Big Porcupine RD over Big Porcupine CR 010
Fair Condition34 years old100 vehicles/day
Location
| State | Montana |
| County | Rosebud |
| Location | 5m NE Vananda |
| Carries | Big Porcupine RD |
| Crosses | Big Porcupine CR 010 |
| Coordinates | 46.44092, -106.93467 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 7 (Good) |
| Superstructure | 8 (Very Good) |
| Substructure | 5 (Fair) |
| Channel/Waterway | 7 (Good) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Prestressed Concrete |
| Design | Tee Beam |
| Total Length | 87.9 ft (26.8 m) |
| Max Span | 87.9 ft (26.8 m) |
| Deck Width | 28.5 ft (8.7 m) |
| Deck Area | 233.2 sq m |
| Main Spans | 1 |
| Year Built | 1992 |
Traffic
| Avg Daily Traffic | 100 (2025) |
| Truck Traffic | 3% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 924 |
| Inspection Frequency | Every 24 months |
| Owner | County Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | L44126007+00001 |