Stc 3007;UNITY Rd over Weiser River
Washington County, Idaho · rated Poor in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Stc 3007;UNITY Rd over Weiser River in Washington County, Idaho, is rated in poor condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the superstructure, rated 4 (poor condition) on the 0-9 scale.
- It was built in 1910 and reconstructed in 2000, making it 115 years old at the 2025 inventory.
- It carries about 180 vehicles a day (traffic count year 2023).
- Its listed owner is the county highway agency.
- It is one of 4 of the 80 inventoried bridges in Washington County rated poor (5.0%); 4 (5.0%) are rated poor.
- A poor rating means at least one major component - deck, superstructure, or substructure - is rated 4 or lower on FHWA's 0-9 scale. It does not by itself mean the bridge is unsafe; bridges judged unsafe are closed or load-restricted by their owners.
View this bridge on a map → (44.23508, -116.85742)
Component ratings
| Component | Rating (2025) | FHWA scale meaning |
|---|---|---|
| Deck | 6 | Satisfactory condition |
| Superstructure | 4 | Poor condition |
| Substructure | 4 | Poor condition |
Bridge details
| Structure | Steel through truss |
| Length | about 303 ft |
| Location | 0.7 S. 5.6 E. Weiser |
| NBI structure number | 000000000028795 |
| Condition class | Poor |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Idaho department of transportation.
Busiest bridges in Washington County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| US 95 over Robertson Slough | 2017 | 7,800 | Good |
| US 95 over Weiser River | 2013 | 7,700 | Fair |
| US 95 over Monroe Creek | 1999 | 5,600 | Good |
| US 95 over Galloway Canal | 1999 | 5,600 | Good |
| US 95 over Manns Creek | 2004 | 4,400 | Fair |
| US 95 over Sage Creek | 1964 | 4,400 | Fair |
All bridges nearby: Washington County, ID bridge conditions · every bridge in Washington County · Idaho bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.