I-5 (hwy 001) over Col. Slough & HWY 1 Conn
Fair Condition62 years old85,841 vehicles/day
Location
| State | Oregon |
| County | Multnomah |
| Location | 2.2 Mi S Of Interstate Br |
| Carries | I-5 (hwy 001) |
| Crosses | Col. Slough & HWY 1 Conn |
| Coordinates | 45.58871, -122.68129 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 6 (Satisfactory) |
| Superstructure | 6 (Satisfactory) |
| Substructure | 6 (Satisfactory) |
| Channel/Waterway | 7 (Good) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Prestressed Concrete Continuous |
| Design | Stringer/Multi-beam |
| Total Length | 1238.8 ft (377.6 m) |
| Max Span | 104.0 ft (31.7 m) |
| Deck Width | 115.5 ft (35.2 m) |
| Deck Area | 13291.5 sq m |
| Main Spans | 12 |
| Year Built | 1964 |
Traffic
| Avg Daily Traffic | 85,841 (2022) |
| Truck Traffic | 9% |
| Lanes On Bridge | 5 |
| Lanes Under Bridge | 3 |
Inspection & Ownership
| Last Inspection | December 2024 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 08883 001 30622 |