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 |
|---|---|---|---|---|---|
| BIG LOST RIVER | Idaho | Fair | 1978 | 17.4 m | 50 |
| UPRR;N.SPENCER RR OP | Idaho | Poor | 1936 | 90.2 m | 50 |
| CAMAS CREEK | Idaho | Poor | 1953 | 8.2 m | 50 |
| CAMAS CREEK | Idaho | Poor | 1981 | 9.8 m | 50 |
| PLEASANT VALLEY CREEK | Idaho | Fair | 1934 | 140.2 m | 50 |
| CDA RIVER | Idaho | Fair | 1954 | 14.9 m | 50 |
| BIG LOST RIVER | Idaho | Fair | 1977 | 21.3 m | 50 |
| TEPEE CREEK | Idaho | Fair | 1974 | 12.3 m | 50 |
| BIG LOST RIVER | Idaho | Good | 2010 | 26.5 m | 50 |
| SLATE CREEK | Idaho | Poor | 1953 | 8.7 m | 50 |
| N.F. HAYDEN CR | Idaho | Fair | 1953 | 7.5 m | 50 |
| HAYDEN CREEK | Idaho | Fair | 1953 | 8.2 m | 50 |
| S. LAVERNE CR | Idaho | Fair | 1973 | 8.3 m | 50 |
| INDEPENDENT CANAL | Idaho | Fair | 1973 | 13.1 m | 50 |
| FALL RIVER CANAL | Idaho | Fair | 1976 | 9.8 m | 50 |
| FALL RIVER | Idaho | Fair | 1977 | 36.6 m | 50 |
| LEIBERG CREEK | Idaho | Fair | 1959 | 8.7 m | 50 |
| BIG ELK CREEK | Idaho | Fair | 1955 | 8.7 m | 50 |
| N.F. CDA RIVER | Idaho | Poor | 1950 | 45.6 m | 50 |
| TRAIL CREEK | Idaho | Fair | 1984 | 18.3 m | 50 |
| COPPER CREEK | Idaho | Fair | 1975 | 9.9 m | 50 |
| LONG ISLAND CANAL | Idaho | Fair | 1969 | 7.3 m | 50 |
| RED RIVER | Idaho | Fair | 1960 | 15.3 m | 50 |
| MEADOW CREEK | Idaho | Fair | 1991 | 11.0 m | 50 |
| FRENCH CREEK | Idaho | Poor | 1957 | 9.9 m | 50 |
| COPPER CREEK | Idaho | Fair | 1975 | 12.7 m | 50 |
| RAFT RIVER | Idaho | Good | 2014 | 14.6 m | 50 |
| OWSLEY CANAL;SE TERRETON | Idaho | Good | 1976 | 9.1 m | 50 |
| MALLARD CREEK | Idaho | Fair | 1992 | 12.2 m | 50 |
| MALLARD CREEK | Idaho | Fair | 1992 | 9.9 m | 50 |
| TEPEE CREEK | Idaho | Fair | 1976 | 12.3 m | 50 |
| WILDHORSE CREEK | Idaho | Good | 1955 | 11.0 m | 50 |
| BURNT CABIN CR | Idaho | Fair | 1948 | 8.1 m | 50 |
| RED RIVER | Idaho | Fair | 1965 | 12.2 m | 50 |
| SALMON RIVER;IRON CK BR | Idaho | Fair | 1965 | 70.1 m | 50 |
| IRON CREEK | Idaho | Good | 2010 | 11.0 m | 50 |
| LEMHI RIVER | Idaho | Fair | 1968 | 13.4 m | 50 |
| LEMHI RIVER(HIGH BR) | Idaho | Fair | 1992 | 22.9 m | 50 |
| LEMHI RIVER(BAGLEY BR) | Idaho | Poor | 1991 | 22.6 m | 50 |
| WIMPEY CREEK | Idaho | Good | 2013 | 13.4 m | 50 |
| PRATT CREEK (#1) | Idaho | Good | 2018 | 11.6 m | 50 |
| HOMESTEAD CREEK | Idaho | Good | 2018 | 19.1 m | 50 |
| HAWLEY CREEK | Idaho | Good | 2014 | 12.5 m | 50 |
| LEMHI RIVER | Idaho | Fair | 1965 | 7.9 m | 50 |
| N.F. CDA RIVER | Idaho | Fair | 1950 | 8.3 m | 50 |
| RUNNING CR | Idaho | Poor | 1956 | 9.9 m | 50 |
| WARM SLOUGH | Idaho | Fair | 1968 | 21.9 m | 50 |
| INDEPENDENT CANAL | Idaho | Fair | 2002 | 6.4 m | 50 |
| N.FK.TETON RIVER | Idaho | Good | 1977 | 18.3 m | 50 |
| CANYON CREEK | Idaho | Fair | 1975 | 8.2 m | 50 |
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.