I-5 (hwy 001) SB over Marquam Bridge Ramp
Fair Condition60 years old42,700 vehicles/day
Location
| State | Oregon |
| County | Multnomah |
| Location | 0.8 Mi S Of Burnside Br |
| Carries | I-5 (hwy 001) SB |
| Crosses | Marquam Bridge Ramp |
| Coordinates | 45.51244, -122.66798 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 5 (Fair) |
| Superstructure | 6 (Satisfactory) |
| Substructure | 6 (Satisfactory) |
| Scour Critical | Not applicable |
Physical Characteristics
| Material | Steel |
| Design | Stringer/Multi-beam |
| Total Length | 2357.9 ft (718.7 m) |
| Max Span | 176.8 ft (53.9 m) |
| Deck Width | 62.0 ft (18.9 m) |
| Deck Area | 13583.4 sq m |
| Main Spans | 13 |
| Year Built | 1966 (reconstructed 1995) |
Traffic
| Avg Daily Traffic | 42,700 (2022) |
| Truck Traffic | 10% |
| Lanes On Bridge | 3 |
| Lanes Under Bridge | 6 |
Inspection & Ownership
| Last Inspection | 623 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 08590C001 30069 |