Project And Visitr over Bonneville Dam
Fair Condition91 years old1,000 vehicles/day
Location
| State | Oregon |
| County | Multnomah |
| Location | Old Lock Swing Bridge |
| Carries | Project And Visitr |
| Crosses | Bonneville Dam |
| Coordinates | 45.63880, -121.94848 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 5 (Fair) |
| Superstructure | 5 (Fair) |
| Substructure | 5 (Fair) |
| Channel/Waterway | 9 (Excellent) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Steel |
| Design | Girder and Floorbeam |
| Total Length | 247.4 ft (75.4 m) |
| Max Span | 99.7 ft (30.4 m) |
| Deck Width | 25.9 ft (7.9 m) |
| Deck Area | 595.7 sq m |
| Main Spans | 1 |
| Year Built | 1935 (reconstructed 1950) |
Traffic
| Avg Daily Traffic | 1,000 (2024) |
| Truck Traffic | 15% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 924 |
| Inspection Frequency | Every 24 months |
| Owner | Corps of Engineers |
| Historical Significance | Bridge is on the National Register of Historic Places |
| Structure Number | CEPNPPOR000BD01 |