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 |
|---|---|---|---|---|---|
| ELEC LGHT SWITCH LATERAL | Idaho | Fair | 1970 | 7.6 m | 730 |
| SAND CREEK | Idaho | Fair | 1981 | 10.4 m | 730 |
| CALDWELL CANAL | Idaho | Good | 2010 | 6.7 m | 720 |
| US 95 SPUR;COMMERCIAL UP | Idaho | Fair | 1960 | 48.5 m | 720 |
| SOUTHSIDE CANAL | Idaho | Fair | 1998 | 22.3 m | 720 |
| SAND CREEK | Idaho | Fair | 1980 | 12.2 m | 710 |
| TETON ISLAND CANAL | Idaho | Fair | 1959 | 7.9 m | 710 |
| 702-A CANAL | Idaho | Good | 1976 | 7.0 m | 710 |
| S.FK.TETON R;NE REXBURG | Idaho | Fair | 1980 | 29.3 m | 710 |
| WHITEBIRD CREEK | Idaho | Good | 1973 | 19.2 m | 710 |
| FARMERS COOP CANAL | Idaho | Fair | 1955 | 8.5 m | 710 |
| BIG COTTONWOOD CREEK | Idaho | Fair | 1970 | 11.3 m | 710 |
| ABERDEEN SPRINGFIELD CNL | Idaho | Fair | 1990 | 28.0 m | 710 |
| LITTLE HANGMAN CREEK | Idaho | Fair | 1972 | 15.5 m | 700 |
| HYNDMAN CREEK | Idaho | Good | 1994 | 9.8 m | 700 |
| D LINE CANAL | Idaho | Good | 2000 | 11.6 m | 700 |
| RABBIT CREEK | Idaho | Fair | 1956 | 36.6 m | 700 |
| BIG WOOD RIVER | Idaho | Fair | 1958 | 36.6 m | 700 |
| POTLATCH RIVER | Idaho | Good | 1995 | 44.2 m | 700 |
| N.FK.TETON RIVER | Idaho | Good | 1976 | 28.0 m | 700 |
| D LINE CANAL | Idaho | Fair | 1975 | 11.6 m | 700 |
| BIG WOOD RIVER | Idaho | Good | 1985 | 31.4 m | 700 |
| D LINE CANAL | Idaho | Good | 2000 | 15.2 m | 700 |
| N.FK. LEIGH CREEK | Idaho | Good | 1977 | 8.5 m | 690 |
| ROCK CLIFF GINI HALF BRD | Idaho | Fair | 1991 | 35.1 m | 690 |
| DEADWOOD RIVER | Idaho | Good | 1985 | 56.1 m | 690 |
| S.FK.PALOUSE RIVER | Idaho | Good | 2018 | 14.9 m | 690 |
| PORTNEUF RIVER | Idaho | Good | 2009 | 25.6 m | 690 |
| CEDAR DRAW | Idaho | Fair | 1968 | 10.4 m | 690 |
| BIRCH CREEK | Idaho | Fair | 1972 | 9.8 m | 680 |
| BIRCH CREEK | Idaho | Fair | 1972 | 7.3 m | 680 |
| BIRCH CREEK | Idaho | Fair | 1972 | 9.8 m | 680 |
| COEUR DALENE RIVER | Idaho | Poor | 1936 | 100.0 m | 680 |
| UPRR;N.HAMMETT RR OP | Idaho | Fair | 1973 | 58.5 m | 680 |
| GREAT WESTERN CANAL | Idaho | Fair | 1940 | 9.8 m | 680 |
| VALLEY CREEK | Idaho | Fair | 1977 | 33.8 m | 680 |
| BASIN CREEK | Idaho | Fair | 2007 | 15.5 m | 680 |
| YANKEE FK OF SALMON RIVR | Idaho | Poor | 1934 | 61.0 m | 680 |
| SALMON RIVER;SLATE CR BR | Idaho | Good | 2011 | 137.5 m | 680 |
| SALMON RIVER; W. CLAYTON | Idaho | Good | 2008 | 90.8 m | 680 |
| EAST LATERAL CANAL | Idaho | Fair | 1956 | 7.0 m | 680 |
| N.FK.SALMON RIVER | Idaho | Fair | 1955 | 18.0 m | 670 |
| BURGESS CANAL | Idaho | Good | 1962 | 6.4 m | 670 |
| N. FORK SALMON RIVER | Idaho | Good | 1997 | 7.3 m | 670 |
| BUTTE ARM CANAL | Idaho | Fair | 1956 | 11.3 m | 670 |
| NEW YORK CANAL | Idaho | Fair | 2004 | 31.4 m | 670 |
| BUTTE ARM CANAL | Idaho | Good | 2023 | 12.8 m | 670 |
| N. FORK SALMON RIVER | Idaho | Good | 1997 | 7.0 m | 670 |
| N. FORK SALMON RIVER | Idaho | Good | 1997 | 7.3 m | 670 |
| LOW LINE CANAL | Idaho | Good | 2011 | 20.7 m | 670 |
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.