I 90 Westbound over Boulder River
Fair Condition58 years old5,599 vehicles/day
Location
| State | Montana |
| County | Jefferson |
| Location | 0.6m E Cardwell |
| Carries | I 90 Westbound |
| Crosses | Boulder River |
| Coordinates | 45.87046, -111.94281 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 6 (Satisfactory) |
| Superstructure | 7 (Good) |
| Substructure | 7 (Good) |
| Channel/Waterway | 7 (Good) |
| Scour Critical | 5 — Stable for scour |
Physical Characteristics
| Material | Prestressed Concrete |
| Design | Stringer/Multi-beam |
| Total Length | 113.8 ft (34.7 m) |
| Max Span | 56.1 ft (17.1 m) |
| Deck Width | 38.1 ft (11.6 m) |
| Deck Area | 402.5 sq m |
| Main Spans | 2 |
| Year Built | 1968 |
Traffic
| Avg Daily Traffic | 5,599 (2023) |
| Truck Traffic | 18% |
| Lanes On 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 | I00090256+08672 |