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 |
|---|---|---|---|---|---|
| FARMERS COOP CANAL | Idaho | Fair | 1940 | 7.9 m | 1,300 |
| S.FK.COEUR DALENE RIVER | Idaho | Fair | 1983 | 34.7 m | 1,300 |
| RAPID CREEK | Idaho | Good | 2015 | 10.4 m | 1,300 |
| PHYLLIS CANAL | Idaho | Fair | 1974 | 7.9 m | 1,300 |
| I 15; ROSE ROAD IC | Idaho | Good | 2020 | 72.2 m | 1,300 |
| PACK RIVER | Idaho | Fair | 1951 | 37.2 m | 1,300 |
| A CANAL | Idaho | Fair | 1973 | 13.4 m | 1,300 |
| SAND CREEK | Idaho | Fair | 1953 | 22.9 m | 1,300 |
| MIDDLETON CANAL | Idaho | Fair | 1967 | 7.6 m | 1,300 |
| T.F.NORTHSIDE MAIN CNL | Idaho | Fair | 1930 | 13.4 m | 1,300 |
| SAND CREEK | Idaho | Fair | 1962 | 12.8 m | 1,300 |
| SWAUGER SLOUGH | Idaho | Fair | 1940 | 7.0 m | 1,220 |
| IDAHO CANAL | Idaho | Fair | 1956 | 35.4 m | 1,200 |
| NEW YORK CANAL | Idaho | Good | 2013 | 37.5 m | 1,200 |
| BUTCHER CREEK | Idaho | Good | 2019 | 9.8 m | 1,200 |
| CLEAR CREEK;AT LOWMAN | Idaho | Fair | 1939 | 45.7 m | 1,200 |
| FIVE MILE CREEK | Idaho | Fair | 2011 | 39.0 m | 1,200 |
| S.FK.PAYETTE RIVER | Idaho | Fair | 1970 | 62.8 m | 1,200 |
| S.FK.PAYETTE RIVER | Idaho | Good | 1970 | 53.3 m | 1,200 |
| WARM SPRINGS CREEK | Idaho | Fair | 1956 | 45.7 m | 1,200 |
| CHAPMAN CREEK | Idaho | Good | 1988 | 51.8 m | 1,200 |
| L CANAL | Idaho | Fair | 1933 | 12.8 m | 1,200 |
| MORA CANAL | Idaho | Fair | 1984 | 9.4 m | 1,200 |
| I 84;NEW PLYMOUTH IC | Idaho | Fair | 1960 | 70.4 m | 1,200 |
| TWIN LAKES CANAL | Idaho | Fair | 1958 | 7.9 m | 1,200 |
| FIVE MILE CREEK | Idaho | Fair | 1990 | 6.7 m | 1,200 |
| RIDENBAUGH CANAL | Idaho | Good | 1992 | 9.8 m | 1,200 |
| MORA CANAL | Idaho | Fair | 1984 | 7.6 m | 1,200 |
| LOW LINE CANAL | Idaho | Fair | 1956 | 23.8 m | 1,200 |
| ST CHARLES CR.;S.BRANCH | Idaho | Fair | 1956 | 9.1 m | 1,200 |
| THOMAS FORK CREEK | Idaho | Good | 1993 | 23.8 m | 1,200 |
| GREAT WESTERN CANAL | Idaho | Fair | 1960 | 25.0 m | 1,200 |
| US 95 SPUR; WEISER IC | Idaho | Fair | 1960 | 46.6 m | 1,200 |
| DEER FLAT CANAL | Idaho | Good | 1998 | 9.8 m | 1,200 |
| BLACKS CREEK | Idaho | Fair | 1968 | 9.8 m | 1,200 |
| MOON GULCH | Idaho | Good | 2024 | 11.0 m | 1,200 |
| BEAR LAKE OUTLET CANAL | Idaho | Fair | 1968 | 26.2 m | 1,200 |
| RAINBOW CANAL;MUD LAKE | Idaho | Fair | 1968 | 21.9 m | 1,200 |
| RAWSON CANAL | Idaho | Fair | 1970 | 9.8 m | 1,200 |
| BNRR;KOOTENAI OP | Idaho | Fair | 1994 | 29.0 m | 1,200 |
| LOW LINE CANAL | Idaho | Good | 2010 | 30.2 m | 1,200 |
| STC 5752;N.FK.CDA RIVER | Idaho | Poor | 1930 | 80.5 m | 1,200 |
| SALMON RIVER; SHOUP BR | Idaho | Good | 2018 | 81.4 m | 1,200 |
| CEDAR DRAW | Idaho | Fair | 1940 | 11.0 m | 1,200 |
| REXBURG CANAL | Idaho | Fair | 1980 | 7.6 m | 1,200 |
| PORTNEUF RIVER | Idaho | Poor | 1962 | 13.1 m | 1,200 |
| MILNER GOODING CANAL | Idaho | Fair | 1965 | 15.2 m | 1,200 |
| A-5 CANAL | Idaho | Good | 2020 | 11.0 m | 1,200 |
| HENRYS LAKE OUTLET | Idaho | Fair | 1992 | 21.6 m | 1,200 |
| TRAIL CREEK;NAPLES BR | Idaho | Fair | 1964 | 6.1 m | 1,200 |
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.