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 |
|---|---|---|---|---|---|
| SPRING CREEK | Idaho | Fair | 1975 | 27.7 m | 60 |
| CLEAR CREEK | Idaho | Fair | 1966 | 9.1 m | 60 |
| CLEAR CREEK | Idaho | Fair | 1966 | 8.5 m | 60 |
| BIG CREEK;SUNSHINE MINE | Idaho | Good | 1977 | 21.3 m | 60 |
| BIG CREEK;SUNSHINE MINE | Idaho | Fair | 1974 | 25.0 m | 60 |
| SOUTH FORK PAYETTE RIVER | Idaho | Fair | 1966 | 38.7 m | 60 |
| SILVER CREEK | Idaho | Good | 1967 | 21.1 m | 60 |
| LOW LINE CANAL | Idaho | Fair | 1983 | 10.1 m | 60 |
| SODA CANAL | Idaho | Fair | 1980 | 7.9 m | 60 |
| BLACKFOOT RIVER | Idaho | Fair | 1978 | 15.2 m | 60 |
| SILVER CREEK | Idaho | Fair | 1977 | 15.8 m | 60 |
| SILVER CREEK | Idaho | Poor | 1978 | 19.8 m | 60 |
| TRAIL CREEK | Idaho | Poor | 1995 | 7.6 m | 60 |
| GAME CREEK | Idaho | Fair | 2001 | 7.0 m | 60 |
| L CANAL | Idaho | Fair | 1965 | 7.3 m | 60 |
| R CANAL | Idaho | Fair | 1974 | 12.2 m | 60 |
| U CANAL | Idaho | Fair | 1990 | 19.5 m | 60 |
| HARRISON CANAL | Idaho | Fair | 1973 | 9.1 m | 60 |
| LOW LINE CANAL | Idaho | Fair | 1994 | 13.7 m | 60 |
| SALMON LATERAL NO.21 | Idaho | Fair | 1970 | 9.8 m | 60 |
| LOW LINE CANAL | Idaho | Fair | 1986 | 11.6 m | 60 |
| SALMON MAIN CANAL | Idaho | Fair | 1971 | 15.2 m | 60 |
| CLEAR CREEK | Idaho | Fair | 1966 | 9.1 m | 60 |
| CAMAS CREEK | Idaho | Fair | 1972 | 7.9 m | 60 |
| CLEAR CREEK | Idaho | Fair | 1966 | 9.1 m | 60 |
| CLEAR CREEK | Idaho | Fair | 1966 | 7.9 m | 60 |
| E.BR.GOOSE CREEK | Idaho | Fair | 1984 | 10.4 m | 60 |
| W.BR.GOOSE CREEK | Idaho | Good | 1991 | 7.3 m | 60 |
| POWER CANAL | Idaho | Good | 1995 | 30.8 m | 60 |
| MUD CREEK | Idaho | Fair | 1983 | 7.9 m | 60 |
| KING HILL DITCH | Idaho | Fair | 1969 | 7.9 m | 60 |
| PAYETTE RIVER | Idaho | Fair | 1996 | 28.0 m | 60 |
| VINSON WASH | Idaho | Poor | 1930 | 11.0 m | 60 |
| BRUNEAU RIVER | Idaho | Fair | 1989 | 39.6 m | 60 |
| GRANDVIEW IRRIGATION CNL | Idaho | Poor | 1991 | 7.9 m | 60 |
| LITTLE WEISER RIVER | Idaho | Fair | 1996 | 27.7 m | 60 |
| EGIN CANAL | Idaho | Fair | 1985 | 9.4 m | 60 |
| GRANGER CREEK | Idaho | Good | 1996 | 8.5 m | 60 |
| LONGHAUL CREEK | Idaho | Good | 2024 | 15.2 m | 60 |
| CLEAR CREEK | Idaho | Fair | 1984 | 15.2 m | 60 |
| LONGHAUL CREEK | Idaho | Good | 2024 | 15.2 m | 60 |
| LITTLE SALMON RIVER | Idaho | Good | 2010 | 54.6 m | 60 |
| LEMHI RIVER | Idaho | Fair | 1930 | 28.7 m | 60 |
| BIG BEAR CREEK | Idaho | Fair | 1959 | 14.0 m | 60 |
| SALMON RIVER | Idaho | Good | 2016 | 67.4 m | 60 |
| LONG CREEK | Idaho | Good | 1975 | 18.3 m | 60 |
| TETON ISLAND CANAL | Idaho | Fair | 1964 | 7.6 m | 60 |
| BRUSHY FORK | Idaho | Fair | 1956 | 14.0 m | 60 |
| BRUSHY FORK CREEK | Idaho | Good | 1993 | 34.4 m | 60 |
| CANYON CREEK | Idaho | Fair | 1970 | 9.1 m | 60 |
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.