County Road 321 over Charley Creek 015
Good Condition28 years old100 vehicles/day
Location
| State | Montana |
| County | Richland |
| Location | 53m NW Sidney |
| Carries | County Road 321 |
| Crosses | Charley Creek 015 |
| Coordinates | 48.11365, -104.86078 |
Condition Ratings
| Overall Condition | Good |
| Deck | 7 (Good) |
| Superstructure | 7 (Good) |
| Substructure | 7 (Good) |
| Channel/Waterway | 7 (Good) |
| Scour Critical | 5 — Stable for scour |
Physical Characteristics
| Material | Prestressed Concrete |
| Design | Tee Beam |
| Total Length | 75.8 ft (23.1 m) |
| Max Span | 71.5 ft (21.8 m) |
| Deck Width | 29.9 ft (9.1 m) |
| Deck Area | 210.2 sq m |
| Main Spans | 1 |
| Year Built | 1998 |
Traffic
| Avg Daily Traffic | 100 (2025) |
| Truck Traffic | 3% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | November 2023 |
| Inspection Frequency | Every 24 months |
| Owner | County Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | L42017008+01001 |