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 |
|---|---|---|---|---|---|
| BOISE RIVER | Idaho | Fair | 1965 | 86.6 m | 14,000 |
| SELTICE WAY PED OP | Idaho | Fair | 2007 | 50.3 m | 14,000 |
| TEN MILE CREEK | Idaho | Good | 1990 | 13.7 m | 14,000 |
| GIBSON CANAL | Idaho | Fair | 1959 | 6.4 m | 13,750 |
| GIBSON CANAL | Idaho | Good | 1959 | 6.4 m | 13,750 |
| I15B;UPRR;S.BLACKFOOT IC | Idaho | Poor | 1961 | 119.5 m | 13,750 |
| I15B;UPRR;S.BLACKFOOT IC | Idaho | Poor | 1961 | 119.5 m | 13,750 |
| RIDENBAUGH CANAL | Idaho | Good | 2005 | 9.1 m | 13,500 |
| US 20-26 CHINDEN BLVD | Idaho | Fair | 1991 | 49.1 m | 13,500 |
| IDAHO CANAL | Idaho | Fair | 1999 | 15.9 m | 13,500 |
| BOISE RIVER SLOUGH | Idaho | Good | 1965 | 7.9 m | 13,500 |
| DRY CREEK | Idaho | Fair | 1997 | 19.2 m | 13,500 |
| NEW YORK CANAL | Idaho | Good | 2006 | 32.3 m | 13,500 |
| UPRR;AMITY AVE OP | Idaho | Good | 2007 | 185.3 m | 13,500 |
| RIDENBAUGH CANAL | Idaho | Fair | 1969 | 13.4 m | 13,500 |
| RIDENBAUGH CANAL | Idaho | Fair | 1969 | 10.4 m | 13,500 |
| MIDDLETON CANAL | Idaho | Fair | 1959 | 12.2 m | 13,500 |
| BOISE RIVER;GLENWOOD BR | Idaho | Fair | 1995 | 104.0 m | 13,500 |
| DRY CREEK | Idaho | Good | 1996 | 24.4 m | 13,500 |
| BARTON RD.GS | Idaho | Fair | 1964 | 33.5 m | 13,250 |
| BARTON RD.GS | Idaho | Fair | 1964 | 33.5 m | 13,250 |
| SMA 7461;E. TERRY ST | Idaho | Fair | 1964 | 46.3 m | 13,250 |
| SMA 7461;E. TERRY ST | Idaho | Fair | 1964 | 46.3 m | 13,250 |
| STP 7341; CENTER ST. IC. | Idaho | Good | 2007 | 42.1 m | 13,250 |
| STP 7341; CENTER ST. IC. | Idaho | Fair | 2007 | 42.1 m | 13,250 |
| BNRR;ARIZONA ST. | Idaho | Fair | 1972 | 116.4 m | 13,000 |
| HATWAI CREEK | Idaho | Fair | 1979 | 7.6 m | 13,000 |
| KOOTENAI R;UPRR;BNNRS FY | Idaho | Fair | 1984 | 420.6 m | 13,000 |
| SNAKE RIVER;ONTARIO BR | Idaho | Fair | 1960 | 290.6 m | 13,000 |
| SNAKE RIVER;ONTARIO BR | Idaho | Fair | 1960 | 290.6 m | 13,000 |
| CANAL | Idaho | Fair | 1985 | 7.0 m | 13,000 |
| RIDENBAUGH CANAL | Idaho | Fair | 1990 | 9.4 m | 13,000 |
| SNAKE RIVER;BLACKFOOT BR | Idaho | Fair | 2003 | 253.3 m | 13,000 |
| SNAKE RIVER;BLACKFOOT BR | Idaho | Fair | 2002 | 253.3 m | 13,000 |
| DANSKIN CANAL | Idaho | Fair | 1962 | 27.4 m | 13,000 |
| DANSKIN CANAL | Idaho | Good | 1962 | 27.4 m | 13,000 |
| RIVERSIDE CANAL | Idaho | Good | 1962 | 9.8 m | 13,000 |
| RIVERSIDE CANAL | Idaho | Good | 1962 | 9.8 m | 13,000 |
| RIVERSIDE CANAL | Idaho | Fair | 1962 | 7.6 m | 13,000 |
| RIVERSIDE CANAL | Idaho | Fair | 1962 | 7.6 m | 13,000 |
| WHITLEY ROAD GS | Idaho | Good | 1960 | 7.9 m | 13,000 |
| WHITLEY ROAD GS | Idaho | Good | 1960 | 7.9 m | 13,000 |
| IDAHO CANAL | Idaho | Fair | 1987 | 25.0 m | 13,000 |
| IDAHO CANAL | Idaho | Fair | 1970 | 24.7 m | 13,000 |
| STC 6708; ST LEON RD IC | Idaho | Good | 2005 | 33.8 m | 13,000 |
| STC 6708; ST LEON RD IC | Idaho | Good | 2005 | 33.8 m | 13,000 |
| STC 7325;ELM AVE.GS | Idaho | Fair | 1960 | 43.0 m | 12,750 |
| PORTER CANAL | Idaho | Fair | 1962 | 7.9 m | 12,750 |
| I 15B;BROADWAY ST.IC | Idaho | Fair | 1962 | 53.3 m | 12,750 |
| I 15B;BROADWAY ST.IC | Idaho | Fair | 1962 | 53.3 m | 12,750 |
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.