Willoughby LN over Supply Ditch 085
Good Condition12 years old641 vehicles/day
Location
| State | Montana |
| County | Ravalli |
| Location | 4m S Stevensville |
| Carries | Willoughby LN |
| Crosses | Supply Ditch 085 |
| Coordinates | 46.44521, -114.07124 |
Condition Ratings
| Overall Condition | Good |
| Deck | 7 (Good) |
| Superstructure | 7 (Good) |
| Substructure | 7 (Good) |
| Channel/Waterway | 8 (Very Good) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Prestressed Concrete |
| Design | Channel Beam |
| Total Length | 46.9 ft (14.3 m) |
| Max Span | 46.9 ft (14.3 m) |
| Deck Width | 30.5 ft (9.3 m) |
| Deck Area | 133.0 sq m |
| Main Spans | 1 |
| Year Built | 2014 |
Traffic
| Avg Daily Traffic | 641 (2023) |
| Truck Traffic | 3% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | December 2024 |
| Inspection Frequency | Every 24 months |
| Owner | County Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | L41311001+02001 |