IRR BIA RTE 1 over Birch Creek
Fair Condition60 years old700 vehicles/day
Location
| State | Montana |
| County | Pondera |
| Location | 13 Km SE Of Heart Butte |
| Carries | IRR BIA RTE 1 |
| Crosses | Birch Creek |
| Coordinates | 48.23306, -112.73425 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 7 (Good) |
| Superstructure | 7 (Good) |
| Substructure | 6 (Satisfactory) |
| Channel/Waterway | 5 (Fair) |
| Scour Critical | 5 — Stable for scour |
Physical Characteristics
| Material | Prestressed Concrete |
| Design | Stringer/Multi-beam |
| Total Length | 200.5 ft (61.1 m) |
| Max Span | 65.0 ft (19.8 m) |
| Deck Width | 26.9 ft (8.2 m) |
| Deck Area | 501.0 sq m |
| Main Spans | 3 |
| Year Built | 1966 |
Traffic
| Avg Daily Traffic | 700 (2023) |
| Truck Traffic | 10% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 923 |
| Inspection Frequency | Every 24 months |
| Owner | Bureau of Indian Affairs |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 00000000000C105 |