SR 122 over Tilton River
Good Condition65 years old757 vehicles/day
Location
| State | Washington |
| County | Lewis |
| Location | 3.6 E Jct US 12 |
| Carries | SR 122 |
| Crosses | Tilton River |
| Coordinates | 46.55492, -122.53808 |
Condition Ratings
| Overall Condition | Good |
| Deck | 7 (Good) |
| Superstructure | 7 (Good) |
| Substructure | 7 (Good) |
| Channel/Waterway | 4 (Poor) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Steel Continuous |
| Design | Stringer/Multi-beam |
| Total Length | 1113.8 ft (339.5 m) |
| Max Span | 160.1 ft (48.8 m) |
| Deck Width | 27.9 ft (8.5 m) |
| Deck Area | 2885.8 sq m |
| Main Spans | 6 |
| Year Built | 1961 |
Traffic
| Avg Daily Traffic | 757 (2023) |
| Truck Traffic | 16% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 423 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Historical significance is not determined |
| Structure Number | 080050000000000 |