I 90 over Upper Deer Creek
Fair Condition46 years old6,153 vehicles/day
Location
| State | Montana |
| County | Sweet Grass |
| Location | 2.5m W Greycliff |
| Carries | I 90 |
| Crosses | Upper Deer Creek |
| Coordinates | 45.79330, -109.83287 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 7 (Good) |
| Superstructure | 7 (Good) |
| Substructure | 6 (Satisfactory) |
| Channel/Waterway | 7 (Good) |
| Scour Critical | 5 — Stable for scour |
Physical Characteristics
| Material | Prestressed Concrete |
| Design | Stringer/Multi-beam |
| Total Length | 171.9 ft (52.4 m) |
| Max Span | 86.0 ft (26.2 m) |
| Deck Width | 43.6 ft (13.3 m) |
| Deck Area | 696.9 sq m |
| Main Spans | 2 |
| Year Built | 1980 |
Traffic
| Avg Daily Traffic | 6,153 (2023) |
| Truck Traffic | 17% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 923 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | I00090375+04862 |