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 |
|---|---|---|---|---|---|
| NEW YORK CANAL | Idaho | Good | 2013 | 37.5 m | 1,200 |
| W.FK.POTLATCH RIVER | Idaho | Fair | 1958 | 15.8 m | 1,100 |
| GOLDEN GATE LOW LINE CNL | Idaho | Fair | 1956 | 23.8 m | 1,100 |
| NEW YORK CANAL | Idaho | Fair | 1988 | 19.5 m | 1,100 |
| I 15;S 35TH W GS | Idaho | Fair | 1962 | 94.8 m | 1,100 |
| COTTONWOOD CREEK | Idaho | Fair | 1971 | 8.2 m | 1,100 |
| BEAR RIVER;CLEVELAND BR. | Idaho | Fair | 1953 | 85.3 m | 1,100 |
| TROUT CREEK | Idaho | Fair | 1957 | 7.3 m | 1,100 |
| HIGHLINE CANAL | Idaho | Good | 1977 | 18.6 m | 1,100 |
| ABERDEEN SPRINGFIELD CNL | Idaho | Good | 1977 | 21.9 m | 1,100 |
| I 84;ISAACS CANYON IC | Idaho | Good | 1997 | 82.8 m | 1,100 |
| REDFISH LAKE CREEK | Idaho | Fair | 1960 | 39.6 m | 1,100 |
| SALMON RIVER | Idaho | Fair | 1954 | 97.5 m | 1,100 |
| GINI CANAL | Idaho | Good | 1988 | 6.4 m | 1,100 |
| SALMON RIVER (WATTS BR.) | Idaho | Good | 2009 | 109.1 m | 1,100 |
| PAHSIMEROI RIVER | Idaho | Fair | 1938 | 34.4 m | 1,100 |
| N.FK.SALMON RIVER | Idaho | Fair | 1955 | 17.1 m | 1,100 |
| WILDLIFE UNDERPASS | Idaho | Fair | 2004 | 7.0 m | 1,100 |
| WILDLIFE UNDERPASS | Idaho | Fair | 2004 | 7.0 m | 1,100 |
| WILDLIFE UNDERPASS | Idaho | Fair | 2004 | 8.5 m | 1,100 |
| ROUND PRAIRIE CREEK | Idaho | Good | 2017 | 16.8 m | 1,100 |
| UPRR;S. EASTPORT OP | Idaho | Good | 2007 | 39.3 m | 1,100 |
| MOYIE R;LOWER EASTPORT | Idaho | Fair | 2007 | 86.0 m | 1,100 |
| I 15;BIRD REFUGE ROAD GS | Idaho | Fair | 1963 | 64.6 m | 1,100 |
| I 15 NB-SB;HAMER IC | Idaho | Fair | 1960 | 64.6 m | 1,100 |
| ABERDEEN SPRINGFIELD CNL | Idaho | Good | 2014 | 15.2 m | 1,100 |
| DEEP CREEK | Idaho | Fair | 1965 | 10.4 m | 1,100 |
| LOW LINE CANAL | Idaho | Fair | 1984 | 13.4 m | 1,100 |
| D-9A DRAIN | Idaho | Fair | 1979 | 8.2 m | 1,100 |
| SIDEHILL CANAL | Idaho | Fair | 1952 | 8.2 m | 1,100 |
| INDIAN CREEK | Idaho | Fair | 1973 | 8.5 m | 1,100 |
| BURGESS CANAL | Idaho | Fair | 1960 | 17.1 m | 1,100 |
| PORTNEUF RIVER | Idaho | Fair | 1940 | 13.4 m | 1,100 |
| DANSKIN CANAL | Idaho | Good | 1968 | 7.9 m | 1,100 |
| GOVERNMENT CREEK | Idaho | Good | 2010 | 10.4 m | 1,100 |
| HIGH LINE CANAL | Idaho | Fair | 1971 | 29.3 m | 1,100 |
| FARMERS FRIEND CANAL | Idaho | Fair | 2016 | 8.2 m | 1,100 |
| WILFORD CANAL | Idaho | Fair | 1977 | 7.0 m | 1,100 |
| EGIN CANAL | Idaho | Fair | 1986 | 19.2 m | 1,100 |
| RIDENBAUGH CANAL | Idaho | Good | 1988 | 6.4 m | 1,100 |
| DRY BED CANAL | Idaho | Fair | 1957 | 32.3 m | 1,100 |
| INDIAN CREEK | Idaho | Fair | 1989 | 53.3 m | 1,100 |
| S.FK.TETON RIVER | Idaho | Poor | 1977 | 45.7 m | 1,100 |
| N.FK.TETON RIVER | Idaho | Good | 1977 | 26.5 m | 1,100 |
| I 84;RIDGEWAY ROAD IC | Idaho | Fair | 1966 | 67.1 m | 1,000 |
| I 84;E.GLENNS FERRY IC | Idaho | Fair | 1976 | 86.0 m | 1,000 |
| I90;MULLAN TRAIL RD IC | Idaho | Fair | 1991 | 69.8 m | 1,000 |
| S.FK.COEUR DALENE RIVER | Idaho | Fair | 1963 | 14.0 m | 1,000 |
| S.FK.COEUR DALENE RIVER | Idaho | Good | 2014 | 14.9 m | 1,000 |
| BEAR RIVER;E.WESTON BR. | Idaho | Poor | 1956 | 53.3 m | 1,000 |
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.