US 101 over Mud Bay
Fair Condition68 years old21,984 vehicles/day
Location
| State | Washington |
| County | Thurston |
| Location | 1.3 S Jct SR 8 |
| Carries | US 101 |
| Crosses | Mud Bay |
| Coordinates | 47.04519, -122.99075 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 6 (Satisfactory) |
| 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 | 290.0 ft (88.4 m) |
| Max Span | 40.0 ft (12.2 m) |
| Deck Width | 33.5 ft (10.2 m) |
| Deck Area | 901.7 sq m |
| Main Spans | 8 |
| Year Built | 1958 |
Traffic
| Avg Daily Traffic | 21,984 (2023) |
| Truck Traffic | 6% |
| 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 | 0005677B0000000 |