I 90 over Madison Road
Fair Condition63 years old9,762 vehicles/day
Location
| State | Montana |
| County | Gallatin |
| Location | 3.1m E Three Forks |
| Carries | I 90 |
| Crosses | Madison Road |
| Coordinates | 45.89552, -111.49365 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 6 (Satisfactory) |
| Superstructure | 7 (Good) |
| Substructure | 6 (Satisfactory) |
| Scour Critical | Not applicable |
Physical Characteristics
| Material | Prestressed Concrete |
| Design | Stringer/Multi-beam |
| Total Length | 128.0 ft (39 m) |
| Max Span | 44.9 ft (13.7 m) |
| Deck Width | 40.7 ft (12.4 m) |
| Deck Area | 483.6 sq m |
| Main Spans | 3 |
| Year Built | 1963 |
Traffic
| Avg Daily Traffic | 9,762 (2023) |
| Truck Traffic | 12% |
| Lanes On Bridge | 2 |
| Lanes Under Bridge | 2 |
Inspection & Ownership
| Last Inspection | 124 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | I00090280+03612 |