HWY 603 over Chehalis River
Fair Condition35 years old1,697 vehicles/day
Location
| State | Washington |
| County | Lewis |
| Location | 0.15 S.e. SR 6 |
| Carries | HWY 603 |
| Crosses | Chehalis River |
| Coordinates | 46.64167, -123.01333 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 6 (Satisfactory) |
| Superstructure | 8 (Very Good) |
| Substructure | 8 (Very Good) |
| Channel/Waterway | 6 (Satisfactory) |
| Scour Critical | 3 — Scour critical |
Physical Characteristics
| Material | Prestressed Concrete Continuous |
| Design | Stringer/Multi-beam |
| Total Length | 377.0 ft (114.9 m) |
| Max Span | 165.0 ft (50.3 m) |
| Deck Width | 31.2 ft (9.5 m) |
| Deck Area | 1091.5 sq m |
| Main Spans | 1 |
| Year Built | 1991 |
Traffic
| Avg Daily Traffic | 1,697 (2022) |
| Truck Traffic | 18% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 123 |
| Inspection Frequency | Every 24 months |
| Owner | County Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 085987000000000 |