IRR BIA RTE 4 over Birney Creek
Good Condition19 years old250 vehicles/day
Location
| State | Montana |
| County | Rosebud |
| Location | 2.9 Km NW Of Birney |
| Carries | IRR BIA RTE 4 |
| Crosses | Birney Creek |
| Coordinates | 45.43432, -106.48501 |
Condition Ratings
| Overall Condition | Good |
| Channel/Waterway | 8 (Very Good) |
| Culvert | 7 (Good) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Concrete |
| Design | Culvert |
| Total Length | 21.7 ft (6.6 m) |
| Max Span | 9.8 ft (3 m) |
| Deck Width | 32.2 ft (9.8 m) |
| Deck Area | 64.7 sq m |
| Main Spans | 2 |
| Year Built | 2007 |
Traffic
| Avg Daily Traffic | 250 (2024) |
| Truck Traffic | 10% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 624 |
| Inspection Frequency | Every 24 months |
| Owner | Bureau of Indian Affairs |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 00000000000C728 |