I 15 over Int S Montana Street
Fair Condition65 years old9,878 vehicles/day
Location
| State | Montana |
| County | Silver Bow |
| Location | Butte |
| Carries | I 15 |
| Crosses | Int S Montana Street |
| Coordinates | 45.99240, -112.53907 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 6 (Satisfactory) |
| Superstructure | 6 (Satisfactory) |
| Substructure | 6 (Satisfactory) |
| Scour Critical | Not applicable |
Physical Characteristics
| Material | Steel |
| Design | Stringer/Multi-beam |
| Total Length | 168.0 ft (51.2 m) |
| Max Span | 75.1 ft (22.9 m) |
| Deck Width | 31.8 ft (9.7 m) |
| Deck Area | 496.6 sq m |
| Main Spans | 1 |
| Year Built | 1961 |
Traffic
| Avg Daily Traffic | 9,878 (2023) |
| Truck Traffic | 11% |
| Lanes On Bridge | 2 |
| Lanes Under Bridge | 4 |
Inspection & Ownership
| Last Inspection | 223 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | I00015126+03161 |