US 191 over Specimen Creek
Fair Condition71 years old2,605 vehicles/day
Location
| State | Montana |
| County | Gallatin |
| Location | 24m SE Big Sky |
| Carries | US 191 |
| Crosses | Specimen Creek |
| Coordinates | 45.01190, -111.08143 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 6 (Satisfactory) |
| Superstructure | 6 (Satisfactory) |
| Substructure | 6 (Satisfactory) |
| Channel/Waterway | 6 (Satisfactory) |
| Scour Critical | 5 — Stable for scour |
Physical Characteristics
| Material | Concrete Continuous |
| Design | Tee Beam |
| Total Length | 63.6 ft (19.4 m) |
| Max Span | 40.0 ft (12.2 m) |
| Deck Width | 33.8 ft (10.3 m) |
| Deck Area | 199.8 sq m |
| Main Spans | 3 |
| Year Built | 1955 |
Traffic
| Avg Daily Traffic | 2,605 (2023) |
| Truck Traffic | 10% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 723 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | P00050026+04431 |