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 |
|---|---|---|---|---|---|
| LITTLE SAND CREEK | Idaho | Fair | 1992 | 11.3 m | 250 |
| MAIN NORTHSIDE CANAL | Idaho | Fair | 1960 | 28.0 m | 250 |
| LANGLEY GULCH | Idaho | Fair | 1978 | 6.7 m | 250 |
| BOISE RIVER | Idaho | Good | 2008 | 101.8 m | 250 |
| CROSSCUT CANAL | Idaho | Good | 2013 | 10.4 m | 250 |
| I 90;SHIPLETT ROAD GS | Idaho | Fair | 1967 | 65.5 m | 250 |
| SPRING CREEK | Idaho | Fair | 1975 | 7.0 m | 250 |
| WOLF LODGE CREEK | Idaho | Fair | 1991 | 15.2 m | 250 |
| LOW LINE CANAL | Idaho | Fair | 1963 | 11.0 m | 250 |
| MICA CREEK | Idaho | Fair | 2006 | 10.8 m | 250 |
| I 15;SAND ROAD GS | Idaho | Fair | 1959 | 64.6 m | 250 |
| MARIE CREEK | Idaho | Fair | 1963 | 11.6 m | 250 |
| LAPWAI CREEK | Idaho | Fair | 1983 | 16.5 m | 250 |
| EGIN CANAL | Idaho | Good | 2020 | 18.9 m | 250 |
| GRAVEYARD GULCH | Idaho | Fair | 1968 | 15.8 m | 250 |
| E.BR.GOOSE CR;NW.MEADOWS | Idaho | Fair | 1968 | 7.9 m | 250 |
| GALLOWAY CANAL | Idaho | Good | 2005 | 20.4 m | 250 |
| G CANAL | Idaho | Good | 1986 | 6.7 m | 250 |
| WEISER RIVER | Idaho | Good | 1998 | 75.0 m | 250 |
| G CANAL | Idaho | Fair | 1989 | 7.3 m | 250 |
| C CANAL | Idaho | Fair | 1965 | 10.7 m | 250 |
| T.F.NORTHSIDE MAIN CNL | Idaho | Fair | 1966 | 61.6 m | 250 |
| MILNER GOODING CANAL | Idaho | Fair | 1966 | 45.1 m | 250 |
| LANGLEY GULCH | Idaho | Fair | 1975 | 7.0 m | 250 |
| RIVERSIDE CANAL | Idaho | Fair | 1977 | 8.8 m | 250 |
| RIVERSIDE CANAL | Idaho | Fair | 2000 | 9.8 m | 250 |
| FARMERS COOP SEBREE CNL | Idaho | Fair | 1979 | 9.8 m | 250 |
| CEDAR DRAW CREEK | Idaho | Good | 2012 | 7.3 m | 250 |
| CEDAR DRAW CREEK | Idaho | Fair | 1999 | 9.1 m | 250 |
| SIDE CHANNEL TETON RIVER | Idaho | Fair | 1935 | 18.6 m | 250 |
| TETON RIVER(CACHE BR) | Idaho | Fair | 1956 | 32.0 m | 250 |
| DRY CREEK | Idaho | Good | 1994 | 7.6 m | 250 |
| DEER FLAT LOW LINE CANAL | Idaho | Good | 2024 | 7.7 m | 240 |
| SLAUGHTER HOUSE DRAW | Idaho | Good | 2023 | 10.4 m | 240 |
| SQUAW CREEK;N.OLA BR. | Idaho | Fair | 1965 | 19.2 m | 240 |
| SQUAW CREEK | Idaho | Good | 2016 | 20.4 m | 240 |
| LOW LINE CANAL | Idaho | Fair | 1998 | 11.3 m | 240 |
| S.FK.ROCK CREEK | Idaho | Fair | 1952 | 6.1 m | 240 |
| ABERDEEN SPRINGFIELD CNL | Idaho | Fair | 1962 | 25.3 m | 240 |
| ST JOE RIVER;ST JOE BR | Idaho | Fair | 1979 | 71.9 m | 240 |
| ST. ANTHONY CANAL | Idaho | Fair | 1963 | 10.4 m | 240 |
| ST. ANTHONY CANAL | Idaho | Good | 1975 | 12.2 m | 240 |
| S. BRANCH FALL RIVER CNL | Idaho | Fair | 1963 | 10.1 m | 240 |
| GOLDEN GATE CANAL | Idaho | Fair | 1992 | 9.8 m | 240 |
| WATSON SLOUGH CANAL | Idaho | Fair | 1968 | 6.7 m | 235 |
| LAPWAI CR;GARDEN GULCH | Idaho | Good | 1995 | 18.0 m | 230 |
| GREAT WESTERN CANAL | Idaho | Fair | 1956 | 10.1 m | 230 |
| EGIN CANAL | Idaho | Fair | 1960 | 8.5 m | 230 |
| DAWSON CREEK | Idaho | Good | 2009 | 13.1 m | 230 |
| FARMERS COOP SEBREE CNL | Idaho | Fair | 1976 | 10.4 m | 230 |
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.