IRR Route 46 over Big Sandy Creek
Poor Condition63 years old100 vehicles/day
Location
| State | Montana |
| County | Hill |
| Location | 11 Km Nnw Of Box Elder |
| Carries | IRR Route 46 |
| Crosses | Big Sandy Creek |
| Coordinates | 48.40924, -109.94428 |
Condition Ratings
| Overall Condition | Poor |
| Deck | 5 (Fair) |
| Superstructure | 4 (Poor) |
| Substructure | 2 (Critical) |
| Channel/Waterway | 5 (Fair) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Concrete |
| Design | Channel Beam |
| Total Length | 25.3 ft (7.7 m) |
| Max Span | 24.3 ft (7.4 m) |
| Deck Width | 25.6 ft (7.8 m) |
| Deck Area | 60.1 sq m |
| Main Spans | 1 |
| Year Built | 1963 |
Traffic
| Avg Daily Traffic | 100 (2024) |
| Truck Traffic | 15% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | October 2024 |
| Inspection Frequency | Every 24 months |
| Owner | Bureau of Indian Affairs |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 0000C59205B0922 |