Canyon Ferry RD over Helena Valley Canal
Good Condition17 years old4,835 vehicles/day
Location
| State | Montana |
| County | Lewis and Clark |
| Location | 5m E Helena |
| Carries | Canyon Ferry RD |
| Crosses | Helena Valley Canal |
| Coordinates | 46.61718, -111.87917 |
Condition Ratings
| Overall Condition | Good |
| Deck | 8 (Very Good) |
| Superstructure | 8 (Very Good) |
| Substructure | 7 (Good) |
| Channel/Waterway | 7 (Good) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Prestressed Concrete |
| Design | Stringer/Multi-beam |
| Total Length | 53.5 ft (16.3 m) |
| Max Span | 50.9 ft (15.5 m) |
| Deck Width | 41.3 ft (12.6 m) |
| Deck Area | 205.4 sq m |
| Main Spans | 1 |
| Year Built | 2009 |
Traffic
| Avg Daily Traffic | 4,835 (2023) |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 324 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | S00430004+07731 |