Wyo 450 over Black Thunder Creek
Fair Condition45 years old725 vehicles/day
Location
| State | Wyoming |
| County | Weston |
| Location | Newcastle - Jct Wyo 59 |
| Carries | Wyo 450 |
| Crosses | Black Thunder Creek |
| Coordinates | 43.66983, -104.90197 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 6 (Satisfactory) |
| Superstructure | 7 (Good) |
| Substructure | 6 (Satisfactory) |
| Channel/Waterway | 5 (Fair) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Steel Continuous |
| Design | Stringer/Multi-beam |
| Total Length | 138.1 ft (42.1 m) |
| Max Span | 54.1 ft (16.5 m) |
| Deck Width | 34.4 ft (10.5 m) |
| Deck Area | 442.1 sq m |
| Main Spans | 3 |
| Year Built | 1981 |
Traffic
| Avg Daily Traffic | 725 (2024) |
| Truck Traffic | 40% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 724 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Historical significance is not determined |
| Structure Number | DFX |