US 101 over Slough
Good Condition41 years old7,648 vehicles/day
Location
| State | Washington |
| County | Mason |
| Location | 1.6 S Jct SR 106 |
| Carries | US 101 |
| Crosses | Slough |
| Coordinates | 47.31298, -123.17525 |
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 | Prestressed Concrete |
| Design | Slab |
| Total Length | 160.1 ft (48.8 m) |
| Max Span | 39.0 ft (11.9 m) |
| Deck Width | 41.0 ft (12.5 m) |
| Deck Area | 610 sq m |
| Main Spans | 4 |
| Year Built | 1985 |
Traffic
| Avg Daily Traffic | 7,648 (2023) |
| Truck Traffic | 6% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 721 |
| Inspection Frequency | Every 48 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 0012672A0000000 |