Tammany LN over Bitterroot Canal 046
Fair Condition38 years old100 vehicles/day
Location
| State | Montana |
| County | Ravalli |
| Location | 4m SE Hamilton |
| Carries | Tammany LN |
| Crosses | Bitterroot Canal 046 |
| Coordinates | 46.21436, -114.08160 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 6 (Satisfactory) |
| Superstructure | 6 (Satisfactory) |
| Substructure | 6 (Satisfactory) |
| Channel/Waterway | 8 (Very Good) |
| Scour Critical | 5 — Stable for scour |
Physical Characteristics
| Material | Concrete |
| Design | Channel Beam |
| Total Length | 58.1 ft (17.7 m) |
| Max Span | 27.9 ft (8.5 m) |
| Deck Width | 29.5 ft (9 m) |
| Deck Area | 159.3 sq m |
| Main Spans | 2 |
| Year Built | 1988 |
Traffic
| Avg Daily Traffic | 100 (2025) |
| Truck Traffic | 3% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | October 2024 |
| Inspection Frequency | Every 24 months |
| Owner | County Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | L41500002+01001 |