US 101 over Lilliwaup R
Fair Condition101 years old3,173 vehicles/day
Location
| State | Washington |
| County | Mason |
| Location | 12.6 S Jefferson Co |
| Carries | US 101 |
| Crosses | Lilliwaup R |
| Coordinates | 47.46344, -123.11428 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 7 (Good) |
| Superstructure | 7 (Good) |
| Substructure | 6 (Satisfactory) |
| Channel/Waterway | 6 (Satisfactory) |
| Scour Critical | 5 — Stable for scour |
Physical Characteristics
| Material | Concrete |
| Design | Tee Beam |
| Total Length | 110.9 ft (33.8 m) |
| Max Span | 40.0 ft (12.2 m) |
| Deck Width | 27.2 ft (8.3 m) |
| Deck Area | 280.5 sq m |
| Main Spans | 3 |
| Year Built | 1925 |
Traffic
| Avg Daily Traffic | 3,173 (2023) |
| Truck Traffic | 13% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 923 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 0000948A0000000 |