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 |
|---|---|---|---|---|---|
| I 15 NB-SB;WOODVILLE GS | Idaho | Fair | 1962 | 77.4 m | 130 |
| COW CREEK | Idaho | Fair | 1930 | 6.7 m | 130 |
| DRY CREEK | Idaho | Good | 2021 | 19.5 m | 130 |
| GREAT WESTERN CANAL | Idaho | Good | 2021 | 22.6 m | 130 |
| T.F.NORTHSIDE MAIN CNL | Idaho | Fair | 1969 | 10.1 m | 130 |
| SALEM CANAL | Idaho | Good | 2017 | 13.4 m | 130 |
| BOYER SLOUGH;SE.KOOTENAI | Idaho | Fair | 1969 | 17.4 m | 130 |
| BIG WILLOW CREEK | Idaho | Poor | 1962 | 21.6 m | 130 |
| I 84;EIRR;300 W GS | Idaho | Fair | 1971 | 118.3 m | 130 |
| BIG WILLOW CREEK | Idaho | Good | 1988 | 19.8 m | 130 |
| DEEP CREEK | Idaho | Good | 2018 | 24.4 m | 130 |
| TWENTY MILE CREEK | Idaho | Good | 2007 | 12.2 m | 130 |
| WEISER RIVER | Idaho | Fair | 1998 | 39.6 m | 130 |
| LAWYER CREEK;SW.KAMIAH B | Idaho | Fair | 1950 | 25.3 m | 130 |
| RATTLESNAKE CREEK | Idaho | Good | 2018 | 8.5 m | 130 |
| FALL CREEK | Idaho | Good | 2014 | 15.9 m | 130 |
| SMITH CREEK | Idaho | Fair | 1966 | 8.2 m | 130 |
| M.FK.BOISE RIVER | Idaho | Fair | 1954 | 56.4 m | 130 |
| SQUAW CREEK | Idaho | Fair | 2006 | 28.0 m | 130 |
| A LINE CANAL | Idaho | Fair | 1979 | 7.0 m | 130 |
| Main Northside Canal | Idaho | Good | 1980 | 24.5 m | 120 |
| SKULL CREEK | Idaho | Fair | 1967 | 29.3 m | 120 |
| RED RIVER | Idaho | Fair | 1958 | 12.5 m | 120 |
| MOYIE RIVER;MEADOW CREEK | Idaho | Fair | 1928 | 62.2 m | 120 |
| MOYIE RIVER(MCDOUGAL BR) | Idaho | Fair | 1991 | 59.7 m | 120 |
| MOYIE RIVER;RUTLEDGE CR. | Idaho | Fair | 2008 | 68.0 m | 120 |
| MOYIE RIVER;SINCLAIR BR. | Idaho | Fair | 1975 | 59.4 m | 120 |
| E. FK. EAGLE CREEK | Idaho | Fair | 1995 | 23.8 m | 120 |
| RAINBOW CANAL | Idaho | Good | 1996 | 37.2 m | 120 |
| QUARTZ CREEK | Idaho | Good | 1965 | 31.4 m | 120 |
| CORBETT SLOUGH CANAL | Idaho | Fair | 1965 | 7.3 m | 120 |
| HIGH LINE CANAL | Idaho | Fair | 1970 | 12.8 m | 120 |
| CONSOLIDATED FARMERS CNL | Idaho | Good | 2018 | 14.3 m | 120 |
| LITTLE WOOD RIVER | Idaho | Fair | 1977 | 20.1 m | 120 |
| TRAIL CREEK | Idaho | Fair | 1952 | 9.8 m | 120 |
| J CANAL | Idaho | Fair | 1984 | 14.3 m | 120 |
| LEMHI RIVER | Idaho | Good | 1977 | 9.1 m | 120 |
| H CANAL;SE.BURLEY | Idaho | Fair | 1972 | 7.9 m | 120 |
| SALMON RIVER (ISLAND BR) | Idaho | Good | 2016 | 24.4 m | 120 |
| TEXAS SLOUGH | Idaho | Fair | 1938 | 12.2 m | 120 |
| S. BRANCH FALL RIVER CNL | Idaho | Good | 1997 | 8.5 m | 120 |
| FALL RIVER | Idaho | Fair | 1963 | 19.2 m | 120 |
| COTTONWOOD CREEK | Idaho | Fair | 1993 | 15.8 m | 120 |
| CROSSCUT CANAL | Idaho | Fair | 1937 | 9.1 m | 120 |
| FARMERS UNION CANAL | Idaho | Fair | 1979 | 6.7 m | 120 |
| TRAPPER CREEK | Idaho | Good | 1965 | 7.3 m | 120 |
| S.FK.RED RIVER | Idaho | Good | 1965 | 10.4 m | 120 |
| RIVERSIDE CANAL | Idaho | Fair | 1974 | 9.1 m | 120 |
| MORA CANAL | Idaho | Fair | 1995 | 12.2 m | 120 |
| DEER FLAT HIGH LINE | Idaho | Good | 2013 | 7.6 m | 120 |
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.