Mt 41 over Beaverhead River
Fair Condition77 years old2,865 vehicles/day
Location
| State | Montana |
| County | Madison |
| Location | Twin Bridges |
| Carries | Mt 41 |
| Crosses | Beaverhead River |
| Coordinates | 45.54426, -112.33248 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 7 (Good) |
| Superstructure | 6 (Satisfactory) |
| Substructure | 5 (Fair) |
| Channel/Waterway | 4 (Poor) |
| Scour Critical | 3 — Scour critical |
Physical Characteristics
| Material | Steel |
| Design | Stringer/Multi-beam |
| Total Length | 181.1 ft (55.2 m) |
| Max Span | 60.4 ft (18.4 m) |
| Deck Width | 36.1 ft (11 m) |
| Deck Area | 607.2 sq m |
| Main Spans | 3 |
| Year Built | 1949 |
Traffic
| Avg Daily Traffic | 2,865 (2023) |
| Truck Traffic | 10% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | November 2024 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | P00049027+05411 |