Lake Helena DR over Causeway-lake Helena 072
Fair Condition82 years old971 vehicles/day
Location
| State | Montana |
| County | Lewis and Clark |
| Location | 8m N East Helena |
| Carries | Lake Helena DR |
| Crosses | Causeway-lake Helena 072 |
| Coordinates | 46.70215, -111.90109 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 7 (Good) |
| Superstructure | 7 (Good) |
| Substructure | 6 (Satisfactory) |
| Channel/Waterway | 8 (Very Good) |
| Scour Critical | 5 — Stable for scour |
Physical Characteristics
| Material | Concrete |
| Design | Slab |
| Total Length | 24.9 ft (7.6 m) |
| Max Span | 11.2 ft (3.4 m) |
| Deck Width | 22.3 ft (6.8 m) |
| Deck Area | 51.7 sq m |
| Main Spans | 2 |
| Year Built | 1944 |
Traffic
| Avg Daily Traffic | 971 (2023) |
| Truck Traffic | 3% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 323 |
| Inspection Frequency | Every 24 months |
| Owner | County Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | L25100000+07001 |