Derby Rd over Humboldt Rvr
Pershing County, Nevada · rated Fair in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Derby Rd over Humboldt Rvr in Pershing County, Nevada, 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 2002, making it 23 years old at the 2025 inventory.
- It carries about 61 vehicles a day (traffic count year 2017).
- Its listed owner is the county highway agency.
- It is one of 30 of the 53 inventoried bridges in Pershing County rated fair (56.6%); 0 (0.0%) 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 → (40.05197, -118.46775)
Component ratings
| Component | Rating (2025) | FHWA scale meaning |
|---|---|---|
| Deck | 7 | Good condition |
| Superstructure | 7 | Good condition |
| Substructure | 6 | Satisfactory condition |
Bridge details
| Structure | Continuous concrete slab |
| Length | about 89 ft |
| Location | South of Lovelock |
| NBI structure number | B1618 |
| Condition class | Fair |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Nevada department of transportation.
Busiest bridges in Pershing County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| I 80 over Torey Wash | 1961 | 10,500 | Fair |
| I 80 over Dry Wash | 1965 | 6,350 | Fair |
| I 80 over Dry Wash | 1965 | 6,350 | Fair |
| I 80E over Humboldt Rvr Glenn Ln | 1976 | 5,400 | Good |
| I 80W over Humboldt Rvr | 1976 | 5,400 | Good |
| I 80 over Fairview Ditch | 1977 | 5,400 | Fair |
All bridges nearby: Pershing County, NV bridge conditions · every bridge in Pershing County · Nevada bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.