US 12 over Cowlitz R
Fair Condition58 years old4,771 vehicles/day
Location
| State | Washington |
| County | Lewis |
| Location | 0.8 E Jct SR 122 |
| Carries | US 12 |
| Crosses | Cowlitz R |
| Coordinates | 46.53863, -122.46898 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 7 (Good) |
| Superstructure | 6 (Satisfactory) |
| Substructure | 6 (Satisfactory) |
| Channel/Waterway | 8 (Very Good) |
| Scour Critical | 9 — Foundation above flood level |
Physical Characteristics
| Material | Concrete |
| Design | Arch - Deck |
| Total Length | 1136.2 ft (346.3 m) |
| Max Span | 520.0 ft (158.5 m) |
| Deck Width | 32.8 ft (10 m) |
| Deck Area | 3,463 sq m |
| Main Spans | 1 |
| Year Built | 1968 |
Traffic
| Avg Daily Traffic | 4,771 (2023) |
| Truck Traffic | 22% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 324 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is possibly eligible (requires evaluation) |
| Structure Number | 0008154A0000000 |