HWY 81sb - HWY 171 over Johnson Ck
Fair Condition58 years old11,588 vehicles/day
Location
| State | Oregon |
| County | Clackamas |
| Location | At HWY 81 & 171 Intchge |
| Carries | HWY 81sb - HWY 171 |
| Crosses | Johnson Ck |
| Coordinates | 45.44847, -122.64284 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 8 (Very Good) |
| Superstructure | 6 (Satisfactory) |
| Substructure | 6 (Satisfactory) |
| Channel/Waterway | 7 (Good) |
| Scour Critical | 3 — Scour critical |
Physical Characteristics
| Material | Concrete Continuous |
| Design | Slab |
| Total Length | 149.9 ft (45.7 m) |
| Max Span | 60.0 ft (18.3 m) |
| Deck Width | 39.0 ft (11.9 m) |
| Deck Area | 543.8 sq m |
| Main Spans | 3 |
| Year Built | 1968 (reconstructed 1991) |
Traffic
| Avg Daily Traffic | 11,588 (2022) |
| Truck Traffic | 1% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | November 2024 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 09670A01EC00551 |