I-5 over SR 507 Mellen ST
Fair Condition75 years old32,590 vehicles/day
Location
| State | Washington |
| County | Lewis |
| Location | 3.7 N Jct SR 6 |
| Carries | I-5 |
| Crosses | SR 507 Mellen ST |
| Coordinates | 46.71174, -122.97550 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 6 (Satisfactory) |
| Superstructure | 5 (Fair) |
| Substructure | 6 (Satisfactory) |
| Scour Critical | Not applicable |
Physical Characteristics
| Material | Concrete Continuous |
| Design | Tee Beam |
| Total Length | 94.2 ft (28.7 m) |
| Max Span | 36.1 ft (11 m) |
| Deck Width | 85.0 ft (25.9 m) |
| Deck Area | 743.3 sq m |
| Main Spans | 3 |
| Year Built | 1951 (reconstructed 1972) |
Traffic
| Avg Daily Traffic | 32,590 (2023) |
| Truck Traffic | 17% |
| Lanes On Bridge | 4 |
| Lanes Under Bridge | 2 |
Inspection & Ownership
| Last Inspection | 624 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 0003922A0000000 |