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 |
|---|---|---|---|---|---|
| HENRYS FK.SNAKE RIVER | Idaho | Fair | 1977 | 98.5 m | 3,000 |
| CEDAR DRAW CANAL | Idaho | Good | 2015 | 6.7 m | 3,000 |
| COTTONWOOD CREEK | Idaho | Fair | 1978 | 8.2 m | 3,000 |
| GOLD CREEK | Idaho | Good | 2019 | 16.5 m | 3,000 |
| BIG MEADOW CREEK | Idaho | Fair | 1979 | 7.9 m | 2,900 |
| MORES CR; DUNNIGAN CR | Idaho | Good | 2008 | 34.4 m | 2,900 |
| MORES CR.;SPENCERS CABIN | Idaho | Good | 1995 | 28.0 m | 2,900 |
| MORES CR.;GRIMES CR.ROAD | Idaho | Fair | 1958 | 12.2 m | 2,900 |
| LITTLE WOOD RIVER | Idaho | Fair | 1977 | 12.2 m | 2,900 |
| LITTLE WOOD RIVER | Idaho | Fair | 1977 | 15.2 m | 2,900 |
| TWIN FALLS MAIN CANAL | Idaho | Fair | 2011 | 46.3 m | 2,900 |
| DRY CREEK | Idaho | Poor | 1934 | 18.3 m | 2,900 |
| MAIN CANAL | Idaho | Fair | 1956 | 43.0 m | 2,900 |
| SNAKE R.;AM.FALLS BR. | Idaho | Fair | 1975 | 348.7 m | 2,900 |
| SNAKE R.;AM.FALLS DAM BR | Idaho | Good | 1978 | 79.2 m | 2,900 |
| LATERAL 10 | Idaho | Fair | 1920 | 7.3 m | 2,900 |
| M.FK.WEISER RIVER | Idaho | Fair | 1974 | 48.8 m | 2,900 |
| COTTONWOOD CREEK | Idaho | Good | 2017 | 17.4 m | 2,900 |
| LESTER CREEK | Idaho | Good | 2017 | 7.9 m | 2,900 |
| PORTNEUF RIVER | Idaho | Fair | 1968 | 14.0 m | 2,850 |
| BIKE/PEDESTRIAN UP | Idaho | Good | 2018 | 7.3 m | 2,800 |
| ISLAND CANAL | Idaho | Fair | 2011 | 7.0 m | 2,800 |
| SAGLE SLOUGH | Idaho | Fair | 1974 | 23.8 m | 2,800 |
| NEW YORK CANAL | Idaho | Fair | 1972 | 17.1 m | 2,800 |
| WHISKEY CR.;OROFINO CR. | Idaho | Fair | 1951 | 12.8 m | 2,800 |
| ISLAND CANAL | Idaho | Fair | 2011 | 7.6 m | 2,800 |
| BURGESS CANAL | Idaho | Good | 1960 | 6.4 m | 2,800 |
| PHYLLIS CANAL | Idaho | Fair | 2001 | 7.9 m | 2,800 |
| BEAR RIVER;RIVERDALE BR | Idaho | Fair | 1960 | 65.8 m | 2,800 |
| G CANAL | Idaho | Fair | 1983 | 9.4 m | 2,800 |
| BOISE RIVER;NOTUS BRIDGE | Idaho | Fair | 1996 | 128.9 m | 2,800 |
| NEW YORK CANAL | Idaho | Fair | 1976 | 33.5 m | 2,800 |
| IDAHO CANAL | Idaho | Fair | 1967 | 21.6 m | 2,800 |
| SNAKE RIVER | Idaho | Fair | 1967 | 166.4 m | 2,800 |
| GREAT WESTERN CANAL | Idaho | Fair | 1967 | 21.6 m | 2,800 |
| BURGESS CANAL | Idaho | Good | 1961 | 6.4 m | 2,800 |
| BIG WOOD RIVER | Idaho | Fair | 1974 | 30.8 m | 2,800 |
| PORTNEUF RIVER | Idaho | Poor | 1969 | 14.3 m | 2,800 |
| PLACER CREEK | Idaho | Fair | 1942 | 6.4 m | 2,800 |
| SOUTH FORK CDA RIVER | Idaho | Fair | 1987 | 35.1 m | 2,800 |
| WHITEBIRD CREEK | Idaho | Fair | 1975 | 247.2 m | 2,800 |
| MIDDLETON CANAL | Idaho | Good | 1988 | 11.9 m | 2,700 |
| CEDAR DRAW | Idaho | Fair | 1932 | 10.4 m | 2,700 |
| TAMMANY CREEK | Idaho | Fair | 1987 | 11.0 m | 2,700 |
| G CANAL | Idaho | Fair | 1973 | 7.9 m | 2,700 |
| BOISE RIVER | Idaho | Fair | 1975 | 60.4 m | 2,700 |
| BIG LOST RIVER | Idaho | Good | 1977 | 18.6 m | 2,700 |
| LATERAL A CANAL | Idaho | Good | 2019 | 7.0 m | 2,700 |
| UPPER W.BRANCH PRIEST R. | Idaho | Fair | 1937 | 90.2 m | 2,700 |
| PORTNEUF RIVER | Idaho | Good | 1968 | 29.3 m | 2,700 |
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.