I-80 Bus over Duncomb Hollow
Uinta County, Wyoming · rated Fair in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- I-80 Bus over Duncomb Hollow in Uinta County, Wyoming, 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 1987, making it 38 years old at the 2025 inventory.
- It carries about 5,633 vehicles a day (traffic count year 2024).
- Its listed owner is the state highway agency.
- It is one of 93 of the 132 inventoried bridges in Uinta County rated fair (70.5%); 16 (12.1%) are rated poor.
- Its traffic status in the 2025 inventory is open, no restriction (NBI item 41).
- Its condition class and component ratings are unchanged from the 2024 inventory.
- Its most recent inspection on record is dated July 2024, on a 24-month routine inspection cycle.
- 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 → (41.26656, -110.93731)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Culvert | 6 | 6 | Satisfactory condition |
Bridge details
| Structure | Continuous concrete culvert |
| Length | about 35 ft |
| Location | Evanston Streets |
| NBI structure number | FFJ |
| Condition class | Fair |
| Traffic status (item 41) | Open, no restriction |
| Last inspection (item 90) | July 2024 |
| Inspection interval (item 91) | 24 months |
| Scour (item 113) | 8: foundations stable, scour above the top of the footing |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Wyoming department of transportation.
Busiest bridges in Uinta County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| I-80 Wbl over Yellow Creek Road | 1967 | 8,996 | Poor |
| I-80 Wbl over Wyo 150 | 1986 | 8,996 | Fair |
| I-80 Ebl over Harrison Drive | 1967 | 8,693 | Fair |
| I-80 Ebl over UPRR / Bear River | 1967 | 8,487 | Fair |
| I-80 Ebl over Bear River Drive | 1966 | 8,487 | Fair |
| I-80 Ebl over Yellow Creek Road | 1967 | 8,443 | Fair |
All bridges nearby: Uinta County, WY bridge conditions · every bridge in Uinta County · Wyoming bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.