Bridge conditions in Camas County, Idaho
62 inventoried bridges · 7 rated poor · 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
Of the 62 Camas County bridges in the federal inventory, 7 carry a poor rating. That 11.3% share is roughly 2x the national average.
- 7 of the 62 bridges in Camas County, Idaho, are rated in poor condition (11.3%) in the 2025 National Bridge Inventory, as of .
- 17 bridges (27.4%) are rated good and 38 (61.3%) fair.
- The median Camas County bridge was built in 1969.
- The busiest poor-rated bridge is SH 46 over Minear Creek (built 1955), carrying about 630 vehicles a day.
Good 27.4% · Fair 61.3% · Poor 11.3% of 62 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 |
|---|---|---|---|
| SH 46 over Minear Creek | 1955 | 630 | Poor |
| Swamp Road over Camas Creek | 1965 | 40 | Poor |
| Swamp Road over Camas Creek | 1965 | 40 | Poor |
| 200 South Road over Camas Creek | 1950 | 30 | Poor |
| 200 South Road over Camas Creek | 1920 | 30 | Poor |
| Fir Grove Road over Camas Creek | 1965 | 30 | Poor |
| Fdr over South Fork Boise River | 1989 | 12 | Poor |
Busiest bridges in the county
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| US 20 over Willow Creek | 2019 | 2,200 | Good |
| US 20 over No Name Creek | 1961 | 1,900 | Fair |
| US 20 over Hot Creek | 1961 | 1,900 | Fair |
| US 20 over Arnold Creek | 1961 | 1,900 | Fair |
| US 20 over Chimney Cr.;sheep CR. | 1961 | 1,900 | Fair |
| US 20 over Corral Creek | 1969 | 1,900 | Fair |
| US 20 over Three Mile Creek | 1969 | 1,900 | Fair |
| US 20 over W.fk.soldier Creek | 1958 | 1,900 | Fair |
| US 20 over Soldier Creek | 1958 | 1,900 | Fair |
| US 20 over E.fk.soldier Creek | 1958 | 1,900 | Fair |
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.