US 12 over Prickly Pear Creek
Good Condition48 years old15,333 vehicles/day
Location
| State | Montana |
| County | Lewis and Clark |
| Location | East Helena |
| Carries | US 12 |
| Crosses | Prickly Pear Creek |
| Coordinates | 46.58784, -111.91950 |
Condition Ratings
| Overall Condition | Good |
| Deck | 7 (Good) |
| Superstructure | 7 (Good) |
| Substructure | 7 (Good) |
| Channel/Waterway | 6 (Satisfactory) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Prestressed Concrete |
| Design | Stringer/Multi-beam |
| Total Length | 77.1 ft (23.5 m) |
| Max Span | 75.1 ft (22.9 m) |
| Deck Width | 94.2 ft (28.7 m) |
| Deck Area | 674.5 sq m |
| Main Spans | 1 |
| Year Built | 1978 |
Traffic
| Avg Daily Traffic | 15,333 (2023) |
| Truck Traffic | 2% |
| Lanes On Bridge | 4 |
Inspection & Ownership
| Last Inspection | November 2024 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | P00008049+03341 |