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 |
|---|---|---|---|---|---|
| BEAVER CREEK | Idaho | Fair | 1965 | 19.2 m | 1,700 |
| BEAVER CREEK | Idaho | Fair | 1991 | 20.1 m | 1,700 |
| EAGLE ROCK CANAL | Idaho | Fair | 1991 | 14.0 m | 1,700 |
| ANDERSON CANAL | Idaho | Fair | 1941 | 6.7 m | 1,700 |
| LEMHI RIVER | Idaho | Good | 2001 | 26.8 m | 1,700 |
| LEMHI RIVER | Idaho | Good | 2001 | 26.8 m | 1,700 |
| DEER FLAT HIGH LINE CNL | Idaho | Good | 2017 | 6.7 m | 1,700 |
| LEWISVILLE CANAL | Idaho | Fair | 1969 | 6.7 m | 1,700 |
| RIDENBAUGH CANAL | Idaho | Fair | 1992 | 11.9 m | 1,700 |
| REXBURG CANAL | Idaho | Fair | 2009 | 8.2 m | 1,700 |
| INDIAN CREEK | Idaho | Good | 1980 | 7.3 m | 1,700 |
| ST MARIES R(MASHBURN BR) | Idaho | Fair | 1961 | 50.9 m | 1,700 |
| ST MARIES RR | Idaho | Fair | 1961 | 46.9 m | 1,700 |
| CANYON HILL LATERAL | Idaho | Fair | 2009 | 7.6 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 |
| I 84 EB-WB;IDAHOME RD GS | Idaho | Fair | 1967 | 95.1 m | 1,700 |
| S. FORK SNAKE RIVER | Idaho | Fair | 1999 | 123.1 m | 1,600 |
| I 90 EB-WB;ROSE LAKE IC | Idaho | Fair | 1962 | 63.7 m | 1,600 |
| E.FK.BEAR CREEK | Idaho | Good | 1982 | 19.8 m | 1,600 |
| I 86 EB-WB;ROCKLAND IC | Idaho | Fair | 1959 | 74.7 m | 1,600 |
| LEMHI RIVER | Idaho | Good | 2001 | 23.8 m | 1,600 |
| LEMHI RIVER | Idaho | Good | 2018 | 20.4 m | 1,600 |
| BADGER CREEK | Idaho | Good | 2016 | 18.6 m | 1,600 |
| I 84;EIGHTEENTH ST GS | Idaho | Fair | 1971 | 91.7 m | 1,600 |
| SNAKE R.;INDIAN COVE BR. | Idaho | Fair | 1967 | 171.3 m | 1,600 |
| BENNETT CREEK | Idaho | Good | 1998 | 9.4 m | 1,600 |
| I 84;MALTA-YALE RD IC | Idaho | Fair | 1963 | 67.1 m | 1,600 |
| RAWSON CANAL | Idaho | Fair | 1973 | 9.8 m | 1,600 |
| UPRR;REDROCK OVERPASS | Idaho | Good | 1995 | 63.4 m | 1,600 |
| SALEM UNION CANAL | Idaho | Fair | 2002 | 7.0 m | 1,600 |
| I 84;CANYON CREEK RD GS | Idaho | Fair | 1971 | 82.0 m | 1,600 |
| S. FORK SNAKE RIVER | Idaho | Fair | 1999 | 49.7 m | 1,600 |
| NEW YORK CANAL | Idaho | Good | 1997 | 27.1 m | 1,600 |
| U CANAL | Idaho | Fair | 1954 | 17.4 m | 1,600 |
| I 84;BLACK CANYON RD IC | Idaho | Fair | 1960 | 64.6 m | 1,600 |
| FARR LATERAL CANAL | Idaho | Fair | 1993 | 7.0 m | 1,600 |
| SNAKE RIVER;GRANDVIEW BR | Idaho | Fair | 1970 | 187.1 m | 1,600 |
| MIDDLE LINE CANAL | Idaho | Good | 1994 | 7.6 m | 1,600 |
| DRY BED CANAL | Idaho | Fair | 1965 | 28.3 m | 1,600 |
| HARRISON CANAL | Idaho | Good | 1982 | 12.8 m | 1,600 |
| IDAHO CANAL | Idaho | Fair | 2012 | 17.7 m | 1,600 |
| MORA CANAL | Idaho | Fair | 1981 | 21.3 m | 1,600 |
| MORA CANAL | Idaho | Fair | 1973 | 21.3 m | 1,500 |
| EGIN CANAL | Idaho | Good | 2011 | 9.8 m | 1,500 |
| TETON CREEK | Idaho | Good | 2004 | 6.7 m | 1,500 |
| LAKE FORK CREEK | Idaho | Fair | 1973 | 18.3 m | 1,500 |
| I 15 NB-SB;VIRGINIA IC | Idaho | Fair | 1971 | 118.9 m | 1,500 |
| LAKE FORK CANAL | Idaho | Fair | 1996 | 7.0 m | 1,500 |
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.