Cinnabar Basin RD over Yellowstone River 068
Fair Condition18 years old100 vehicles/day
Location
| State | Montana |
| County | Park |
| Location | Corwin Springs |
| Carries | Cinnabar Basin RD |
| Crosses | Yellowstone River 068 |
| Coordinates | 45.11157, -110.79304 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 6 (Satisfactory) |
| Superstructure | 7 (Good) |
| Substructure | 7 (Good) |
| Channel/Waterway | 7 (Good) |
| Scour Critical | 5 — Stable for scour |
Physical Characteristics
| Material | Prestressed Concrete |
| Design | Stringer/Multi-beam |
| Total Length | 347.8 ft (106 m) |
| Max Span | 123.0 ft (37.5 m) |
| Deck Width | 32.5 ft (9.9 m) |
| Deck Area | 1049.4 sq m |
| Main Spans | 3 |
| Year Built | 2008 |
Traffic
| Avg Daily Traffic | 100 (2025) |
| Truck Traffic | 3% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 724 |
| Inspection Frequency | Every 24 months |
| Owner | County Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | L34322000+02001 |