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 |
|---|---|---|---|---|---|
| POTLATCH R;E.HELMER BR | Idaho | Fair | 1977 | 15.8 m | 20 |
| PARADISE CREEK | Idaho | Fair | 1953 | 9.8 m | 20 |
| COTTONWOOD CREEK | Idaho | Fair | 1929 | 15.8 m | 20 |
| N.FK. EAST RIVER | Idaho | Good | 2024 | 23.8 m | 20 |
| L.W.BR.PRIEST R;MOORE CR | Idaho | Poor | 1980 | 12.2 m | 20 |
| FOURTH OF JULY CREEK | Idaho | Good | 1962 | 12.2 m | 20 |
| ROSE CREEK | Idaho | Good | 2006 | 14.6 m | 20 |
| I 90;COMPRESSOR IC | Idaho | Fair | 1963 | 81.1 m | 20 |
| PLACER CREEK | Idaho | Fair | 1960 | 7.3 m | 20 |
| FALL CREEK | Idaho | Fair | 2008 | 15.2 m | 20 |
| BIG LOST RIVER | Idaho | Fair | 1979 | 14.3 m | 20 |
| FARMERS FRIEND CANAL | Idaho | Good | 2020 | 14.0 m | 20 |
| CROSSCUT CANAL | Idaho | Fair | 1937 | 10.4 m | 20 |
| EGIN CANAL | Idaho | Fair | 1980 | 7.6 m | 20 |
| RUDY CANAL | Idaho | Fair | 1973 | 8.2 m | 20 |
| ANDERSON CANAL | Idaho | Good | 1974 | 7.3 m | 20 |
| CAMAS CREEK | Idaho | Fair | 1977 | 11.3 m | 20 |
| CAMAS CREEK | Idaho | Poor | 1972 | 9.1 m | 20 |
| DRY BED CANAL | Idaho | Fair | 1974 | 9.1 m | 20 |
| RATTLESNAKE CREEK (#2) | Idaho | Good | 2019 | 11.0 m | 20 |
| TRAIL CREEK | Idaho | Good | 2003 | 9.2 m | 20 |
| PORTER CANAL | Idaho | Good | 2013 | 7.3 m | 20 |
| OSGOOD CANAL | Idaho | Fair | 1928 | 8.5 m | 20 |
| STAR HOPE CREEK | Idaho | Fair | 1970 | 7.9 m | 20 |
| EIGHTEEN MILE CREEK | Idaho | Good | 2020 | 10.7 m | 20 |
| JEFFERSON CANAL | Idaho | Fair | 1978 | 9.8 m | 20 |
| REID CANAL | Idaho | Fair | 1960 | 10.7 m | 20 |
| REYNOLDS CREEK | Idaho | Good | 2024 | 7.6 m | 20 |
| WHITE CAP CR | Idaho | Good | 1936 | 36.3 m | 20 |
| OROFINO CREEK | Idaho | Fair | 1952 | 8.0 m | 20 |
| ELDORADO CREEK | Idaho | Fair | 1974 | 9.8 m | 20 |
| PALOUSE RIVER | Idaho | Fair | 1959 | 12.3 m | 20 |
| ELK CREEK | Idaho | Poor | 1961 | 7.3 m | 20 |
| ELK CREEK | Idaho | Poor | 1961 | 7.4 m | 20 |
| NF PALOUSE RIVER | Idaho | Good | 1998 | 17.1 m | 20 |
| WASHINGTON CREEK | Idaho | Fair | 1961 | 15.4 m | 20 |
| QUARTZ CREEK | Idaho | Fair | 1967 | 8.7 m | 20 |
| ISABELLA CREEK | Idaho | Fair | 1969 | 12.3 m | 20 |
| QUARTZ CREEK | Idaho | Fair | 1967 | 12.3 m | 20 |
| WASHINGTON CREEK | Idaho | Fair | 1953 | 12.3 m | 20 |
| CAYUSE CREEK | Idaho | Fair | 1967 | 37.3 m | 20 |
| NF CLEARWATER RIVER | Idaho | Fair | 1937 | 121.0 m | 20 |
| NF CLEARWATER RIVER | Idaho | Fair | 1962 | 123.7 m | 20 |
| WALTON CREEK | Idaho | Fair | 1953 | 7.5 m | 20 |
| ELK CREEK | Idaho | Good | 2017 | 22.3 m | 20 |
| FALL CREEK | Idaho | Fair | 1984 | 11.0 m | 20 |
| ROARING RIVER | Idaho | Good | 1957 | 22.6 m | 20 |
| MIDDLE FORK BOISE RIVER | Idaho | Poor | 1957 | 42.8 m | 20 |
| GRIMES CREEK | Idaho | Poor | 1954 | 16.3 m | 20 |
| CABIN CREEK | Idaho | Good | 2013 | 8.5 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.