Upper Imnaha Road over Imnaha River
Fair Condition48 years old94 vehicles/day
Location
| State | Oregon |
| County | Wallowa |
| Location | 12.6 Mi S Of HWY 350 |
| Carries | Upper Imnaha Road |
| Crosses | Imnaha River |
| Coordinates | 45.40390, -116.79050 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 6 (Satisfactory) |
| Superstructure | 8 (Very Good) |
| Substructure | 6 (Satisfactory) |
| Channel/Waterway | 8 (Very Good) |
| Scour Critical | 4 — Foundations need monitoring |
Physical Characteristics
| Material | Prestressed Concrete |
| Design | Tee Beam |
| Total Length | 113.8 ft (34.7 m) |
| Max Span | 111.9 ft (34.1 m) |
| Deck Width | 30.8 ft (9.4 m) |
| Deck Area | 326.2 sq m |
| Main Spans | 1 |
| Year Built | 1978 |
Traffic
| Avg Daily Traffic | 94 (2020) |
| Truck Traffic | 5% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 924 |
| Inspection Frequency | Every 24 months |
| Owner | County Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 16257 727 01259 |