SR 507 over Skookumchuck River
Good Condition48 years old3,920 vehicles/day
Location
| State | Washington |
| County | Lewis |
| Location | 4.5 N Jct I-5 |
| Carries | SR 507 |
| Crosses | Skookumchuck River |
| Coordinates | 46.75342, -122.94086 |
Condition Ratings
| Overall Condition | Good |
| Deck | 7 (Good) |
| Superstructure | 7 (Good) |
| Substructure | 7 (Good) |
| Channel/Waterway | 6 (Satisfactory) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Prestressed Concrete Continuous |
| Design | Stringer/Multi-beam |
| Total Length | 241.1 ft (73.5 m) |
| Max Span | 117.1 ft (35.7 m) |
| Deck Width | 39.0 ft (11.9 m) |
| Deck Area | 874.6 sq m |
| Main Spans | 3 |
| Year Built | 1978 |
Traffic
| Avg Daily Traffic | 3,920 (2023) |
| Truck Traffic | 10% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | November 2024 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 0010884A0000000 |