I 90 over Gallatin River
Fair Condition61 years old9,726 vehicles/day
Location
| State | Montana |
| County | Gallatin |
| Location | 3.1m E Manhattan |
| Carries | I 90 |
| Crosses | Gallatin River |
| Coordinates | 45.82363, -111.27207 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 7 (Good) |
| Superstructure | 7 (Good) |
| Substructure | 6 (Satisfactory) |
| Channel/Waterway | 6 (Satisfactory) |
| Scour Critical | 3 — Scour critical |
Physical Characteristics
| Material | Prestressed Concrete |
| Design | Stringer/Multi-beam |
| Total Length | 206.0 ft (62.8 m) |
| Max Span | 51.5 ft (15.7 m) |
| Deck Width | 39.4 ft (12 m) |
| Deck Area | 753.6 sq m |
| Main Spans | 4 |
| Year Built | 1965 |
Traffic
| Avg Daily Traffic | 9,726 (2023) |
| Truck Traffic | 12% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 524 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | I00090292+04251 |