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 |
|---|---|---|---|---|---|
| LOW LINE CANAL | Idaho | Fair | 1962 | 8.8 m | 2,700 |
| LATERAL A CANAL | Idaho | Good | 2019 | 7.0 m | 2,700 |
| UPPER W.BRANCH PRIEST R. | Idaho | Fair | 1937 | 90.2 m | 2,700 |
| BOISE RIVER | Idaho | Fair | 1975 | 60.4 m | 2,700 |
| PORTNEUF RIVER | Idaho | Good | 1968 | 29.3 m | 2,700 |
| MUD CREEK | Idaho | Good | 2017 | 19.8 m | 2,700 |
| REXBURG CANAL | Idaho | Fair | 1976 | 7.0 m | 2,690 |
| NOBLE CANAL | Idaho | Fair | 1977 | 6.7 m | 2,610 |
| IDAHO CANAL | Idaho | Fair | 1951 | 15.2 m | 2,600 |
| UPRR;MOYIE SPRINGS OP | Idaho | Fair | 1965 | 44.2 m | 2,600 |
| MOYIE R.GORGE;MOYIE BR. | Idaho | Fair | 1965 | 372.8 m | 2,600 |
| BIG BEAR CREEK | Idaho | Fair | 1954 | 43.0 m | 2,600 |
| SMRR;UPRR;PLUMMER CRK | Idaho | Fair | 2016 | 158.8 m | 2,600 |
| BENEWAH CREEK | Idaho | Fair | 1996 | 35.4 m | 2,600 |
| I 15 NB-SB; FORT HALL IC | Idaho | Good | 2023 | 67.7 m | 2,600 |
| NEW YORK CANAL | Idaho | Good | 1977 | 36.6 m | 2,600 |
| DRY CREEK CANAL | Idaho | Fair | 2015 | 11.3 m | 2,600 |
| A-1 CANAL | Idaho | Fair | 1950 | 10.1 m | 2,600 |
| SNAKE RIVER;DOWNARD BR | Idaho | Fair | 1994 | 342.3 m | 2,600 |
| IDAHO CANAL | Idaho | Fair | 1960 | 23.2 m | 2,600 |
| CONSOLIDATED FARMERS CNL | Idaho | Good | 2010 | 9.8 m | 2,600 |
| PARADISE CREEK | Idaho | Fair | 1915 | 9.1 m | 2,600 |
| MARSH CREEK | Idaho | Fair | 2013 | 14.3 m | 2,600 |
| HENRYS FORK SNAKE RIVER | Idaho | Good | 2007 | 75.0 m | 2,600 |
| ARCO CANAL | Idaho | Good | 1962 | 7.9 m | 2,600 |
| SPRING CREEK | Idaho | Good | 1962 | 9.8 m | 2,600 |
| BIG LOST RIVER | Idaho | Fair | 1962 | 19.5 m | 2,600 |
| GALLOWAY CANAL | Idaho | Fair | 1977 | 7.3 m | 2,600 |
| LITTLE SALMON RIVER | Idaho | Good | 2017 | 61.3 m | 2,600 |
| BOULDER CREEK | Idaho | Fair | 2002 | 35.1 m | 2,600 |
| FALL CREEK | Idaho | Fair | 2001 | 12.2 m | 2,600 |
| LITTLE SALMON RIVER | Idaho | Fair | 1962 | 67.1 m | 2,600 |
| LITTLE SALMON RIVER | Idaho | Fair | 1962 | 61.6 m | 2,600 |
| LITTLE SALMON RIVER | Idaho | Fair | 1962 | 61.6 m | 2,600 |
| LITTLE SALMON RIVER | Idaho | Fair | 1961 | 50.9 m | 2,600 |
| RAPID RIVER | Idaho | Good | 2005 | 38.4 m | 2,600 |
| NEW YORK CANAL | Idaho | Good | 2014 | 32.9 m | 2,600 |
| GOLDEN GATE LOW LINE CNL | Idaho | Fair | 1991 | 23.8 m | 2,500 |
| RIVERSIDE CANAL | Idaho | Fair | 1940 | 7.3 m | 2,500 |
| SUCCOR CREEK | Idaho | Good | 2017 | 49.4 m | 2,500 |
| I 90 EB-WB;MCGUIRE RD.GS | Idaho | Fair | 1976 | 98.8 m | 2,500 |
| HAYDEN CREEK | Idaho | Fair | 1987 | 10.7 m | 2,500 |
| REXBURG CANAL | Idaho | Fair | 1978 | 7.0 m | 2,500 |
| PORTNEUF RIVER | Idaho | Good | 2017 | 23.5 m | 2,500 |
| ROCK CREEK | Idaho | Fair | 1983 | 25.6 m | 2,500 |
| N. FK. ROCK CREEK | Idaho | Fair | 2008 | 83.2 m | 2,500 |
| BLACK CANYON CANAL | Idaho | Fair | 1973 | 21.0 m | 2,500 |
| CANAL | Idaho | Fair | 1985 | 9.8 m | 2,500 |
| BLACKFOOT CANAL | Idaho | Fair | 2006 | 15.5 m | 2,500 |
| RESERVATION CANAL | Idaho | Fair | 2006 | 15.5 m | 2,500 |
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.