Canyon Ferry RD over Helena Valley Canal
Good Condition16 years old1,589 vehicles/day
Location
| State | Montana |
| County | Lewis and Clark |
| Location | 9m NE East Helena |
| Carries | Canyon Ferry RD |
| Crosses | Helena Valley Canal |
| Coordinates | 46.62782, -111.78571 |
Condition Ratings
| Overall Condition | Good |
| Deck | 8 (Very Good) |
| Superstructure | 8 (Very Good) |
| Substructure | 8 (Very Good) |
| Channel/Waterway | 7 (Good) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Prestressed Concrete |
| Design | Stringer/Multi-beam |
| Total Length | 57.4 ft (17.5 m) |
| Max Span | 54.1 ft (16.5 m) |
| Deck Width | 41.3 ft (12.6 m) |
| Deck Area | 220.5 sq m |
| Main Spans | 1 |
| Year Built | 2010 |
Traffic
| Avg Daily Traffic | 1,589 (2023) |
| Truck Traffic | 1% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 424 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | S00284004+07001 |