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 FRIEND CANAL | Idaho | Fair | 1979 | 10.4 m | 9,100 |
| N.BR.FALL RIVER CANAL | Idaho | Good | 1979 | 6.7 m | 9,100 |
| CALDWELL HIGHLINE CANAL | Idaho | Fair | 1950 | 7.3 m | 8,900 |
| I 84 EB-WB;W.JEROME IC | Idaho | Fair | 1966 | 93.9 m | 8,900 |
| I 84; MIDDLETON RD. GS | Idaho | Good | 2021 | 68.6 m | 8,900 |
| POWER CANAL | Idaho | Good | 1994 | 30.5 m | 8,800 |
| PAYETTE RIVER | Idaho | Good | 2021 | 113.4 m | 8,800 |
| CDA LAKE;BLUE CREEK BAY | Idaho | Fair | 1951 | 399.3 m | 8,750 |
| CDA LAKE;BLUE CREEK BAY | Idaho | Fair | 1972 | 402.0 m | 8,750 |
| B-4 CANAL | Idaho | Fair | 1963 | 11.0 m | 8,700 |
| CUB RIVER | Idaho | Fair | 2006 | 22.6 m | 8,600 |
| I 84; ROBINSON RD GS | Idaho | Fair | 2009 | 59.7 m | 8,600 |
| X CANAL | Idaho | Good | 1958 | 12.2 m | 8,500 |
| PINEHURST ROAD GS | Idaho | Fair | 2015 | 88.7 m | 8,500 |
| PINEHURST ROAD GS | Idaho | Good | 2014 | 92.7 m | 8,500 |
| FARMERS COOP CANAL | Idaho | Good | 1992 | 6.4 m | 8,400 |
| APRROACH RD;CATHOLIC CR. | Idaho | Good | 1968 | 40.2 m | 8,400 |
| NORTH FORK WILLOW CREEK | Idaho | Fair | 1963 | 7.6 m | 8,400 |
| RIDENBAUGH CANAL | Idaho | Good | 1984 | 10.1 m | 8,400 |
| FUTURE PED UNDERPASS | Idaho | Good | 2018 | 6.1 m | 8,400 |
| SAND CREEK | Idaho | Fair | 1966 | 17.1 m | 8,300 |
| S. FK. MICA CREEK | Idaho | Fair | 2003 | 79.9 m | 8,300 |
| MICA CREEK | Idaho | Fair | 1988 | 19.5 m | 8,300 |
| LANES GULCH | Idaho | Fair | 1981 | 8.8 m | 8,300 |
| CANNELL LN;MACHINE PASS | Idaho | Fair | 1980 | 7.3 m | 8,300 |
| PHYLLIS CANAL | Idaho | Fair | 1973 | 6.7 m | 8,300 |
| US 20;ST. ANTHONY IC | Idaho | Good | 1984 | 66.4 m | 8,300 |
| LITTLE WOOD RIVER | Idaho | Fair | 1924 | 7.9 m | 8,100 |
| SAND CREEK | Idaho | Good | 2016 | 15.2 m | 8,000 |
| I 84 EB-WB;S.WENDELL IC | Idaho | Fair | 1971 | 85.6 m | 8,000 |
| CALLS ROAD GS | Idaho | Good | 1979 | 7.3 m | 8,000 |
| PORTNEUF RIVER | Idaho | Fair | 1963 | 46.0 m | 8,000 |
| PORTNEUF RIVER | Idaho | Fair | 1963 | 46.0 m | 8,000 |
| STC 1758;UPRR;INKOM OP | Idaho | Fair | 1963 | 118.6 m | 8,000 |
| STC 1758;UPRR;INKOM OP | Idaho | Fair | 1963 | 121.6 m | 8,000 |
| I 15B;S.INKOM IC | Idaho | Fair | 1962 | 34.7 m | 8,000 |
| I 15B;S.INKOM IC | Idaho | Fair | 1962 | 34.7 m | 8,000 |
| INDIAN CREEK | Idaho | Good | 1978 | 9.8 m | 8,000 |
| FALL RIVER | Idaho | Fair | 1963 | 34.7 m | 8,000 |
| UPRR | Idaho | Good | 2020 | 76.5 m | 7,900 |
| CLEARWATER RIVER | Idaho | Fair | 1998 | 130.5 m | 7,800 |
| INDIAN CREEK | Idaho | Fair | 1940 | 36.3 m | 7,800 |
| ROBERTSON SLOUGH | Idaho | Good | 2017 | 14.0 m | 7,800 |
| PAYETTE RIVER | Idaho | Fair | 1971 | 114.6 m | 7,800 |
| UPRR;HORSESHOE BEND OP | Idaho | Fair | 1971 | 60.4 m | 7,800 |
| SETTLERS CANAL | Idaho | Good | 2007 | 20.4 m | 7,800 |
| N. FK. PAYETTE RIVER | Idaho | Fair | 2013 | 119.8 m | 7,800 |
| MAIN STREET GS | Idaho | Poor | 1962 | 37.8 m | 7,750 |
| I 15B;W.INKOM IC | Idaho | Poor | 1962 | 34.7 m | 7,750 |
| I 15B;W.INKOM IC | Idaho | Fair | 1962 | 34.7 m | 7,750 |
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.