Cobb Hill RD over Hyalite Creek 050
Fair Condition39 years old100 vehicles/day
Location
| State | Montana |
| County | Gallatin |
| Location | 4m W Bozeman |
| Carries | Cobb Hill RD |
| Crosses | Hyalite Creek 050 |
| Coordinates | 45.66992, -111.16486 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 6 (Satisfactory) |
| Superstructure | 6 (Satisfactory) |
| Substructure | 6 (Satisfactory) |
| Channel/Waterway | 7 (Good) |
| Scour Critical | 5 — Stable for scour |
Physical Characteristics
| Material | Wood or Timber |
| Design | Stringer/Multi-beam |
| Total Length | 27.9 ft (8.5 m) |
| Max Span | 25.9 ft (7.9 m) |
| Deck Width | 24.0 ft (7.3 m) |
| Deck Area | 62.0 sq m |
| Main Spans | 1 |
| Year Built | 1987 |
Traffic
| Avg Daily Traffic | 100 (2025) |
| Truck Traffic | 3% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 623 |
| Inspection Frequency | Every 24 months |
| Owner | County Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | L16728000+01001 |