SR 4 over Cowlitz R / Rr / SR 411
Fair Condition75 years old9,179 vehicles/day
Location
| State | Washington |
| County | Cowlitz |
| Location | 0.1 E Jct SR 411 Sp |
| Carries | SR 4 |
| Crosses | Cowlitz R / Rr / SR 411 |
| Coordinates | 46.14729, -122.91797 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 6 (Satisfactory) |
| Superstructure | 6 (Satisfactory) |
| Substructure | 5 (Fair) |
| Channel/Waterway | 8 (Very Good) |
| Scour Critical | 5 — Stable for scour |
Physical Characteristics
| Material | Steel Continuous |
| Design | Truss - Thru |
| Total Length | 1710.0 ft (521.2 m) |
| Max Span | 255.9 ft (78 m) |
| Deck Width | 58.1 ft (17.7 m) |
| Deck Area | 9225.2 sq m |
| Main Spans | 3 |
| Year Built | 1951 |
Traffic
| Avg Daily Traffic | 9,179 (2023) |
| Truck Traffic | 2% |
| Lanes On Bridge | 4 |
| Lanes Under Bridge | 8 |
Inspection & Ownership
| Last Inspection | 922 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is eligible for the National Register |
| Structure Number | 0003717A0000000 |