Nfsr 50311 over Anderson Ck
Adams County, Idaho · rated Fair in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Nfsr 50311 over Anderson Ck in Adams County, Idaho, is rated in fair condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the substructure, rated 6 (satisfactory condition) on the 0-9 scale.
- It was built in 1974, making it 51 years old at the 2025 inventory.
- It carries about 50 vehicles a day.
- It is one of 52 of the 87 inventoried bridges in Adams County rated fair (59.8%); 8 (9.2%) 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 → (44.53839, -116.22784)
Component ratings
| Component | Rating (2025) | FHWA scale meaning |
|---|---|---|
| Deck | 7 | Good condition |
| Superstructure | 7 | Good condition |
| Substructure | 6 | Satisfactory condition |
Bridge details
| Structure | Timber stringer or multi-beam girder |
| Length | about 32 ft |
| Location | No Data Entered |
| NBI structure number | 041201000001193 |
| Condition class | Fair |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Idaho department of transportation.
Busiest bridges in Adams County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| US 95 over Little Salmon River | 2021 | 3,300 | Good |
| US 95 over W.fk.goose Creek | 1978 | 3,300 | Fair |
| US 95 over E.fk.goose Creek | 1978 | 3,300 | Fair |
| US 95 over Little Salmon River | 2019 | 3,100 | Good |
| US 95 over M.fk.weiser River | 1974 | 2,900 | Fair |
| US 95 over Cottonwood Creek | 2017 | 2,900 | Good |
All bridges nearby: Adams County, ID bridge conditions · every bridge in Adams County · Idaho bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.