Hy 1sb To Hy 61nb over Marq Ramp To HWY 61 NB
Fair Condition61 years old24,925 vehicles/day
Location
| State | Oregon |
| County | Multnomah |
| Location | West Marquam Interchange |
| Carries | Hy 1sb To Hy 61nb |
| Crosses | Marq Ramp To HWY 61 NB |
| Coordinates | 45.50542, -122.67536 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 6 (Satisfactory) |
| Superstructure | 6 (Satisfactory) |
| Substructure | 6 (Satisfactory) |
| Scour Critical | Not applicable |
Physical Characteristics
| Material | Steel |
| Design | Stringer/Multi-beam |
| Total Length | 1607.6 ft (490 m) |
| Max Span | 178.5 ft (54.4 m) |
| Deck Width | 37.1 ft (11.3 m) |
| Deck Area | 5,537 sq m |
| Main Spans | 11 |
| Year Built | 1965 |
Traffic
| Avg Daily Traffic | 24,925 (2022) |
| Truck Traffic | 10% |
| Lanes On Bridge | 2 |
| Lanes Under Bridge | 10 |
Inspection & Ownership
| Last Inspection | 924 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 08591B001C30046 |