61.0 m | 290 |
| GALLOWAY CANAL | Idaho | Fair | 1971 | 7.9 m | 290 |
| GOLDEN GATE CANAL | Idaho | Fair | 1991 | 14.3 m | 290 |
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.