Structure 88387000000000 · Snohomish County, WA
Carries 51st Avenue NE over Quilceda Creek, 1.3 Mi E Int I-5.
A culvert 21 ft across. Lengths are drawn to scale; at this length a semi-truck would be a speck. Each part is colored by its latest inspection rating. The inventory records lengths but not heights, so those are drawn as typical for a culvert.
| State | Washington |
| County | Snohomish |
| Location | 1.3 Mi E Int I-5 |
| Carries | 51st Avenue NE |
| Crosses | Quilceda Creek |
| Coordinates | 48.10486, -122.16226 |
| Material | Concrete |
| Design | Culvert |
| Total Length | 21.0 ft (6.4 m) |
| Max Span | 21.0 ft (6.4 m) |
| Deck Area | 85.8 sq m |
| Main Spans | 1 |
| Year Built | 2008 |
| Avg Daily Traffic | 7,619 (2019) |
| Truck Traffic | 5% |
| Lanes On Bridge | 3 |
| Last Inspection | November 2023 |
| Inspection Frequency | Every 24 months |
| Owner | City/Municipal Highway Agency |
| Historical Significance | Historical significance is not determined |
| Scour Critical | 5 — Stable for scour |
| Structure Number | 088387000000000 |
Inspectors rate each major part of a bridge (the deck you drive on, the superstructure of beams that holds it up, and the substructure of piers and abutments beneath) on a 0–9 scale. A bridge's overall condition is its lowest of those ratings, so one deteriorated component makes the whole bridge "poor."
A poor rating is not a closure. It means the bridge is flagged for priority repair or replacement; bridges judged unsafe are closed or posted with weight limits. The waterway (channel) rating is reported, but it does not count toward the overall classification.