Or 78 (hwy 442) over Silvies Slough(11th Br)
Good Condition55 years old1,299 vehicles/day
Location
| State | Oregon |
| County | Harney |
| Location | 2.7 Mi. E. Jct. US 20/395 |
| Carries | Or 78 (hwy 442) |
| Crosses | Silvies Slough(11th Br) |
| Coordinates | 43.58588, -118.99990 |
Condition Ratings
| Overall Condition | Good |
| Deck | 7 (Good) |
| Superstructure | 7 (Good) |
| Substructure | 8 (Very Good) |
| Channel/Waterway | 7 (Good) |
| Scour Critical | 3 — Scour critical |
Physical Characteristics
| Material | Prestressed Concrete |
| Design | Slab |
| Total Length | 41.0 ft (12.5 m) |
| Max Span | 40.0 ft (12.2 m) |
| Deck Width | 36.1 ft (11 m) |
| Deck Area | 137.5 sq m |
| Main Spans | 1 |
| Year Built | 1971 |
Traffic
| Avg Daily Traffic | 1,299 (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 | 03589A442 00274 |