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 |
|---|---|---|---|---|---|
| CHIMNEY CR.;SHEEP CR. | Idaho | Fair | 1961 | 8.5 m | 1,900 |
| CORRAL CREEK | Idaho | Fair | 1969 | 10.1 m | 1,900 |
| THREE MILE CREEK | Idaho | Fair | 1969 | 9.4 m | 1,900 |
| W.FK.SOLDIER CREEK | Idaho | Fair | 1958 | 7.3 m | 1,900 |
| SOLDIER CREEK | Idaho | Fair | 1958 | 7.3 m | 1,900 |
| E.FK.SOLDIER CREEK | Idaho | Fair | 1958 | 7.3 m | 1,900 |
| JOHNSON CREEK | Idaho | Fair | 1958 | 7.3 m | 1,900 |
| KNOWLTON CREEK | Idaho | Fair | 1958 | 9.1 m | 1,900 |
| SOLDIER CREEK | Idaho | Good | 2017 | 7.6 m | 1,900 |
| S.FK.COEUR DALENE RIVER | Idaho | Poor | 1971 | 51.2 m | 1,900 |
| C CANAL | Idaho | Fair | 1965 | 19.2 m | 1,900 |
| I 15 SB-NB;S.SHELLY IC | Idaho | Fair | 1962 | 67.1 m | 1,900 |
| SALEM UNION CANAL | Idaho | Fair | 1986 | 10.4 m | 1,900 |
| S CANAL | Idaho | Fair | 1999 | 13.1 m | 1,900 |
| DISTRICT CANAL | Idaho | Fair | 1998 | 8.8 m | 1,900 |
| SAND CREEK | Idaho | Fair | 1952 | 7.3 m | 1,900 |
| RIDENBAUGH HIGH LINE CNL | Idaho | Good | 1992 | 6.7 m | 1,900 |
| SALEM CANAL | Idaho | Good | 2001 | 19.2 m | 1,900 |
| WHISKEY CREEK;STANTON BR | Idaho | Good | 1954 | 7.0 m | 1,900 |
| SPENCER ROAD IC | Idaho | Fair | 1969 | 34.7 m | 1,850 |
| SPENCER ROAD IC | Idaho | Fair | 1969 | 34.7 m | 1,850 |
| PHYLLIS CANAL | Idaho | Good | 2005 | 7.9 m | 1,800 |
| I 15 NB-SB; DUBOIS IC | Idaho | Good | 2012 | 70.7 m | 1,800 |
| NEW YORK CANAL | Idaho | Fair | 1972 | 33.2 m | 1,800 |
| PRIEST RIVER | Idaho | Fair | 1951 | 68.6 m | 1,800 |
| FALL RIVER | Idaho | Fair | 1963 | 67.1 m | 1,800 |
| WILLOW CREEK | Idaho | Good | 1987 | 7.9 m | 1,800 |
| PAYETTE RIVER | Idaho | Fair | 1976 | 144.2 m | 1,800 |
| IN&P RR | Idaho | Good | 2018 | 24.1 m | 1,800 |
| NOBLE CANAL | Idaho | Fair | 1956 | 10.4 m | 1,800 |
| ST CHARLES CREEK | Idaho | Good | 2013 | 26.5 m | 1,800 |
| FARMERS UNION CANAL | Idaho | Fair | 1977 | 9.1 m | 1,800 |
| SNAKE R.;FERRY BUTTE BR. | Idaho | Fair | 1964 | 147.2 m | 1,800 |
| FARMERS COOP CANAL | Idaho | Fair | 1960 | 7.0 m | 1,800 |
| BIG WOOD R;W.BELLEVUE BR | Idaho | Fair | 1974 | 34.1 m | 1,800 |
| J CANAL | Idaho | Fair | 1975 | 11.9 m | 1,800 |
| GRANDVIEW IRRIG.DIST.CNL | Idaho | Fair | 1970 | 7.6 m | 1,800 |
| CO.RD.;STODDARD CREEK IC | Idaho | Fair | 1969 | 32.6 m | 1,750 |
| CO.RD.;STODDARD CREEK IC | Idaho | Poor | 1969 | 32.6 m | 1,750 |
| HUMPHREY ROAD IC | Idaho | Fair | 1966 | 34.7 m | 1,750 |
| HUMPHREY ROAD IC | Idaho | Fair | 1991 | 26.2 m | 1,750 |
| ST MARIES RIVER | Idaho | Fair | 1977 | 73.8 m | 1,700 |
| FOURTH OF JULY CREEK | Idaho | Fair | 1962 | 28.3 m | 1,700 |
| HARRISON CANAL | Idaho | Fair | 1974 | 8.5 m | 1,700 |
| BLACKFOOT RIVER | Idaho | Fair | 1971 | 25.0 m | 1,700 |
| LONG ISLAND CANAL | Idaho | Fair | 1966 | 9.1 m | 1,700 |
| LEMHI RIVER | Idaho | Good | 2001 | 26.8 m | 1,700 |
| LEMHI RIVER | Idaho | Good | 2001 | 26.8 m | 1,700 |
| CANYON HILL LATERAL | Idaho | Fair | 2009 | 7.6 m | 1,700 |
| LEWISVILLE CANAL | Idaho | Fair | 1969 | 6.7 m | 1,700 |
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.