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 |
|---|---|---|---|---|---|
| LAPWAI CREEK | Idaho | Fair | 2002 | 6.7 m | 550 |
| MOYIE R; UPPER EASTPORT | Idaho | Fair | 2005 | 76.2 m | 550 |
| SAND CREEK | Idaho | Fair | 1982 | 12.2 m | 550 |
| DEAD HORSE CREEK | Idaho | Good | 2013 | 12.2 m | 550 |
| FISHER CREEK | Idaho | Fair | 1958 | 24.4 m | 550 |
| N.FK.PAYETTE RIVER | Idaho | Fair | 1969 | 49.1 m | 550 |
| TWENTY MILE CREEK | Idaho | Good | 1969 | 31.1 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 |
| I 84;FIRST ST SOUTH GS | Idaho | Fair | 1960 | 91.4 m | 540 |
| LONG HOLLOW CREEK | Idaho | Good | 1999 | 13.1 m | 540 |
| L CANAL | Idaho | Good | 2003 | 7.3 m | 540 |
| COTTONWOOD CREEK | Idaho | Fair | 1976 | 12.2 m | 540 |
| SIRR & UPRR;S.ATHOL OP | Idaho | Poor | 1929 | 55.2 m | 540 |
| MOODY CREEK | Idaho | Fair | 1977 | 6.4 m | 540 |
| PINE CREEK | Idaho | Fair | 1958 | 9.8 m | 530 |
| PINE CREEK | Idaho | Fair | 1958 | 9.8 m | 530 |
| BLACKFOOT CANAL | Idaho | Fair | 1964 | 11.3 m | 530 |
| RESERVATION CANAL | Idaho | Fair | 1966 | 12.8 m | 530 |
| SAND CREEK | Idaho | Fair | 1964 | 12.8 m | 530 |
| HARRISON CANAL | Idaho | Fair | 1949 | 9.8 m | 520 |
| PACIFICORP PENSTOCK | Idaho | Good | 2016 | 23.5 m | 520 |
| ANDERSON CANAL | Idaho | Fair | 1963 | 6.4 m | 520 |
| W.BR.SNAKE R.VALLEY CNL | Idaho | Fair | 1981 | 11.3 m | 520 |
| LOWER PAYETTE CANAL | Idaho | Fair | 1960 | 7.6 m | 510 |
| ROBISON CREEK | Idaho | Good | 1984 | 26.5 m | 510 |
| WARM RIVER | Idaho | Fair | 1984 | 29.9 m | 510 |
| SNAKE RIVER;FIRTH BRIDGE | Idaho | Fair | 2003 | 127.7 m | 510 |
| SALEM UNION CANAL | Idaho | Good | 2023 | 6.5 m | 510 |
| BEAR CREEK | Idaho | Good | 2019 | 16.2 m | 510 |
| BURGESS CANAL | Idaho | Poor | 1969 | 13.7 m | 510 |
| BURGESS CNL;SE.LABELLE | Idaho | Fair | 1969 | 11.3 m | 510 |
| CONSOLIDATED FARMERS CNL | Idaho | Fair | 1971 | 10.4 m | 510 |
| CHANNEL OF SPOKANE RIVER | Idaho | Good | 2000 | 8.5 m | 500 |
| PORTER CANAL | Idaho | Good | 2019 | 9.4 m | 500 |
| LITTLE CANYON CREEK | Idaho | Fair | 1987 | 8.2 m | 500 |
| EGIN CANAL | Idaho | Fair | 1957 | 8.5 m | 500 |
| FORT HALL MAIN CANAL | Idaho | Good | 2011 | 12.5 m | 500 |
| HARVEST SPG BLVD | Idaho | Good | 2022 | 10.4 m | 500 |
| RIDENBAUGH CANAL | Idaho | Good | 2005 | 8.8 m | 500 |
| W.BR.SNAKE R.VALLEY CNL | Idaho | Fair | 1981 | 12.8 m | 500 |
| GOLDEN GATE CANAL | Idaho | Fair | 1967 | 16.2 m | 500 |
| BIG LOST RIVER | Idaho | Fair | 1926 | 11.0 m | 500 |
| SIDEHILL CANAL | Idaho | Good | 2019 | 7.6 m | 500 |
| SETTLERS CANAL | Idaho | Fair | 1968 | 15.5 m | 500 |
| FARMERS UNION CANAL | Idaho | Fair | 1979 | 6.7 m | 500 |
| RESERVATION CANAL | Idaho | Fair | 1977 | 12.8 m | 500 |
| TRAIL CREEK | Idaho | Fair | 1995 | 15.2 m | 500 |
| TRAIL CREEK | Idaho | Fair | 1995 | 17.1 m | 500 |
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.