I 15 over Sep Troy Creek Road
Fair Condition53 years old2,534 vehicles/day
Location
| State | Montana |
| County | Jefferson |
| Location | 3.7m S Jefferson City |
| Carries | I 15 |
| Crosses | Sep Troy Creek Road |
| Coordinates | 46.33842, -112.04878 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 6 (Satisfactory) |
| Superstructure | 6 (Satisfactory) |
| Substructure | 6 (Satisfactory) |
| Scour Critical | Not applicable |
Physical Characteristics
| Material | Concrete Continuous |
| Design | Slab |
| Total Length | 78.1 ft (23.8 m) |
| Max Span | 29.9 ft (9.1 m) |
| Deck Width | 44.3 ft (13.5 m) |
| Deck Area | 321.3 sq m |
| Main Spans | 3 |
| Year Built | 1973 |
Traffic
| Avg Daily Traffic | 2,534 (2023) |
| Truck Traffic | 14% |
| Lanes On Bridge | 2 |
| Lanes Under Bridge | 2 |
Inspection & Ownership
| Last Inspection | 324 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | I00015172+03861 |