Cartersville RD over Little Porcupine CR 027
Fair Condition56 years old100 vehicles/day
Location
| State | Montana |
| County | Rosebud |
| Location | 8m NE Forsyth |
| Carries | Cartersville RD |
| Crosses | Little Porcupine CR 027 |
| Coordinates | 46.30419, -106.57506 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 6 (Satisfactory) |
| Superstructure | 7 (Good) |
| Substructure | 5 (Fair) |
| Channel/Waterway | 5 (Fair) |
| Scour Critical | 5 — Stable for scour |
Physical Characteristics
| Material | Prestressed Concrete |
| Design | Channel Beam |
| Total Length | 74.1 ft (22.6 m) |
| Max Span | 73.2 ft (22.3 m) |
| Deck Width | 17.4 ft (5.3 m) |
| Deck Area | 119.8 sq m |
| Main Spans | 1 |
| Year Built | 1970 |
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 | L44200007+02001 |