I 15 over Beaverhead River
Fair Condition61 years old2,239 vehicles/day
Location
| State | Montana |
| County | Beaverhead |
| Location | 8m N Clark Canyon Dam |
| Carries | I 15 |
| Crosses | Beaverhead River |
| Coordinates | 45.10001, -112.77702 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 5 (Fair) |
| Superstructure | 7 (Good) |
| Substructure | 6 (Satisfactory) |
| Channel/Waterway | 7 (Good) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Prestressed Concrete |
| Design | Stringer/Multi-beam |
| Total Length | 189.0 ft (57.6 m) |
| Max Span | 60.0 ft (18.3 m) |
| Deck Width | 44.0 ft (13.4 m) |
| Deck Area | 771.8 sq m |
| Main Spans | 3 |
| Year Built | 1965 |
Traffic
| Avg Daily Traffic | 2,239 (2023) |
| Truck Traffic | 24% |
| Lanes On 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 | I00015052+07992 |