Bridge conditions in Bingham County, Idaho
263 inventoried bridges · 9 rated poor · 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
The federal inventory lists 263 bridges in Bingham County: 44 rated good, 210 fair, and 9 poor.
- 9 of the 263 bridges in Bingham County, Idaho, are rated in poor condition (3.4%) in the 2025 National Bridge Inventory, as of .
- 44 bridges (16.7%) are rated good and 210 (79.8%) fair.
- The median Bingham County bridge was built in 1972.
- The busiest poor-rated bridge is I 15 Sbl over I15B;UPRR;S.BLACKFOOT Ic (built 1961), carrying about 13,750 vehicles a day.
Good 16.7% · Fair 79.8% · Poor 3.4% of 263 bridges
Bridges rated poor
Every bridge in the county with a poor rating, busiest first. Poor means a major component is rated 4 or lower on FHWA's 0-9 scale; it is a repair flag, not a closure notice.
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| I 15 Sbl over I15B;UPRR;S.BLACKFOOT Ic | 1961 | 13,750 | Poor |
| I 15 Nbl over I15B;UPRR;S.BLACKFOOT Ic | 1961 | 13,750 | Poor |
| I 15B ;US 91 over Blackfoot River | 1936 | 7,000 | Poor |
| Sma 7611;W. Bridge over Snake River | 1936 | 6,900 | Poor |
| US 91 over Blackfoot Canal | 1951 | 4,600 | Poor |
| US 91 over Gibson Lateral Canal | 1923 | 3,800 | Poor |
| Stc 1840:WOLVERINE over Idaho Canal | 2002 | 290 | Poor |
| Scott Rd; W 100 S over Aberdeen Springfield Cnl | 1964 | 190 | Poor |
| Willie Rd over I 15;WILLIE Road Gs | 1959 | 160 | Poor |
Busiest bridges in the county
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| I 15 Nbl & Sbl over Ross Fork Creek | 2023 | 29,000 | Good |
| I 15 over Riverside Canal | 2019 | 26,000 | Good |
| US 26 Ebl & Wbl over Snake River;w.blackfoot | 1965 | 18,000 | Fair |
| I 15 Nbl over Aberdeen Springfield Cnl | 1962 | 14,250 | Fair |
| I 15 Sbl over Aberdeen Springfield Cnl | 1962 | 14,250 | Fair |
| I 15 Nbl over Peoples Canal | 1962 | 14,250 | Fair |
| I 15 Sbl over Peoples Canal | 1962 | 14,250 | Fair |
| I 15 Nbl over Lava Side Canal | 1962 | 14,250 | Good |
| I 15 Sbl over Lava Side Canal | 1962 | 14,250 | Good |
| I 15 Nbl over Great Western Canal | 1962 | 14,250 | Good |
Source: FHWA National Bridge Inventory, 2025. Counts cover inventoried highway bridges over 20 feet; ratings are reported by the state DOT.
All of Idaho: Idaho bridge conditions by county · every download on the data page.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.