US 191 Fh 42 over Gallatin River
Fair Condition68 years old10,221 vehicles/day
Location
| State | Montana |
| County | Gallatin |
| Location | 5m S Gallatin Gateway |
| Carries | US 191 Fh 42 |
| Crosses | Gallatin River |
| Coordinates | 45.52200, -111.25034 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 6 (Satisfactory) |
| Superstructure | 5 (Fair) |
| Substructure | 6 (Satisfactory) |
| Channel/Waterway | 7 (Good) |
| Scour Critical | 5 — Stable for scour |
Physical Characteristics
| Material | Steel Continuous |
| Design | Stringer/Multi-beam |
| Total Length | 265.7 ft (81 m) |
| Max Span | 100.1 ft (30.5 m) |
| Deck Width | 31.8 ft (9.7 m) |
| Deck Area | 785.7 sq m |
| Main Spans | 3 |
| Year Built | 1958 |
Traffic
| Avg Daily Traffic | 10,221 (2023) |
| Truck Traffic | 4% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 423 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | P00050070+04611 |