I-5 N-w Ramp over Dillenbaugh CR
Good Condition50 years old3,324 vehicles/day
Location
| State | Washington |
| County | Lewis |
| Location | 6.8 N Jct SR 508 |
| Carries | I-5 N-w Ramp |
| Crosses | Dillenbaugh CR |
| Coordinates | 46.65880, -122.97761 |
Condition Ratings
| Overall Condition | Good |
| Deck | 7 (Good) |
| Superstructure | 7 (Good) |
| Substructure | 7 (Good) |
| Channel/Waterway | 7 (Good) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Prestressed Concrete Continuous |
| Design | Stringer/Multi-beam |
| Total Length | 136.2 ft (41.5 m) |
| Max Span | 60.0 ft (18.3 m) |
| Deck Width | 28.9 ft (8.8 m) |
| Deck Area | 365.2 sq m |
| Main Spans | 3 |
| Year Built | 1976 |
Traffic
| Avg Daily Traffic | 3,324 (2023) |
| Truck Traffic | 13% |
| Lanes On Bridge | 1 |
Inspection & Ownership
| Last Inspection | 821 |
| Inspection Frequency | Every 48 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 0010134B0000000 |