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 |
|---|---|---|---|---|---|
| HAYDEN CREEK | Idaho | Fair | 1987 | 10.7 m | 2,500 |
| CANAL | Idaho | Fair | 1985 | 9.8 m | 2,500 |
| BLACKFOOT CANAL | Idaho | Fair | 2006 | 15.5 m | 2,500 |
| RESERVATION CANAL | Idaho | Fair | 2006 | 15.5 m | 2,500 |
| I 90 EB-WB;MCGUIRE RD.GS | Idaho | Fair | 1976 | 98.8 m | 2,500 |
| US 26 NB-SB;S.BLVD GS | Idaho | Good | 2001 | 52.4 m | 2,400 |
| WILLOW CREEK | Idaho | Fair | 1989 | 8.2 m | 2,400 |
| CANYON CANAL | Idaho | Fair | 2003 | 7.9 m | 2,400 |
| MILL SLOUGH | Idaho | Fair | 1995 | 8.5 m | 2,400 |
| B-4 CANAL | Idaho | Fair | 1941 | 12.5 m | 2,400 |
| I 90 EB-WB;9TH ST GS | Idaho | Fair | 1960 | 69.8 m | 2,400 |
| LOWER PAYETTE CANAL | Idaho | Fair | 1993 | 36.0 m | 2,400 |
| PAYETTE RIVER SLOUGH | Idaho | Fair | 1993 | 58.2 m | 2,400 |
| SAND CREEK | Idaho | Good | 1977 | 13.7 m | 2,400 |
| PINE CREEK | Idaho | Fair | 1967 | 36.9 m | 2,400 |
| NEW YORK CANAL | Idaho | Fair | 1977 | 24.1 m | 2,400 |
| BIG WOOD RIVER | Idaho | Fair | 1991 | 29.6 m | 2,400 |
| HOWARD CREEK | Idaho | Fair | 2005 | 12.5 m | 2,400 |
| TARGHEE CREEK | Idaho | Fair | 2006 | 25.3 m | 2,400 |
| J COULEE CANAL | Idaho | Fair | 2014 | 7.3 m | 2,400 |
| C CANAL | Idaho | Fair | 1979 | 7.0 m | 2,300 |
| ARROW GULCH | Idaho | Fair | 1968 | 19.8 m | 2,300 |
| LITTLE POTLATCH CREEK | Idaho | Good | 1988 | 18.6 m | 2,300 |
| M. FK. POTLATCH CREEK | Idaho | Good | 2021 | 32.3 m | 2,300 |
| NEW YORK CANAL | Idaho | Fair | 1981 | 16.2 m | 2,300 |
| I 90 EB-WB;KINGSTON IC | Idaho | Good | 2018 | 52.7 m | 2,300 |
| US 20;SH 33 SPUR IC | Idaho | Fair | 2001 | 73.5 m | 2,300 |
| LITTLE WOOD RIVER | Idaho | Fair | 1987 | 16.5 m | 2,300 |
| BIG LOST RIVER | Idaho | Fair | 1958 | 16.2 m | 2,300 |
| FARMERS COOP CANAL | Idaho | Fair | 1960 | 7.0 m | 2,300 |
| I 86;WEST POCATELLO IC | Idaho | Fair | 1968 | 86.3 m | 2,300 |
| LOWER PAYETTE DITCH | Idaho | Good | 2009 | 7.9 m | 2,300 |
| LOW LINE CANAL | Idaho | Fair | 1977 | 16.2 m | 2,300 |
| GRAND TETON CANAL | Idaho | Fair | 2005 | 7.6 m | 2,300 |
| CASCADE RESERVOIR | Idaho | Fair | 1975 | 49.4 m | 2,300 |
| S.FK.CDA R;I-90B ARCH | Idaho | Poor | 1940 | 28.7 m | 2,300 |
| WEST CACHE CANAL | Idaho | Good | 1993 | 7.3 m | 2,300 |
| FARMERS FRIEND CANAL | Idaho | Fair | 1950 | 6.7 m | 2,300 |
| GARDEN CREEK | Idaho | Fair | 1941 | 6.4 m | 2,300 |
| WEISER RIVER | Idaho | Fair | 2020 | 82.9 m | 2,300 |
| WEISER RIVER;TAMARACK BR | Idaho | Good | 2017 | 18.9 m | 2,300 |
| PHYLLIS CANAL | Idaho | Fair | 1978 | 8.2 m | 2,300 |
| THORN CREEK | Idaho | Fair | 1939 | 7.0 m | 2,300 |
| M.FK.PAYETTE R;CROUCH BR | Idaho | Good | 2013 | 48.8 m | 2,300 |
| MILL SLOUGH | Idaho | Fair | 1999 | 9.8 m | 2,300 |
| N CANAL | Idaho | Fair | 1973 | 8.5 m | 2,300 |
| I 15;FERRY BUTTE ROAD GS | Idaho | Fair | 1959 | 86.0 m | 2,250 |
| S.FK.COEUR DALENE RIVER | Idaho | Good | 2016 | 64.0 m | 2,200 |
| ENTERPRIZE CANAL | Idaho | Good | 2015 | 6.1 m | 2,200 |
| ANDERSON CANAL | Idaho | Fair | 1969 | 12.8 m | 2,200 |
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.