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 |
|---|---|---|---|---|---|
| FIVE MILE CREEK | Idaho | Good | 2020 | 7.9 m | 25 |
| WASTEWAY CANAL | Idaho | Fair | 1995 | 8.0 m | 25 |
| Twin Falls N. Side Canal | Idaho | Fair | 1984 | 7.0 m | 25 |
| Milner Gooding Canal | Idaho | Poor | 1960 | 21.3 m | 25 |
| Little Wood River | Idaho | Fair | 1980 | 11.3 m | 25 |
| Little Wood River | Idaho | Fair | 1940 | 9.6 m | 25 |
| Dietrich Main Canal | Idaho | Poor | 1987 | 19.6 m | 25 |
| Little Lost River | Idaho | Good | 2003 | 13.0 m | 25 |
| Y-1 Canal | Idaho | Good | 1991 | 9.1 m | 25 |
| Twin Falls N. Side Canal | Idaho | Poor | 1964 | 9.6 m | 25 |
| Little Wood River | Idaho | Good | 1999 | 12.8 m | 25 |
| Shoshone Creek | Idaho | Good | 1985 | 14.0 m | 25 |
| East Fork Pine Creek | Idaho | Good | 1998 | 19.2 m | 25 |
| White Bird Creek | Idaho | Good | 2000 | 22.2 m | 25 |
| Eagle Creek | Idaho | Good | 1974 | 12.7 m | 25 |
| Big Timber Creek | Idaho | Good | 1979 | 7.3 m | 25 |
| East Fork Salmon River | Idaho | Good | 1964 | 30.7 m | 25 |
| Challis Creek | Idaho | Good | 1981 | 13.3 m | 25 |
| West Fork Morgan Creek | Idaho | Good | 1995 | 12.4 m | 25 |
| Morgan Creek | Idaho | Good | 2004 | 14.7 m | 25 |
| Deep Creek | Idaho | Good | 1983 | 8.4 m | 25 |
| North Fork Owyhee River | Idaho | Fair | 1968 | 24.4 m | 25 |
| Market Lake Canel | Idaho | Good | 2000 | 18.9 m | 25 |
| Milner Gooding Canal | Idaho | Fair | 2014 | 23.0 m | 25 |
| Current Creek | Idaho | Good | 2017 | 9.7 m | 25 |
| SO. FK. WHITE BIRD CREEK | Idaho | Good | 2008 | 15.3 m | 25 |
| SMITH CREEK | Idaho | Fair | 1972 | 9.8 m | 25 |
| SMITH CREEK | Idaho | Fair | 1972 | 9.8 m | 25 |
| TRINITY CREEK | Idaho | Fair | 1966 | 11.6 m | 25 |
| SMITH CREEK | Idaho | Fair | 1972 | 9.8 m | 25 |
| GRIMES CREEK | Idaho | Fair | 1947 | 16.0 m | 25 |
| MORES CREEK | Idaho | Good | 1979 | 9.1 m | 25 |
| SOUTH FORK SALMON RIVER | Idaho | Fair | 1966 | 17.1 m | 25 |
| SOUTH FORK PAYETTE RIVER | Idaho | Good | 1976 | 25.3 m | 25 |
| CLEAR CREEK | Idaho | Good | 1957 | 11.3 m | 25 |
| NAPIAS CREEK | Idaho | Poor | 1953 | 7.9 m | 25 |
| SMILEY CREEK | Idaho | Fair | 1979 | 10.4 m | 25 |
| LITTLE SMOKY CREEK | Idaho | Fair | 1966 | 6.7 m | 25 |
| TIE CANYON CREEK | Idaho | Good | 1999 | 8.5 m | 24 |
| MOOSE CREEK | Idaho | Fair | 1975 | 8.5 m | 24 |
| KAY CREEK | Idaho | Good | 2011 | 8.5 m | 24 |
| COTTONWOOD CREEK | Idaho | Good | 2011 | 8.5 m | 24 |
| OWYHEE RIVER | Idaho | Fair | 1987 | 36.3 m | 20 |
| OWYHEE RIVER | Idaho | Good | 1987 | 35.1 m | 20 |
| LITTLE HANGMAN CREEK | Idaho | Fair | 1977 | 16.2 m | 20 |
| S.FK.CDA R.;EB OFF RAMP | Idaho | Poor | 1964 | 53.3 m | 20 |
| S.FK.CDA R.;EB ON RAMP | Idaho | Fair | 1964 | 19.5 m | 20 |
| SAND CREEK | Idaho | Fair | 1962 | 12.8 m | 20 |
| CUB CREEK | Idaho | Fair | 2001 | 12.8 m | 20 |
| CUB RIVER;FOSTER CRK BR. | Idaho | Fair | 1998 | 8.2 m | 20 |
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.