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 |
|---|---|---|---|---|---|
| MORA CANAL | Idaho | Fair | 1995 | 12.2 m | 120 |
| DEER FLAT HIGH LINE | Idaho | Good | 2013 | 7.6 m | 120 |
| SALMON RIVER (ISLAND BR) | Idaho | Good | 2016 | 24.4 m | 120 |
| PORTNEUF R;PEBBLE BR | Idaho | Fair | 1984 | 21.6 m | 115 |
| JACKKNIFE CREEK | Idaho | Good | 2002 | 9.1 m | 115 |
| STRATTON CANAL | Idaho | Good | 2013 | 17.4 m | 112 |
| BLACKFOOT RIVER | Idaho | Good | 1990 | 24.4 m | 110 |
| BEAR RIVER;THATCHER BR. | Idaho | Fair | 1984 | 69.2 m | 110 |
| BLACKFOOT RIVER | Idaho | Fair | 2006 | 22.6 m | 110 |
| SALMON FALLS CREEK | Idaho | Fair | 1984 | 12.2 m | 110 |
| SUMMIT CREEK | Idaho | Good | 1975 | 24.4 m | 110 |
| SUMMIT CREEK | Idaho | Good | 1975 | 29.6 m | 110 |
| LAKE CREEK | Idaho | Good | 1975 | 24.4 m | 110 |
| BEAVER CREEK | Idaho | Fair | 1973 | 11.3 m | 110 |
| GREAT WESTERN CANAL | Idaho | Fair | 1951 | 11.3 m | 110 |
| SIDEHILL CANAL | Idaho | Fair | 1957 | 7.8 m | 110 |
| W. CAMAS CREEK | Idaho | Good | 1970 | 8.2 m | 110 |
| BEAVER CREEK | Idaho | Good | 1970 | 7.3 m | 110 |
| INDIAN CREEK | Idaho | Fair | 1970 | 12.2 m | 110 |
| TWO MOUTH CREEK | Idaho | Fair | 1970 | 12.8 m | 110 |
| RESERVATION CANAL | Idaho | Fair | 1984 | 6.7 m | 110 |
| TETON ISLAND CANAL | Idaho | Fair | 1977 | 14.3 m | 110 |
| UPPER CROOKED RIVER | Idaho | Good | 2024 | 15.2 m | 110 |
| W.BR.SNAKE R.VALLEY CNL | Idaho | Fair | 1979 | 6.7 m | 110 |
| W BR SNAKE R VALLEY CNL | Idaho | Fair | 1980 | 6.4 m | 110 |
| SAND CREEK CANAL | Idaho | Fair | 1979 | 8.5 m | 110 |
| BLACKFOOT CANAL | Idaho | Fair | 1990 | 9.1 m | 110 |
| BIG LOST RIVER | Idaho | Fair | 1984 | 9.1 m | 110 |
| CROOKED RIVER | Idaho | Good | 1965 | 9.1 m | 110 |
| I 86;MASSACRE ROCKS IC | Idaho | Fair | 1985 | 79.6 m | 110 |
| UPPER CROOKED RIVER | Idaho | Poor | 1965 | 7.9 m | 110 |
| DRAIN | Idaho | Good | 2023 | 12.2 m | 110 |
| S.FK.CLEARWATER RIVER | Idaho | Fair | 1986 | 31.1 m | 110 |
| THOMPSON LAKE OUTLET BR | Idaho | Fair | 1986 | 14.6 m | 110 |
| CLOVER CREEK | Idaho | Fair | 1970 | 9.8 m | 110 |
| C CANAL | Idaho | Poor | 1962 | 7.9 m | 110 |
| BIG LOST RIVER | Idaho | Fair | 1996 | 21.3 m | 110 |
| LITTLE POTLATCH CREEK | Idaho | Fair | 1973 | 8.2 m | 110 |
| LITTLE POTLATCH CREEK | Idaho | Fair | 1940 | 13.1 m | 110 |
| OROFINO CREEK | Idaho | Fair | 1960 | 9.8 m | 110 |
| LITTLE POTLATCH CREEK | Idaho | Fair | 1965 | 10.7 m | 110 |
| LITTLE POTLATCH CREEK | Idaho | Fair | 1936 | 7.9 m | 110 |
| WEISER RIVER | Idaho | Fair | 1998 | 57.0 m | 110 |
| I 90;MILL ROAD IC | Idaho | Poor | 1963 | 73.2 m | 110 |
| FARMERS COOP SEBREE CNL | Idaho | Fair | 1971 | 8.8 m | 110 |
| WALDVOGEL CANAL | Idaho | Fair | 2004 | 7.6 m | 110 |
| POTLACH RIVER | Idaho | Good | 2016 | 48.8 m | 110 |
| LITTLE VALLEY CREEK | Idaho | Fair | 1974 | 7.9 m | 110 |
| LAPWAI CREEK | Idaho | Fair | 1963 | 14.6 m | 110 |
| TETON ISLAND CANAL | Idaho | Good | 1977 | 13.7 m | 110 |
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.