Milligan Canyon RD over Int Milligan-i 90 004
Fair Condition57 years old100 vehicles/day
Location
| State | Montana |
| County | Jefferson |
| Location | 11m W Cardwell |
| Carries | Milligan Canyon RD |
| Crosses | Int Milligan-i 90 004 |
| Coordinates | 45.91477, -111.74281 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 6 (Satisfactory) |
| Superstructure | 6 (Satisfactory) |
| Substructure | 6 (Satisfactory) |
| Scour Critical | Not applicable |
Physical Characteristics
| Material | Steel Continuous |
| Design | Stringer/Multi-beam |
| Total Length | 307.4 ft (93.7 m) |
| Max Span | 95.1 ft (29 m) |
| Deck Width | 34.1 ft (10.4 m) |
| Deck Area | 974.5 sq m |
| Main Spans | 4 |
| Year Built | 1969 |
Traffic
| Avg Daily Traffic | 100 (2025) |
| Truck Traffic | 3% |
| Lanes On Bridge | 2 |
| Lanes Under Bridge | 4 |
Inspection & Ownership
| Last Inspection | 524 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | L22858000+01001 |