I-5 over Dillenbaugh Creek
Good Condition74 years old32,739 vehicles/day
Location
| State | Washington |
| County | Lewis |
| Location | 6.8 N Jct SR 508 |
| Carries | I-5 |
| Crosses | Dillenbaugh Creek |
| Coordinates | 46.65874, -122.97792 |
Condition Ratings
| Overall Condition | Good |
| Deck | 7 (Good) |
| Superstructure | 7 (Good) |
| Substructure | 7 (Good) |
| Channel/Waterway | 8 (Very Good) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Concrete Continuous |
| Design | Slab |
| Total Length | 162.1 ft (49.4 m) |
| Max Span | 22.0 ft (6.7 m) |
| Deck Width | 84.0 ft (25.6 m) |
| Deck Area | 1264.6 sq m |
| Main Spans | 8 |
| Year Built | 1952 (reconstructed 1979) |
Traffic
| Avg Daily Traffic | 32,739 (2023) |
| Truck Traffic | 21% |
| Lanes On Bridge | 4 |
Inspection & Ownership
| Last Inspection | 924 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 0011430A0000000 |