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 |
|---|---|---|---|---|---|
| C CANAL | Idaho | Good | 1966 | 9.1 m | 11,500 |
| SH 25;KASOTA RD.IC | Idaho | Fair | 1966 | 34.7 m | 11,500 |
| STC2744;MURTAUGH RD GS | Idaho | Good | 1966 | 35.7 m | 11,500 |
| SH 25;KASOTA RD.IC | Idaho | Fair | 1966 | 34.7 m | 11,500 |
| ROCK CREEK | Idaho | Poor | 1959 | 11.9 m | 11,500 |
| CO.RD.;HORSE BUTTE GS | Idaho | Fair | 1963 | 8.2 m | 11,500 |
| PARADISE CREEK | Idaho | Fair | 2000 | 8.2 m | 11,500 |
| MAIN NORTHSIDE CANAL | Idaho | Fair | 1966 | 61.6 m | 11,500 |
| MILNER GOODING CANAL | Idaho | Fair | 1966 | 33.4 m | 11,500 |
| MAIN NORTHSIDE CANAL | Idaho | Fair | 1966 | 61.6 m | 11,500 |
| CRESTVIEW RD.GS | Idaho | Fair | 1966 | 34.7 m | 11,500 |
| MILNER GOODING CANAL | Idaho | Fair | 1966 | 24.8 m | 11,500 |
| WALLING DITCH | Idaho | Good | 2009 | 31.7 m | 11,500 |
| BNRR;WESTMOND BRIDGE | Idaho | Good | 2004 | 39.6 m | 11,500 |
| COCOLALLA CREEK | Idaho | Fair | 1950 | 6.7 m | 11,500 |
| COCOLALLA CREEK | Idaho | Good | 2017 | 8.5 m | 11,500 |
| CRESTVIEW RD.GS | Idaho | Fair | 1966 | 34.7 m | 11,500 |
| I 84;KARCHER ROAD GS | Idaho | Good | 2019 | 84.3 m | 11,500 |
| MIDDLETON CANAL | Idaho | Fair | 1959 | 9.1 m | 11,500 |
| SAND CREEK | Idaho | Good | 2017 | 32.3 m | 11,500 |
| BOISE RIVER | Idaho | Fair | 2009 | 141.4 m | 11,500 |
| HENRYS FK. SNAKE RIVER | Idaho | Fair | 1965 | 31.7 m | 11,500 |
| EGIN CANAL | Idaho | Good | 1975 | 12.8 m | 11,500 |
| STC2744;MURTAUGH RD GS | Idaho | Good | 1966 | 35.7 m | 11,500 |
| TETON CREEK | Idaho | Fair | 1979 | 16.5 m | 11,500 |
| N CANAL | Idaho | Good | 2021 | 15.2 m | 11,500 |
| FARMERS COOP CANAL | Idaho | Good | 1992 | 12.5 m | 11,500 |
| C CANAL | Idaho | Good | 1966 | 10.7 m | 11,500 |
| S.FK.COEUR DALENE RIVER | Idaho | Fair | 1987 | 46.6 m | 11,000 |
| NOTUS CANAL | Idaho | Good | 2023 | 29.9 m | 11,000 |
| BOISE RIVER | Idaho | Good | 2004 | 132.0 m | 11,000 |
| CROSSROAD BD;W.WALLACE I | Idaho | Fair | 1987 | 54.9 m | 11,000 |
| JUNIPER RD;GS NO.1 | Idaho | Fair | 1968 | 7.3 m | 11,000 |
| JUNIPER RD;GS NO.2 | Idaho | Fair | 1968 | 7.3 m | 11,000 |
| S COULEE CANAL | Idaho | Fair | 1996 | 7.0 m | 11,000 |
| SHODDE ROAD GS | Idaho | Fair | 1966 | 34.7 m | 11,000 |
| SHODDE ROAD GS | Idaho | Fair | 1966 | 34.7 m | 11,000 |
| UPRR;GOULD ST OP | Idaho | Fair | 1982 | 80.8 m | 11,000 |
| FIRST AVE;GOULD ST OP | Idaho | Fair | 1982 | 21.3 m | 11,000 |
| US 12;US 12-95 IC | Idaho | Fair | 1964 | 66.4 m | 11,000 |
| PHYLLIS CANAL | Idaho | Fair | 1967 | 13.1 m | 11,000 |
| STC 5766;SILVERTON IC | Idaho | Fair | 1978 | 44.8 m | 11,000 |
| S.FK.CDA R;FR.RD. | Idaho | Fair | 1978 | 173.4 m | 11,000 |
| HARRISON AVE;GOULD ST OP | Idaho | Fair | 1982 | 21.3 m | 11,000 |
| I 84 EBL WBL | Idaho | Good | 2022 | 82.9 m | 11,000 |
| SNAKE RIVER;HOMEDALE BR. | Idaho | Fair | 1969 | 209.4 m | 11,000 |
| I 90 EB-WB;SCHNEIDMILLER | Idaho | Good | 2015 | 101.8 m | 11,000 |
| FARMERS COOP CANAL | Idaho | Fair | 1964 | 43.9 m | 11,000 |
| I 15;SUNNYSIDE RD IC | Idaho | Good | 2007 | 99.7 m | 11,000 |
| BOISE RIVER(STAR BRIDGE) | Idaho | Fair | 1982 | 115.2 m | 11,000 |
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.