US 12 over Creek Twin Canyon
Good Condition59 years old4,771 vehicles/day
Location
| State | Washington |
| County | Lewis |
| Location | 2.6 E Jct SR 122 |
| Carries | US 12 |
| Crosses | Creek Twin Canyon |
| Coordinates | 46.54036, -122.43436 |
Condition Ratings
| Overall Condition | Good |
| Deck | 7 (Good) |
| Superstructure | 7 (Good) |
| Substructure | 7 (Good) |
| Channel/Waterway | 8 (Very Good) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Steel Continuous |
| Design | Stringer/Multi-beam |
| Total Length | 410.1 ft (125 m) |
| Max Span | 162.1 ft (49.4 m) |
| Deck Width | 33.1 ft (10.1 m) |
| Deck Area | 1262.5 sq m |
| Main Spans | 3 |
| Year Built | 1967 |
Traffic
| Avg Daily Traffic | 4,771 (2023) |
| Truck Traffic | 22% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 224 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 0007973B0000000 |