I 90 over Jr Grade Sep
Fair Condition65 years old10,463 vehicles/day
Location
| State | Montana |
| County | Powell |
| Location | 6.2m N Deer Lodge |
| Carries | I 90 |
| Crosses | Jr Grade Sep |
| Coordinates | 46.47663, -112.72318 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 6 (Satisfactory) |
| Superstructure | 6 (Satisfactory) |
| Substructure | 6 (Satisfactory) |
| Scour Critical | Not applicable |
Physical Characteristics
| Material | Concrete |
| Design | Slab |
| Total Length | 22.6 ft (6.9 m) |
| Max Span | 21.3 ft (6.5 m) |
| Deck Width | 124.0 ft (37.8 m) |
| Deck Area | 260.8 sq m |
| Main Spans | 1 |
| Year Built | 1961 (reconstructed 1978) |
Traffic
| Avg Daily Traffic | 10,463 (2023) |
| Truck Traffic | 20% |
| Lanes On Bridge | 4 |
| Lanes Under Bridge | 2 |
Inspection & Ownership
| Last Inspection | 524 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | I00090180+04301 |