IRR - US 89 over Birch Creek
Fair Condition61 years old1,012 vehicles/day
Location
| State | Montana |
| County | Pondera |
| Location | 14m W Valier |
| Carries | IRR - US 89 |
| Crosses | Birch Creek |
| Coordinates | 48.32628, -112.54768 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 6 (Satisfactory) |
| Superstructure | 8 (Very Good) |
| Substructure | 7 (Good) |
| Channel/Waterway | 7 (Good) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Prestressed Concrete |
| Design | Stringer/Multi-beam |
| Total Length | 213.9 ft (65.2 m) |
| Max Span | 70.9 ft (21.6 m) |
| Deck Width | 35.8 ft (10.9 m) |
| Deck Area | 710.7 sq m |
| Main Spans | 3 |
| Year Built | 1965 |
Traffic
| Avg Daily Traffic | 1,012 (2023) |
| Truck Traffic | 5% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | December 2024 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | P00003085+04811 |