5th AVE S over Clark Fork 085
Fair Condition51 years old100 vehicles/day
Location
| State | Montana |
| County | Sanders |
| Location | 1m SW Plains |
| Carries | 5th AVE S |
| Crosses | Clark Fork 085 |
| Coordinates | 47.45458, -114.89354 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 5 (Fair) |
| Superstructure | 7 (Good) |
| Substructure | 6 (Satisfactory) |
| Channel/Waterway | 6 (Satisfactory) |
| Scour Critical | 5 — Stable for scour |
Physical Characteristics
| Material | Steel Continuous |
| Design | Stringer/Multi-beam |
| Total Length | 979.7 ft (298.6 m) |
| Max Span | 148.0 ft (45.1 m) |
| Deck Width | 27.9 ft (8.5 m) |
| Deck Area | 2538.1 sq m |
| Main Spans | 7 |
| Year Built | 1975 |
Traffic
| Avg Daily Traffic | 100 (2025) |
| Truck Traffic | 3% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 823 |
| Inspection Frequency | Every 24 months |
| Owner | County Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | L45139000+02001 |