I-5 (hwy 1) over Oregon Slough
Fair Condition39 years old125,775 vehicles/day
Location
| State | Oregon |
| County | Multnomah |
| Location | 0.8 Mi S Of Interstate Br |
| Carries | I-5 (hwy 1) |
| Crosses | Oregon Slough |
| Coordinates | 45.60767, -122.68143 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 6 (Satisfactory) |
| Superstructure | 6 (Satisfactory) |
| Substructure | 6 (Satisfactory) |
| Channel/Waterway | 7 (Good) |
| Scour Critical | 3 — Scour critical |
Physical Characteristics
| Material | Prestressed Concrete |
| Design | Stringer/Multi-beam |
| Total Length | 1325.1 ft (403.9 m) |
| Max Span | 230.0 ft (70.1 m) |
| Deck Width | 147.3 ft (44.9 m) |
| Deck Area | 18135.1 sq m |
| Main Spans | 9 |
| Year Built | 1987 |
Traffic
| Avg Daily Traffic | 125,775 (2022) |
| Truck Traffic | 9% |
| Lanes On Bridge | 8 |
| Lanes Under Bridge | 8 |
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 | 16526 001 30759 |