County Road 405 over Usbr Main Canal 005
Good Condition20 years old100 vehicles/day
Location
| State | Montana |
| County | Richland |
| Location | 6m SW Sidney |
| Carries | County Road 405 |
| Crosses | Usbr Main Canal 005 |
| Coordinates | 47.64467, -104.24402 |
Condition Ratings
| Overall Condition | Good |
| Deck | 7 (Good) |
| Superstructure | 7 (Good) |
| Substructure | 7 (Good) |
| Channel/Waterway | 8 (Very Good) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Prestressed Concrete |
| Design | Tee Beam |
| Total Length | 65.9 ft (20.1 m) |
| Max Span | 65.9 ft (20.1 m) |
| Deck Width | 36.1 ft (11 m) |
| Deck Area | 221.1 sq m |
| Main Spans | 1 |
| Year Built | 2006 |
Traffic
| Avg Daily Traffic | 100 (2025) |
| Truck Traffic | 3% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 223 |
| Inspection Frequency | Every 24 months |
| Owner | County Highway Agency |
| Historical Significance | Bridge is eligible for the National Register |
| Structure Number | L42405002+00001 |