US 12 over Porter Creek
Fair Condition89 years old5,851 vehicles/day
Location
| State | Washington |
| County | Grays Harbor |
| Location | 6.1 E Jct SR 8 |
| Carries | US 12 |
| Crosses | Porter Creek |
| Coordinates | 46.93778, -123.31069 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 6 (Satisfactory) |
| Superstructure | 6 (Satisfactory) |
| Substructure | 6 (Satisfactory) |
| Channel/Waterway | 6 (Satisfactory) |
| Scour Critical | 4 — Foundations need monitoring |
Physical Characteristics
| Material | Concrete Continuous |
| Design | Tee Beam |
| Total Length | 146.0 ft (44.5 m) |
| Max Span | 65.0 ft (19.8 m) |
| Deck Width | 30.5 ft (9.3 m) |
| Deck Area | 413.9 sq m |
| Main Spans | 3 |
| Year Built | 1937 |
Traffic
| Avg Daily Traffic | 5,851 (2023) |
| Truck Traffic | 13% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | October 2024 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 0002236C0000000 |