Fdr over South Fork Boise River
Elmore County, Idaho · rated Good in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Fdr over South Fork Boise River in Elmore County, Idaho, is rated in good condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the superstructure, rated 7 (good condition) on the 0-9 scale.
- It was built in 1956, making it 69 years old at the 2025 inventory.
- It carries about 50 vehicles a day.
- It is one of 25 of the 98 inventoried bridges in Elmore County rated good (25.5%); 8 (8.2%) are rated poor.
- A good rating means every major component - deck, superstructure, substructure, or culvert - is rated 7 or higher on FHWA's 0-9 scale: no more than minor problems.
View this bridge on a map → (43.6044, -115.07965)
Component ratings
| Component | Rating (2025) | FHWA scale meaning |
|---|---|---|
| Deck | 8 | Very good condition |
| Superstructure | 7 | Good condition |
| Substructure | 7 | Good condition |
Bridge details
| Structure | Continuous steel stringer or multi-beam girder |
| Length | about 133 ft |
| Location | 10 Miles West Feathervile |
| NBI structure number | 041405000001093 |
| Condition class | Good |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Idaho department of transportation.
Busiest bridges in Elmore County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| I 84 Ebl over Squaw Creek | 1953 | 14,250 | Fair |
| I 84 Wbl over Squaw Creek | 1960 | 14,250 | Fair |
| I 84 Ebl over Canyon Creek | 1959 | 14,250 | Good |
| I 84 Wbl over Canyon Creek | 1959 | 14,250 | Fair |
| I 84 Wbl over US 20;N.MOUNTAIN Home Ic | 1971 | 10,750 | Fair |
| I 84 Ebl over US 20;N.MOUNTAIN Home Ic | 1971 | 10,750 | Fair |
All bridges nearby: Elmore County, ID bridge conditions · every bridge in Elmore County · Idaho bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.