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 |
|---|---|---|---|---|---|
| SANTA CREEK | Idaho | Poor | 1964 | 7.5 m | 150 |
| B LINE CANAL | Idaho | Fair | 1960 | 7.9 m | 150 |
| TEXAS SLOUGH | Idaho | Good | 2012 | 12.8 m | 150 |
| BLACK CANYON CANAL | Idaho | Fair | 1977 | 19.8 m | 150 |
| OROGRANDE CREEK | Idaho | Good | 1956 | 31.1 m | 145 |
| N F CLEARWATER RIVE | Idaho | Good | 1965 | 111.6 m | 145 |
| BEAR R;CHEESECAKE FAC BR | Idaho | Fair | 1975 | 48.8 m | 140 |
| LITTLE WEISER RIVER | Idaho | Good | 1991 | 36.3 m | 140 |
| CREEK;SLOUGH | Idaho | Fair | 1935 | 9.4 m | 140 |
| BEAR RIVER;E.DINGLE BR | Idaho | Fair | 1989 | 46.6 m | 140 |
| RESERVATION CANAL | Idaho | Fair | 1984 | 20.7 m | 140 |
| ABERDEEN SPRINGFIELD CNL | Idaho | Fair | 1973 | 22.3 m | 140 |
| SAND CREEK | Idaho | Fair | 1930 | 11.3 m | 140 |
| PEOPLES CANAL | Idaho | Fair | 1964 | 8.5 m | 140 |
| PEOPLES CANAL | Idaho | Fair | 1967 | 12.8 m | 140 |
| PEOPLES CANAL | Idaho | Fair | 1973 | 13.7 m | 140 |
| BEAR RIVER;SW NITER BR | Idaho | Good | 1991 | 54.9 m | 140 |
| CONSOLIDATED FARMERS CNL | Idaho | Good | 2014 | 7.6 m | 140 |
| SILVER CREEK;N.PICABO B | Idaho | Fair | 1989 | 13.7 m | 140 |
| WHITEBIRD CREEK | Idaho | Fair | 1950 | 16.5 m | 140 |
| YELLOWBANKS CREEK | Idaho | Fair | 2003 | 11.9 m | 140 |
| FOUR MILE CREEK | Idaho | Good | 2010 | 11.0 m | 140 |
| I90;FOURTH OF JULY SM IC | Idaho | Fair | 1988 | 81.4 m | 140 |
| S. BRANCH WILFORD CANAL | Idaho | Good | 1997 | 8.5 m | 140 |
| BEAVER CREEK | Idaho | Fair | 1967 | 14.8 m | 140 |
| OROFINO CREEK | Idaho | Poor | 1958 | 13.1 m | 140 |
| LOW LINE CANAL | Idaho | Fair | 1965 | 29.6 m | 140 |
| RICE CREEK | Idaho | Fair | 1960 | 9.4 m | 140 |
| LOW LINE CANAL | Idaho | Fair | 1930 | 24.1 m | 140 |
| HIGH LINE CANAL | Idaho | Fair | 1969 | 25.0 m | 140 |
| LOW LINE CANAL | Idaho | Fair | 1980 | 24.1 m | 140 |
| HIGH LINE CANAL | Idaho | Fair | 1964 | 23.5 m | 140 |
| LOW LINE CANAL | Idaho | Fair | 1981 | 25.6 m | 140 |
| SALMON RIVER | Idaho | Fair | 1949 | 135.6 m | 140 |
| LOW LINE CANAL | Idaho | Fair | 1967 | 24.1 m | 140 |
| WEISER RIVER | Idaho | Fair | 1930 | 28.7 m | 140 |
| MORA CANAL | Idaho | Fair | 1987 | 15.5 m | 140 |
| DEER FLAT HIGHLINE CNL | Idaho | Good | 1990 | 7.6 m | 140 |
| GARDEN CREEK | Idaho | Good | 2020 | 15.2 m | 140 |
| BISSEL CREEK | Idaho | Fair | 1945 | 6.7 m | 140 |
| SAND CREEK | Idaho | Good | 1989 | 9.4 m | 135 |
| DEEP CREEK | Idaho | Good | 2023 | 15.2 m | 132 |
| LAWYER CREEK;SW.KAMIAH B | Idaho | Fair | 1950 | 25.3 m | 130 |
| DRY CREEK | Idaho | Good | 2021 | 19.5 m | 130 |
| W.FK.ST MARIES RIVER | Idaho | Poor | 1973 | 9.1 m | 130 |
| HAYDEN CREEK | Idaho | Fair | 1960 | 10.1 m | 130 |
| HIGH LINE CANAL | Idaho | Fair | 1965 | 9.4 m | 130 |
| SLOUGH CANAL | Idaho | Fair | 1960 | 7.3 m | 130 |
| GREAT WESTERN CANAL | Idaho | Fair | 2001 | 8.5 m | 130 |
| I 15 NB-SB;WOODVILLE GS | Idaho | Fair | 1962 | 77.4 m | 130 |
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.