Project Access over Bonneville Dam
Fair Condition119 years old20 vehicles/day
Location
| State | Oregon |
| County | Multnomah |
| Location | Tanner Creek Spur Bridge |
| Carries | Project Access |
| Crosses | Bonneville Dam |
| Coordinates | 45.63252, -121.96045 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 5 (Fair) |
| Superstructure | 5 (Fair) |
| Substructure | 6 (Satisfactory) |
| Channel/Waterway | 8 (Very Good) |
| Scour Critical | 7 — Countermeasures installed |
Physical Characteristics
| Material | Steel |
| Design | Girder and Floorbeam |
| Total Length | 100.1 ft (30.5 m) |
| Max Span | 98.1 ft (29.9 m) |
| Deck Width | 16.4 ft (5 m) |
| Deck Area | 152.5 sq m |
| Main Spans | 1 |
| Year Built | 1907 |
Traffic
| Avg Daily Traffic | 20 (2024) |
| Truck Traffic | 10% |
| Lanes On Bridge | 1 |
Inspection & Ownership
| Last Inspection | 924 |
| Inspection Frequency | Every 24 months |
| Owner | Corps of Engineers |
| Historical Significance | Historical significance is not determined |
| Structure Number | CEPNPPOR000BD04 |