Old US 40 over Sprr
Humboldt County, Nevada · rated Fair in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Old US 40 over Sprr in Humboldt County, Nevada, is rated in fair condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the deck, rated 5 (fair condition) on the 0-9 scale.
- It was built in 1939, making it 86 years old at the 2025 inventory.
- It carries about 122 vehicles a day (traffic count year 2017).
- Its listed owner is the state highway agency.
- It is one of 34 of the 54 inventoried bridges in Humboldt County rated fair (63.0%); 1 (1.9%) 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 → (40.89025, -117.90367)
Component ratings
| Component | Rating (2025) | FHWA scale meaning |
|---|---|---|
| Deck | 5 | Fair condition |
| Superstructure | 5 | Fair condition |
| Substructure | 6 | Satisfactory condition |
Bridge details
| Structure | Continuous steel stringer or multi-beam girder |
| Length | about 215 ft |
| Location | Southwest of Winnemucca |
| NBI structure number | G 387 |
| Condition class | Fair |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Nevada department of transportation.
Busiest bridges in Humboldt County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| SR 787 Hansen St over Sprr | 1967 | 12,000 | Fair |
| Cross Road over I 80 | 1970 | 9,000 | Fair |
| US 95 over I 80 | 1976 | 7,050 | Good |
| US 95 over Humboldt Rvr | 1986 | 6,550 | Fair |
| US 95 over UPRR | 1999 | 6,550 | Fair |
| I 80 over McNITCH RD | 1970 | 5,200 | Fair |
All bridges nearby: Humboldt County, NV bridge conditions · every bridge in Humboldt County · Nevada bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.