Or 78 (hwy 442) over Silvies Slough(17th Br)
Good Condition55 years old1,176 vehicles/day
Location
| State | Oregon |
| County | Harney |
| Location | 5.7 Mi. Se. Jct US 20/395 |
| Carries | Or 78 (hwy 442) |
| Crosses | Silvies Slough(17th Br) |
| Coordinates | 43.56425, -118.95300 |
Condition Ratings
| Overall Condition | Good |
| Deck | 7 (Good) |
| Superstructure | 7 (Good) |
| Substructure | 7 (Good) |
| Channel/Waterway | 7 (Good) |
| Scour Critical | 3 — Scour critical |
Physical Characteristics
| Material | Prestressed Concrete |
| Design | Slab |
| Total Length | 30.8 ft (9.4 m) |
| Max Span | 29.9 ft (9.1 m) |
| Deck Width | 36.1 ft (11 m) |
| Deck Area | 103.4 sq m |
| Main Spans | 1 |
| Year Built | 1971 |
Traffic
| Avg Daily Traffic | 1,176 (2022) |
| Truck Traffic | 33% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | October 2024 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 06834A442 00570 |