Fdr over South Fork Boise River
Camas County, Idaho · rated Fair in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Fdr over South Fork Boise River in Camas County, Idaho, is rated in fair condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the deck, rated 6 (satisfactory condition) on the 0-9 scale.
- It was built in 1976, making it 49 years old at the 2025 inventory.
- It carries about 50 vehicles a day.
- It is one of 38 of the 62 inventoried bridges in Camas County rated fair (61.3%); 7 (11.3%) are rated poor.
- A fair rating means the lowest-rated major component scores 5 or 6 on FHWA's 0-9 scale: some deterioration or minor section loss, but the structure is sound. It is the middle class, not a warning.
View this bridge on a map → (43.71054, -114.89728)
Component ratings
| Component | Rating (2025) | FHWA scale meaning |
|---|---|---|
| Deck | 6 | Satisfactory condition |
| Superstructure | 7 | Good condition |
| Substructure | 7 | Good condition |
Bridge details
| Structure | Continuous steel stringer or multi-beam girder |
| Length | about 109 ft |
| Location | Upper So.fk.boise River |
| NBI structure number | 041405000001007 |
| Condition class | Fair |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Idaho department of transportation.
Busiest bridges in Camas 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 |
All bridges nearby: Camas County, ID bridge conditions · every bridge in Camas County · Idaho bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.