HWY 064 (i-205 Nb) over Columbia Sl & Alderwood
Fair Condition46 years old74,468 vehicles/day
Location
| State | Oregon |
| County | Multnomah |
| Location | 2.2 Mi S Ore-wash Line |
| Carries | HWY 064 (i-205 Nb) |
| Crosses | Columbia Sl & Alderwood |
| Coordinates | 45.56677, -122.55501 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 8 (Very Good) |
| Superstructure | 8 (Very Good) |
| Substructure | 6 (Satisfactory) |
| Channel/Waterway | 7 (Good) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Prestressed Concrete |
| Design | Stringer/Multi-beam |
| Total Length | 311.0 ft (94.8 m) |
| Max Span | 120.1 ft (36.6 m) |
| Deck Width | 69.6 ft (21.2 m) |
| Deck Area | 2009.8 sq m |
| Main Spans | 3 |
| Year Built | 1980 |
Traffic
| Avg Daily Traffic | 74,468 (2022) |
| Truck Traffic | 6% |
| Lanes On Bridge | 4 |
| Lanes Under Bridge | 3 |
Inspection & Ownership
| Last Inspection | 724 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 16055 064 02434 |