River Road over Vinson Wash
Owyhee County, Idaho · rated Poor in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- River Road over Vinson Wash in Owyhee County, Idaho, is rated in poor condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the superstructure, rated 3 (serious condition) on the 0-9 scale.
- It was built in 1930 and reconstructed in 1980, making it 95 years old at the 2025 inventory.
- It carries about 60 vehicles a day (traffic count year 2023).
- Its listed owner is the county highway agency.
- It is one of 4 of the 49 inventoried bridges in Owyhee County rated poor (8.2%); 4 (8.2%) are rated poor.
- Its traffic status in the 2025 inventory is posted for load (NBI item 41).
- Its condition class and component ratings are unchanged from the 2024 inventory.
- Its most recent inspection on record is dated February 2024, on a 12-month routine inspection cycle.
- 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 → (43.01186, -116.14879)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Deck | 5 | 5 | Fair condition |
| Superstructure | 3 | 3 | Serious condition |
| Substructure | 5 | 5 | Fair condition |
Bridge details
| Structure | Steel stringer or multi-beam girder |
| Length | about 36 ft |
| Location | 2.0 N. 2.6 W. Grand View |
| NBI structure number | 000000000028235 |
| Condition class | Poor |
| Traffic status (item 41) | Posted for load |
| Last inspection (item 90) | February 2024 |
| Inspection interval (item 91) | 12 months |
| Scour (item 113) | U: unknown foundation, not evaluated for scour |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Idaho department of transportation.
Busiest bridges in Owyhee County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| US 95 over Snake River;homedale Br. | 1969 | 11,000 | Fair |
| SH 55 over Snake River (marsing Br) | 2020 | 7,500 | Fair |
| US 95 over B Line Canal | 1982 | 3,600 | Good |
| US 95 over Jump Creek | 1982 | 3,200 | Good |
| SH 19 over Succor Creek | 2017 | 2,500 | Good |
| SH 45 over Snake R.(walters Ferry) | 1972 | 1,900 | Fair |
All bridges nearby: Owyhee County, ID bridge conditions · every bridge in Owyhee County · Idaho bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.