Mt 141 over Threemile Creek
Good Condition65 years old1,594 vehicles/day
Location
| State | Montana |
| County | Powell |
| Location | 2 M N Avon |
| Carries | Mt 141 |
| Crosses | Threemile Creek |
| Coordinates | 46.61771, -112.61257 |
Condition Ratings
| Overall Condition | Good |
| Channel/Waterway | 7 (Good) |
| Culvert | 7 (Good) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Steel |
| Design | Culvert |
| Total Length | 26.9 ft (8.2 m) |
| Max Span | 6.9 ft (2.1 m) |
| Deck Width | 27.9 ft (8.5 m) |
| Deck Area | 69.7 sq m |
| Main Spans | 3 |
| Year Built | 1961 |
Traffic
| Avg Daily Traffic | 1,594 (2023) |
| Truck Traffic | 8% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | December 2024 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 000000202208060 |