US 191 Fh 42 over West Fork Gallatin River
Fair Condition17 years old8,952 vehicles/day
Location
| State | Montana |
| County | Gallatin |
| Location | 2m E Big Sky |
| Carries | US 191 Fh 42 |
| Crosses | West Fork Gallatin River |
| Coordinates | 45.26544, -111.25306 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 6 (Satisfactory) |
| Superstructure | 6 (Satisfactory) |
| Substructure | 7 (Good) |
| Channel/Waterway | 8 (Very Good) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Prestressed Concrete |
| Design | Stringer/Multi-beam |
| Total Length | 97.4 ft (29.7 m) |
| Max Span | 95.1 ft (29 m) |
| Deck Width | 77.8 ft (23.7 m) |
| Deck Area | 703.9 sq m |
| Main Spans | 1 |
| Year Built | 2009 |
Traffic
| Avg Daily Traffic | 8,952 (2023) |
| Truck Traffic | 5% |
| Lanes On Bridge | 3 |
Inspection & Ownership
| Last Inspection | 623 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | P00050047+09981 |