Johnny Ridge RD over Madison River 001
Fair Condition59 years old417 vehicles/day
Location
| State | Montana |
| County | Madison |
| Location | 7m S Cameron |
| Carries | Johnny Ridge RD |
| Crosses | Madison River 001 |
| Coordinates | 45.09696, -111.66260 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 5 (Fair) |
| Superstructure | 7 (Good) |
| Substructure | 7 (Good) |
| Channel/Waterway | 8 (Very Good) |
| Scour Critical | 5 — Stable for scour |
Physical Characteristics
| Material | Prestressed Concrete |
| Design | Stringer/Multi-beam |
| Total Length | 277.9 ft (84.7 m) |
| Max Span | 95.1 ft (29 m) |
| Deck Width | 33.1 ft (10.1 m) |
| Deck Area | 855.5 sq m |
| Main Spans | 3 |
| Year Built | 1967 |
Traffic
| Avg Daily Traffic | 417 (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 | L29092000+07001 |