I 15 over Beaverhead River
Fair Condition44 years old2,863 vehicles/day
Location
| State | Montana |
| County | Beaverhead |
| Location | 3.1m S Dillon |
| Carries | I 15 |
| Crosses | Beaverhead River |
| Coordinates | 45.18494, -112.68925 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 6 (Satisfactory) |
| Superstructure | 7 (Good) |
| Substructure | 6 (Satisfactory) |
| Channel/Waterway | 8 (Very Good) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Prestressed Concrete |
| Design | Stringer/Multi-beam |
| Total Length | 143.0 ft (43.6 m) |
| Max Span | 100.1 ft (30.5 m) |
| Deck Width | 44.9 ft (13.7 m) |
| Deck Area | 597.3 sq m |
| Main Spans | 2 |
| Year Built | 1982 |
Traffic
| Avg Daily Traffic | 2,863 (2023) |
| Truck Traffic | 23% |
| 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 | I00015060+01522 |