I-90 Ebl over Machinery Pass
Crook County, Wyoming · rated Fair in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- I-90 Ebl over Machinery Pass in Crook County, Wyoming, is rated in fair condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the deck, rated 6 (satisfactory condition) on the 0-9 scale.
- It was built in 1962, making it 63 years old at the 2025 inventory.
- It carries about 1,559 vehicles a day (traffic count year 2024).
- Its listed owner is the state highway agency.
- It is one of 120 of the 176 inventoried bridges in Crook County rated fair (68.2%); 4 (2.3%) 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 June 2023, 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 → (44.26949, -104.88584)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Deck | 6 | 6 | Satisfactory condition |
| Superstructure | 6 | 6 | Satisfactory condition |
| Substructure | 6 | 6 | Satisfactory condition |
Bridge details
| Structure | Continuous concrete slab |
| Length | about 67 ft |
| Location | Moorcroft - Sundance |
| NBI structure number | BHF |
| Condition class | Fair |
| Traffic status (item 41) | Open, no restriction |
| Last inspection (item 90) | June 2023 |
| Inspection interval (item 91) | 24 months |
| Scour (item 113) | N: not over a waterway |
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.