I-15SB (SR-15) over Wildlife Underpass
Beaver County, Utah · rated Fair in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- I-15SB (SR-15) over Wildlife Underpass in Beaver County, Utah, is rated in fair condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the culvert, rated 6 (satisfactory condition) on the 0-9 scale.
- It was built in 2005, making it 20 years old at the 2025 inventory.
- Its listed owner is the state highway agency.
- It is one of 43 of the 53 inventoried bridges in Beaver County rated fair (81.1%); 2 (3.8%) 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 → (38.45685, -112.62301)
Component ratings
| Component | Rating (2025) | FHWA scale meaning |
|---|---|---|
| Culvert | 6 | Satisfactory condition |
Bridge details
| Structure | Steel culvert |
| Length | about 23 ft |
| Location | 3.7Mi.No.Manderfield Int. |
| NBI structure number | 3V2067 |
| Condition class | Fair |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Utah department of transportation.
Busiest bridges in Beaver County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| I-15 (SR-15) Nbl over Deer Crossing | 1975 | 25,503 | Fair |
| I-15 (SR-15) Nbl over County Access Road | 1975 | 25,503 | Fair |
| I-15 (SR-15) Sbl over Deer Crossing | 1984 | 25,503 | Fair |
| I-15 (SR-15) Sbl over County Access Road | 1975 | 25,503 | Fair |
| I-15 (SR-15)NBRamp over North Wash | 1964 | 24,161 | Fair |
| I-15 (SR-15) Nbl over SR-160 | 1970 | 24,161 | Fair |
All bridges nearby: Beaver County, UT bridge conditions · every bridge in Beaver County · Utah bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.