Larson RD over So Slough Stillaguamish
Fair Condition63 years old3,455 vehicles/day
Location
| State | Washington |
| County | Snohomish |
| Location | 0.6 W Jct Pioneer Hy |
| Carries | Larson RD |
| Crosses | So Slough Stillaguamish |
| Coordinates | 48.19896, -122.26514 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 6 (Satisfactory) |
| Superstructure | 6 (Satisfactory) |
| Substructure | 7 (Good) |
| Channel/Waterway | 6 (Satisfactory) |
| Scour Critical | 5 — Stable for scour |
Physical Characteristics
| Material | Steel Continuous |
| Design | Stringer/Multi-beam |
| Total Length | 301.8 ft (92 m) |
| Max Span | 160.1 ft (48.8 m) |
| Deck Width | 30.5 ft (9.3 m) |
| Deck Area | 855.6 sq m |
| Main Spans | 1 |
| Year Built | 1963 |
Traffic
| Avg Daily Traffic | 3,455 (2023) |
| Truck Traffic | 13% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 624 |
| Inspection Frequency | Every 24 months |
| Owner | County Highway Agency |
| Historical Significance | Historical significance is not determined |
| Structure Number | 079892000000000 |