Sr509 over Thea Foss Watrway & D ST
Fair Condition30 years old18,728 vehicles/day
Location
| State | Washington |
| County | Pierce |
| Location | 0.1 N Jct I-705 |
| Carries | Sr509 |
| Crosses | Thea Foss Watrway & D ST |
| Coordinates | 47.24333, -122.43378 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 6 (Satisfactory) |
| Superstructure | 6 (Satisfactory) |
| Substructure | 7 (Good) |
| Channel/Waterway | 8 (Very Good) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Prestressed Concrete Continuous |
| Design | Stayed Girder |
| Total Length | 992.1 ft (302.4 m) |
| Max Span | 350.1 ft (106.7 m) |
| Deck Width | 94.8 ft (28.9 m) |
| Deck Area | 8739.4 sq m |
| Main Spans | 2 |
| Year Built | 1996 |
Traffic
| Avg Daily Traffic | 18,728 (2023) |
| Truck Traffic | 5% |
| Lanes On Bridge | 4 |
| Lanes Under Bridge | 2 |
Inspection & Ownership
| Last Inspection | 923 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Historical significance is not determined |
| Structure Number | 0014507A0000000 |