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 |
|---|---|---|---|---|---|
| MORES CR.;STIERMAN GULCH | Idaho | Good | 1990 | 21.3 m | 2,000 |
| MORES CR;THORN CREEK | Idaho | Good | 2001 | 25.0 m | 2,000 |
| MORES CR;MCKINLEY GULCH | Idaho | Good | 1990 | 24.6 m | 2,000 |
| MORES CREEK;BIG GULCH | Idaho | Good | 1990 | 17.4 m | 2,000 |
| MORES CR;N.Y. GULCH #1 | Idaho | Fair | 2002 | 28.0 m | 2,000 |
| MORES CR;N.Y. GULCH #2 | Idaho | Fair | 2002 | 28.0 m | 2,000 |
| ELK CREEK | Idaho | Good | 2000 | 7.3 m | 2,000 |
| S. GOODING MAIN CANAL | Idaho | Fair | 2008 | 7.9 m | 2,000 |
| WILLOW CREEK | Idaho | Fair | 1975 | 7.9 m | 2,000 |
| NOTUS CANAL | Idaho | Good | 2018 | 6.7 m | 2,000 |
| OROFINO CREEK | Idaho | Good | 1978 | 31.1 m | 2,000 |
| ABERDEEN WASTEWAY CANAL | Idaho | Fair | 1968 | 10.7 m | 2,000 |
| NORTH LOW LINE CANAL | Idaho | Fair | 1969 | 10.7 m | 2,000 |
| SNAKE RIVER;ROBERTS BR. | Idaho | Fair | 1978 | 126.2 m | 2,000 |
| FARMERS FRIEND CANAL | Idaho | Good | 1983 | 7.0 m | 2,000 |
| SILVER CREEK | Idaho | Fair | 1979 | 31.4 m | 2,000 |
| SILVER CREEK | Idaho | Fair | 1979 | 19.2 m | 2,000 |
| DRY CREEK | Idaho | Good | 1991 | 16.5 m | 2,000 |
| OVID CREEK | Idaho | Good | 2019 | 11.0 m | 2,000 |
| OVID CREEK | Idaho | Good | 2019 | 20.1 m | 2,000 |
| BURLINGTON NORTHERN RR | Idaho | Fair | 1966 | 86.0 m | 2,000 |
| LIGHTNING CREEK | Idaho | Fair | 2010 | 129.8 m | 2,000 |
| RIDENBAUGH CANAL | Idaho | Good | 2005 | 13.4 m | 2,000 |
| PORTNEUF R;FT HALL MINE | Idaho | Fair | 1983 | 26.2 m | 2,000 |
| LEWISVILLE CANAL | Idaho | Fair | 1950 | 10.4 m | 2,000 |
| LOWLINE CANAL | Idaho | Good | 1995 | 18.6 m | 2,000 |
| LOW LINE CANAL | Idaho | Fair | 1953 | 32.0 m | 2,000 |
| W BR SNAKE RVR VLY CANAL | Idaho | Fair | 2001 | 9.8 m | 2,000 |
| FARR LATERAL CANAL | Idaho | Fair | 1993 | 8.5 m | 2,000 |
| GLENDALE CANAL | Idaho | Good | 2021 | 9.8 m | 2,000 |
| BIG WOOD RIVER | Idaho | Good | 1998 | 53.0 m | 2,000 |
| BYPASS CANAL | Idaho | Good | 1998 | 12.8 m | 2,000 |
| REID CANAL | Idaho | Fair | 1960 | 10.1 m | 2,000 |
| I 84 EB-WB;MAYFIELD IC | Idaho | Fair | 1960 | 64.6 m | 2,000 |
| WILLOW CREEK | Idaho | Good | 2014 | 16.8 m | 1,900 |
| EVANS CREEK | Idaho | Good | 1994 | 24.1 m | 1,900 |
| ROSE LAKE OVERPASS | Idaho | Fair | 1997 | 78.3 m | 1,900 |
| CDA RIVER;ROSE LAKE | Idaho | Fair | 1997 | 131.4 m | 1,900 |
| C CANAL | Idaho | Fair | 1965 | 19.2 m | 1,900 |
| SALEM CANAL | Idaho | Good | 2001 | 19.2 m | 1,900 |
| MALAD RIVER | Idaho | Fair | 1956 | 30.5 m | 1,900 |
| HOT CREEK | Idaho | Fair | 1961 | 6.7 m | 1,900 |
| CHIMNEY CR.;SHEEP CR. | Idaho | Fair | 1961 | 8.5 m | 1,900 |
| CORRAL CREEK | Idaho | Fair | 1969 | 10.1 m | 1,900 |
| THREE MILE CREEK | Idaho | Fair | 1969 | 9.4 m | 1,900 |
| W.FK.SOLDIER CREEK | Idaho | Fair | 1958 | 7.3 m | 1,900 |
| SOLDIER CREEK | Idaho | Fair | 1958 | 7.3 m | 1,900 |
| E.FK.SOLDIER CREEK | Idaho | Fair | 1958 | 7.3 m | 1,900 |
| JOHNSON CREEK | Idaho | Fair | 1958 | 7.3 m | 1,900 |
| KNOWLTON CREEK | Idaho | Fair | 1958 | 9.1 m | 1,900 |
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.