US 101 over Greenhead Slough
Poor Condition92 years old1,911 vehicles/day
Location
| State | Washington |
| County | Pacific |
| Location | 7.0 N Jct SR 103 |
| Carries | US 101 |
| Crosses | Greenhead Slough |
| Coordinates | 46.37181, -123.95017 |
Condition Ratings
| Overall Condition | Poor |
| Deck | 3 (Serious) |
| Superstructure | 6 (Satisfactory) |
| Substructure | 5 (Fair) |
| Channel/Waterway | 8 (Very Good) |
| Scour Critical | 5 — Stable for scour |
Physical Characteristics
| Material | Wood or Timber |
| Design | Stringer/Multi-beam |
| Total Length | 534.1 ft (162.8 m) |
| Max Span | 19.0 ft (5.8 m) |
| Deck Width | 25.9 ft (7.9 m) |
| Deck Area | 1286.1 sq m |
| Main Spans | 28 |
| Year Built | 1934 |
Traffic
| Avg Daily Traffic | 1,911 (2023) |
| Truck Traffic | 10% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 424 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 0001856A0000000 |