I 15 over Beaverhead River
Fair Condition46 years old2,239 vehicles/day
Location
| State | Montana |
| County | Beaverhead |
| Location | 8m N Clark Canyon Dam |
| Carries | I 15 |
| Crosses | Beaverhead River |
| Coordinates | 45.10291, -112.77326 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 6 (Satisfactory) |
| 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 | 153.9 ft (46.9 m) |
| Max Span | 61.4 ft (18.7 m) |
| Deck Width | 44.9 ft (13.7 m) |
| Deck Area | 642.5 sq m |
| Main Spans | 3 |
| Year Built | 1980 |
Traffic
| Avg Daily Traffic | 2,239 (2023) |
| Truck Traffic | 24% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 225 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | I00015053+00301 |