21st ST SE over Mill Creek
Fair Condition66 years old4,484 vehicles/day
Location
| State | Oregon |
| County | Marion |
| Location | 100 Block |
| Carries | 21st ST SE |
| Crosses | Mill Creek |
| Coordinates | 44.93360, -123.01648 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 6 (Satisfactory) |
| Superstructure | 6 (Satisfactory) |
| Substructure | 5 (Fair) |
| Channel/Waterway | 5 (Fair) |
| Scour Critical | 3 — Scour critical |
Physical Characteristics
| Material | Concrete Continuous |
| Design | Slab |
| Total Length | 91.9 ft (28 m) |
| Max Span | 18.0 ft (5.5 m) |
| Deck Width | 44.0 ft (13.4 m) |
| Deck Area | 375.2 sq m |
| Main Spans | 5 |
| Year Built | 1960 |
Traffic
| Avg Daily Traffic | 4,484 (2020) |
| Truck Traffic | 3% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 823 |
| Inspection Frequency | Every 24 months |
| Owner | City/Municipal Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 470240000 |