US 12 over Mill Creek
Fair Condition88 years old7,862 vehicles/day
Location
| State | Washington |
| County | Lewis |
| Location | 12.5 E Jct I-5 |
| Carries | US 12 |
| Crosses | Mill Creek |
| Coordinates | 46.53236, -122.61928 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 7 (Good) |
| Superstructure | 7 (Good) |
| Substructure | 6 (Satisfactory) |
| Channel/Waterway | 7 (Good) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Concrete Continuous |
| Design | Tee Beam |
| Total Length | 160.1 ft (48.8 m) |
| Max Span | 89.9 ft (27.4 m) |
| Deck Width | 43.3 ft (13.2 m) |
| Deck Area | 644.2 sq m |
| Main Spans | 3 |
| Year Built | 1938 (reconstructed 1971) |
Traffic
| Avg Daily Traffic | 7,862 (2023) |
| Truck Traffic | 14% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 323 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 0002328A0000000 |