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 |
|---|---|---|---|---|---|
| BLACKFOOT RIVER | Idaho | Fair | 1974 | 17.7 m | 400 |
| CEDAR POINT CANAL | Idaho | Fair | 1969 | 8.2 m | 400 |
| DRYBED CANAL;E.GROVER BR | Idaho | Fair | 1977 | 29.5 m | 400 |
| BLACKFOOT CANAL | Idaho | Fair | 1971 | 11.0 m | 400 |
| LITTLE HOLE DRAW CREEK | Idaho | Fair | 2017 | 7.9 m | 400 |
| FARMERS COOP CANAL | Idaho | Fair | 1990 | 8.5 m | 400 |
| PORTER CANAL | Idaho | Fair | 2005 | 7.9 m | 400 |
| HIGH LINE CANAL | Idaho | Fair | 1965 | 14.3 m | 400 |
| PARADISE CREEK | Idaho | Good | 1975 | 12.2 m | 400 |
| SEBREE CANAL | Idaho | Good | 1980 | 10.7 m | 400 |
| NORTH INDIAN CREEK | Idaho | Fair | 1982 | 22.3 m | 400 |
| CLEARWATER R;LENORE BR. | Idaho | Poor | 1935 | 160.3 m | 400 |
| SQUAW CREEK | Idaho | Good | 2001 | 7.3 m | 400 |
| BANNOCK CREEK | Idaho | Fair | 1972 | 21.6 m | 395 |
| FAIRVIEW CANAL | Idaho | Fair | 1974 | 7.6 m | 390 |
| WARM SPRINGS CREEK | Idaho | Fair | 1991 | 14.0 m | 390 |
| RIDENBAUGH CANAL | Idaho | Fair | 1974 | 7.6 m | 390 |
| MASON CREEK | Idaho | Fair | 1992 | 9.4 m | 390 |
| S.FK.SALMON RIVER | Idaho | Good | 1960 | 33.5 m | 380 |
| REXBURG CANAL | Idaho | Fair | 1977 | 7.0 m | 380 |
| I 15 NB-SB;PAYNE RD.GS | Idaho | Fair | 1962 | 67.1 m | 380 |
| THOMPSON PARK BNRR OP | Idaho | Good | 2008 | 48.5 m | 380 |
| FARMERS COOP CANAL | Idaho | Fair | 1976 | 10.4 m | 380 |
| FARMERS FRIEND CANAL | Idaho | Fair | 1955 | 11.3 m | 380 |
| GREAT WESTERN CANAL | Idaho | Fair | 1961 | 21.6 m | 380 |
| DEER FLAT CANAL | Idaho | Fair | 1950 | 11.3 m | 370 |
| HIGH LINE CANAL | Idaho | Fair | 1964 | 23.5 m | 370 |
| WILLOW CREEK | Idaho | Poor | 1996 | 9.1 m | 370 |
| BOULDER CREEK | Idaho | Good | 1996 | 12.2 m | 370 |
| SQUAW CREEK | Idaho | Fair | 1909 | 157.6 m | 370 |
| BENEWAH CREEK | Idaho | Fair | 1977 | 12.2 m | 370 |
| BENEWAH CREEK | Idaho | Fair | 1977 | 12.2 m | 370 |
| BENEWAH CREEK | Idaho | Fair | 1977 | 12.2 m | 370 |
| ST JOE RIVER | Idaho | Fair | 1990 | 128.0 m | 370 |
| SLATE CREEK | Idaho | Fair | 1990 | 57.9 m | 370 |
| BIG DICK CREEK | Idaho | Poor | 1909 | 72.8 m | 370 |
| LOOP CREEK | Idaho | Fair | 1990 | 18.3 m | 370 |
| DEEP CREEK | Idaho | Fair | 1975 | 54.9 m | 370 |
| DEER FLAT CANAL | Idaho | Fair | 1997 | 15.5 m | 370 |
| DEER FLAT CANAL | Idaho | Fair | 1989 | 14.6 m | 370 |
| NOTUS CANAL | Idaho | Fair | 1965 | 7.0 m | 370 |
| BLACK CANYON CANAL | Idaho | Fair | 1950 | 30.2 m | 360 |
| LITTLE HANGMAN CRK | Idaho | Good | 2019 | 16.5 m | 360 |
| FARMERS COOP SEBREE CNL | Idaho | Fair | 1977 | 8.8 m | 360 |
| THORN CREEK | Idaho | Poor | 1955 | 21.9 m | 360 |
| J CANAL | Idaho | Fair | 1977 | 8.2 m | 360 |
| ANDERSON CANAL | Idaho | Fair | 1949 | 6.7 m | 360 |
| ST. ANTHONY CANAL | Idaho | Good | 2010 | 10.1 m | 360 |
| BUTTE ARM CANAL | Idaho | Fair | 1950 | 9.2 m | 360 |
| LAKE FORK CREEK | Idaho | Good | 2017 | 26.8 m | 360 |
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.