S 89 over Int North Dillon I 15
Fair Condition53 years old4,241 vehicles/day
Location
| State | Montana |
| County | Beaverhead |
| Location | Dillon |
| Carries | S 89 |
| Crosses | Int North Dillon I 15 |
| Coordinates | 45.22463, -112.64256 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 7 (Good) |
| Superstructure | 7 (Good) |
| Substructure | 6 (Satisfactory) |
| Scour Critical | Not applicable |
Physical Characteristics
| Material | Prestressed Concrete |
| Design | Stringer/Multi-beam |
| Total Length | 294.6 ft (89.8 m) |
| Max Span | 100.1 ft (30.5 m) |
| Deck Width | 49.9 ft (15.2 m) |
| Deck Area | 1365.0 sq m |
| Main Spans | 4 |
| Year Built | 1973 |
Traffic
| Avg Daily Traffic | 4,241 (2023) |
| Truck Traffic | 5% |
| Lanes On Bridge | 2 |
| Lanes Under Bridge | 4 |
Inspection & Ownership
| Last Inspection | December 2024 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | P00089003+02321 |