S Main ST over Rock Creek 046
Fair Condition39 years old896 vehicles/day
Location
| State | Montana |
| County | Carbon |
| Location | Joliet |
| Carries | S Main ST |
| Crosses | Rock Creek 046 |
| Coordinates | 45.48109, -108.96797 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 6 (Satisfactory) |
| Superstructure | 7 (Good) |
| Substructure | 6 (Satisfactory) |
| Channel/Waterway | 6 (Satisfactory) |
| Scour Critical | 4 — Foundations need monitoring |
Physical Characteristics
| Material | Steel Continuous |
| Design | Stringer/Multi-beam |
| Total Length | 139.4 ft (42.5 m) |
| Max Span | 67.9 ft (20.7 m) |
| Deck Width | 32.8 ft (10 m) |
| Deck Area | 425 sq m |
| Main Spans | 2 |
| Year Built | 1987 |
Traffic
| Avg Daily Traffic | 896 (2023) |
| Truck Traffic | 3% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | October 2024 |
| Inspection Frequency | Every 24 months |
| Owner | County Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | L05101000+01001 |