I 15 over Int Rocker
Fair Condition58 years old10,824 vehicles/day
Location
| State | Montana |
| County | Silver Bow |
| Location | Rocker |
| Carries | I 15 |
| Crosses | Int Rocker |
| Coordinates | 46.00659, -112.61109 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 7 (Good) |
| Superstructure | 7 (Good) |
| Substructure | 6 (Satisfactory) |
| Scour Critical | Not applicable |
Physical Characteristics
| Material | Prestressed Concrete |
| Design | Stringer/Multi-beam |
| Total Length | 118.1 ft (36 m) |
| Max Span | 44.9 ft (13.7 m) |
| Deck Width | 40.7 ft (12.4 m) |
| Deck Area | 446.4 sq m |
| Main Spans | 3 |
| Year Built | 1968 |
Traffic
| Avg Daily Traffic | 10,824 (2023) |
| Truck Traffic | 10% |
| Lanes On Bridge | 2 |
| Lanes Under Bridge | 2 |
Inspection & Ownership
| Last Inspection | 523 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | I00015122+04231 |