S 89 over Int South Dillon I 15
Fair Condition43 years old1,804 vehicles/day
Location
| State | Montana |
| County | Beaverhead |
| Location | Dillon |
| Carries | S 89 |
| Crosses | Int South Dillon I 15 |
| Coordinates | 45.20688, -112.65463 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 5 (Fair) |
| Superstructure | 7 (Good) |
| Substructure | 6 (Satisfactory) |
| Scour Critical | Not applicable |
Physical Characteristics
| Material | Prestressed Concrete |
| Design | Stringer/Multi-beam |
| Total Length | 285.4 ft (87 m) |
| Max Span | 95.1 ft (29 m) |
| Deck Width | 50.2 ft (15.3 m) |
| Deck Area | 1331.1 sq m |
| Main Spans | 4 |
| Year Built | 1983 |
Traffic
| Avg Daily Traffic | 1,804 (2023) |
| Truck Traffic | 2% |
| Lanes On Bridge | 2 |
| Lanes Under Bridge | 4 |
Inspection & Ownership
| Last Inspection | 224 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | P00089000+00001 |