US 12 over Cowlitz R Overflow
Good Condition68 years old2,712 vehicles/day
Location
| State | Washington |
| County | Lewis |
| Location | 8.5 E Jct SR 131 |
| Carries | US 12 |
| Crosses | Cowlitz R Overflow |
| Coordinates | 46.53373, -121.77939 |
Condition Ratings
| Overall Condition | Good |
| Deck | 7 (Good) |
| Superstructure | 7 (Good) |
| Substructure | 7 (Good) |
| Channel/Waterway | 8 (Very Good) |
| Scour Critical | 5 — Stable for scour |
Physical Characteristics
| Material | Concrete Continuous |
| Design | Slab |
| Total Length | 129.9 ft (39.6 m) |
| Max Span | 27.9 ft (8.5 m) |
| Deck Width | 30.8 ft (9.4 m) |
| Deck Area | 372.2 sq m |
| Main Spans | 5 |
| Year Built | 1958 |
Traffic
| Avg Daily Traffic | 2,712 (2023) |
| Truck Traffic | 19% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 223 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 0005889B0000000 |