S 89 over Local-blacktail Cr-rr
Fair Condition52 years old4,241 vehicles/day
Location
| State | Montana |
| County | Beaverhead |
| Location | Dillon |
| Carries | S 89 |
| Crosses | Local-blacktail Cr-rr |
| Coordinates | 45.22827, -112.63176 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 7 (Good) |
| Superstructure | 7 (Good) |
| Substructure | 5 (Fair) |
| Channel/Waterway | 8 (Very Good) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Prestressed Concrete |
| Design | Stringer/Multi-beam |
| Total Length | 321.9 ft (98.1 m) |
| Max Span | 76.4 ft (23.3 m) |
| Deck Width | 46.6 ft (14.2 m) |
| Deck Area | 1393.0 sq m |
| Main Spans | 5 |
| Year Built | 1974 |
Traffic
| Avg Daily Traffic | 4,241 (2023) |
| Truck Traffic | 5% |
| Lanes On Bridge | 2 |
| Lanes Under Bridge | 2 |
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 | P00089002+06021 |