IRR - US 89 over Blacktail Creek
Poor Condition61 years old1,012 vehicles/day
Location
| State | Montana |
| County | Pondera |
| Location | 16m NW Valier |
| Carries | IRR - US 89 |
| Crosses | Blacktail Creek |
| Coordinates | 48.35321, -112.55702 |
Condition Ratings
| Overall Condition | Poor |
| Deck | 4 (Poor) |
| Superstructure | 8 (Very Good) |
| Substructure | 7 (Good) |
| Channel/Waterway | 7 (Good) |
| Scour Critical | 5 — Stable for scour |
Physical Characteristics
| Material | Prestressed Concrete |
| Design | Stringer/Multi-beam |
| Total Length | 145.0 ft (44.2 m) |
| Max Span | 70.9 ft (21.6 m) |
| Deck Width | 36.7 ft (11.2 m) |
| Deck Area | 495.0 sq m |
| Main Spans | 2 |
| Year Built | 1965 |
Traffic
| Avg Daily Traffic | 1,012 (2023) |
| Truck Traffic | 5% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 923 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | P00003087+03951 |