Upper N Fork RD over N Fk Bighole River 064
Poor Condition49 years old100 vehicles/day
Location
| State | Montana |
| County | Beaverhead |
| Location | 6m NW Wisdom |
| Carries | Upper N Fork RD |
| Crosses | N Fk Bighole River 064 |
| Coordinates | 45.69589, -113.56102 |
Condition Ratings
| Overall Condition | Poor |
| Deck | 6 (Satisfactory) |
| Superstructure | 5 (Fair) |
| Substructure | 4 (Poor) |
| Channel/Waterway | 6 (Satisfactory) |
| Scour Critical | 5 — Stable for scour |
Physical Characteristics
| Material | Steel |
| Design | Stringer/Multi-beam |
| Total Length | 45.9 ft (14 m) |
| Max Span | 44.9 ft (13.7 m) |
| Deck Width | 20.3 ft (6.2 m) |
| Deck Area | 86.8 sq m |
| Main Spans | 1 |
| Year Built | 1977 |
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 | L01004007+00001 |