US 12 over Yellowstone River
Fair Condition68 years old722 vehicles/day
Location
| State | Montana |
| County | Rosebud |
| Location | W Edge Forsyth |
| Carries | US 12 |
| Crosses | Yellowstone River |
| Coordinates | 46.26459, -106.69612 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 6 (Satisfactory) |
| Superstructure | 5 (Fair) |
| Substructure | 6 (Satisfactory) |
| Channel/Waterway | 6 (Satisfactory) |
| Scour Critical | 5 — Stable for scour |
Physical Characteristics
| Material | Steel Continuous |
| Design | Girder and Floorbeam |
| Total Length | 829.7 ft (252.9 m) |
| Max Span | 183.1 ft (55.8 m) |
| Deck Width | 36.7 ft (11.2 m) |
| Deck Area | 2832.5 sq m |
| Main Spans | 4 |
| Year Built | 1958 (reconstructed 2012) |
Traffic
| Avg Daily Traffic | 722 (2023) |
| Truck Traffic | 4% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 823 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | P00014270+03311 |