Wyo 585 over Inyan Kara Creek
Crook County, Wyoming · rated Good in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Wyo 585 over Inyan Kara Creek in Crook County, Wyoming, is rated in good condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the culvert, rated 7 (good condition) on the 0-9 scale.
- It was built in 1990, making it 35 years old at the 2025 inventory.
- It carries about 905 vehicles a day (traffic count year 2024).
- Its listed owner is the state highway agency.
- It is one of 52 of the 176 inventoried bridges in Crook County rated good (29.5%); 4 (2.3%) are rated poor.
- A good rating means every major component - deck, superstructure, substructure, or culvert - is rated 7 or higher on FHWA's 0-9 scale: no more than minor problems.
View this bridge on a map → (44.19964, -104.2663)
Component ratings
| Component | Rating (2025) | FHWA scale meaning |
|---|---|---|
| Culvert | 7 | Good condition |
Bridge details
| Structure | Concrete culvert |
| Length | about 20 ft |
| Location | Four Corners-Sundanced Rd |
| NBI structure number | FUX |
| Condition class | Good |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Wyoming department of transportation.
Busiest bridges in Crook County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| US 14 over S Fork Sundance Creek | 1954 | 3,482 | Fair |
| I-90 Wbl over Well Creek | 1969 | 3,214 | Fair |
| I-90 Wbl over Machinery Pass | 1969 | 3,214 | Fair |
| I-90 Ebl over Wyo 585 | 1972 | 2,981 | Good |
| I-90 Ebl over Machinery Pass | 1972 | 2,981 | Fair |
| I-90 Ebl over I-90 Bus. / US 14 | 1972 | 2,981 | Good |
All bridges nearby: Crook County, WY bridge conditions · every bridge in Crook County · Wyoming bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.