US 12 over Tucannon River
Poor Condition59 years old1,884 vehicles/day
Location
| State | Washington |
| County | Columbia |
| Location | 21.0 E Walla Wal Co |
| Carries | US 12 |
| Crosses | Tucannon River |
| Coordinates | 46.48856, -117.96136 |
Condition Ratings
| Overall Condition | Poor |
| Deck | 4 (Poor) |
| Superstructure | 6 (Satisfactory) |
| Substructure | 6 (Satisfactory) |
| Channel/Waterway | 6 (Satisfactory) |
| Scour Critical | 5 — Stable for scour |
Physical Characteristics
| Material | Concrete Continuous |
| Design | Box Beam - Multiple |
| Total Length | 219.2 ft (66.8 m) |
| Max Span | 87.9 ft (26.8 m) |
| Deck Width | 37.4 ft (11.4 m) |
| Deck Area | 761.5 sq m |
| Main Spans | 3 |
| Year Built | 1967 |
Traffic
| Avg Daily Traffic | 1,884 (2023) |
| Truck Traffic | 22% |
| 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 | 0008129A0000000 |