I 90 over Old Hardin RD
Fair Condition57 years old4,235 vehicles/day
Location
| State | Montana |
| County | Yellowstone |
| Location | 4.3m E Billings |
| Carries | I 90 |
| Crosses | Old Hardin RD |
| Coordinates | 45.82464, -108.38678 |
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 | 151.9 ft (46.3 m) |
| Max Span | 57.1 ft (17.4 m) |
| Deck Width | 40.7 ft (12.4 m) |
| Deck Area | 574.1 sq m |
| Main Spans | 3 |
| Year Built | 1969 |
Traffic
| Avg Daily Traffic | 4,235 (2023) |
| Truck Traffic | 20% |
| Lanes On Bridge | 2 |
| Lanes Under Bridge | 2 |
Inspection & Ownership
| Last Inspection | October 2023 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | I00090457+00542 |