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 |
|---|---|---|---|---|---|
| S.FK.COEUR DALENE RIVER | Idaho | Fair | 1973 | 26.2 m | 600 |
| SALMON RIVER;E. CLAYTON | Idaho | Good | 2014 | 80.2 m | 600 |
| E. FK. SALMON RIVER | Idaho | Good | 2014 | 42.7 m | 600 |
| BRADSHAW CREEK | Idaho | Good | 1988 | 8.8 m | 600 |
| MALM GULCH | Idaho | Good | 1988 | 6.7 m | 600 |
| ROCK CREEK;SHOE CR.BR. | Idaho | Fair | 1971 | 6.9 m | 600 |
| ROCK CREEK | Idaho | Good | 1971 | 6.9 m | 600 |
| RIDENBAUGH CANAL | Idaho | Fair | 1969 | 6.7 m | 600 |
| SEVEN MILE SLOUGH | Idaho | Fair | 1973 | 14.3 m | 590 |
| WHITE BIRD CREEK | Idaho | Good | 2013 | 21.6 m | 590 |
| LAPWAI CREEK | Idaho | Good | 1999 | 20.1 m | 588 |
| CASTLE CREEK | Idaho | Fair | 1955 | 18.9 m | 580 |
| BIRCH CREEK | Idaho | Fair | 1954 | 8.5 m | 580 |
| PALOUSE R;SE.POTLATCH BR | Idaho | Fair | 1965 | 58.8 m | 580 |
| I 84;850 WEST RD GS | Idaho | Fair | 1966 | 67.1 m | 580 |
| INDEPENDENT CANAL | Idaho | Fair | 1960 | 10.7 m | 580 |
| DEEP CREEK #4 | Idaho | Good | 2012 | 20.7 m | 570 |
| DEEP CREEK | Idaho | Fair | 1975 | 17.7 m | 570 |
| DEEP CREEK | Idaho | Good | 2014 | 19.2 m | 570 |
| DEEP CREEK | Idaho | Fair | 1975 | 17.4 m | 570 |
| NEW YORK CANAL | Idaho | Good | 1997 | 45.1 m | 570 |
| KUNA CANAL | Idaho | Fair | 1988 | 12.5 m | 570 |
| MASON CREEK FEEDER CANAL | Idaho | Fair | 1990 | 10.7 m | 570 |
| DEER FLAT HIGH LINE CNL | Idaho | Good | 2003 | 8.5 m | 570 |
| LOW LINE CANAL | Idaho | Fair | 1965 | 21.0 m | 570 |
| BEAR RIVER;N.DINGLE BR. | Idaho | Fair | 1966 | 36.9 m | 560 |
| WARM SPRINGS CREEK | Idaho | Fair | 1955 | 15.9 m | 560 |
| WHISKEY CREEK | Idaho | Good | 1962 | 8.8 m | 560 |
| MILNER GOODING CANAL | Idaho | Fair | 1960 | 9.4 m | 560 |
| SNAKE RIVER;HEISE BR | Idaho | Fair | 1975 | 103.9 m | 560 |
| ABERDEEN SPRINGFIELD CNL | Idaho | Fair | 1993 | 22.9 m | 560 |
| PEOPLES CANAL | Idaho | Fair | 1993 | 10.4 m | 560 |
| LAVASIDE CANAL | Idaho | Fair | 1993 | 7.3 m | 560 |
| INDIAN CREEK | Idaho | Fair | 1935 | 12.2 m | 560 |
| FARMERS FRIEND CANAL | Idaho | Fair | 1950 | 10.1 m | 560 |
| EAGLE ROCK CANAL | Idaho | Fair | 1950 | 10.1 m | 560 |
| ANDERSON CANAL | Idaho | Fair | 1964 | 10.4 m | 560 |
| LAPWAI CREEK | Idaho | Good | 2011 | 18.9 m | 560 |
| BOISE RIVER | Idaho | Poor | 1954 | 100.9 m | 560 |
| ENTERPRIZE CANAL | Idaho | Fair | 1950 | 6.7 m | 560 |
| MILNER GOODING CANAL | Idaho | Poor | 1965 | 15.2 m | 560 |
| DRY BED SNAKE RIVER | Idaho | Fair | 1968 | 37.8 m | 560 |
| FISH CREEK | Idaho | Good | 2018 | 34.1 m | 550 |
| POST OFFICE CREEK | Idaho | Fair | 1960 | 22.9 m | 550 |
| WAWAALAMNIME CREEK | Idaho | Fair | 1960 | 24.4 m | 550 |
| IMNAMATNOON CREEK | Idaho | Fair | 1957 | 28.7 m | 550 |
| CANYON CREEK | Idaho | Fair | 1985 | 11.9 m | 550 |
| SALMON R;WHITEBIRD TRUSS | Idaho | Poor | 1935 | 178.3 m | 550 |
| M FK PAYETTE R;CROUCH BR | Idaho | Good | 2016 | 44.8 m | 550 |
| CUB RIVER;W.FRANKLIN BR. | Idaho | Fair | 1959 | 9.1 m | 550 |
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.