Structure 5422A0000000 · Snohomish County, WA

I-5 over 44th AVE NW

Carries I-5 over 44th AVE NW, 4.1 N Jct SR 532.

Overall conditionFair

Set by its lowest-rated component: Superstructure at 6 of 9.

How ratings work
Deck7/9 · Good
Superstructuresets the rating6/9 · Satisfactory
Substructure7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT119 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 6/9 · sets the ratingSubstructure 7/9

119 ft end to end, longest span 47 ft. Lengths and the car on the deck are drawn to the same scale. Each part is colored by its latest inspection rating. The inventory records lengths but not heights or the layout of the shorter spans, so those are drawn as typical for a slab bridge.

Built1957rebuilt 1971
Length119.1 ft36.3 m
Daily traffic33,933counted 2023
Last inspectedMay 2024every 24 months

Location

StateWashington
CountySnohomish
Location4.1 N Jct SR 532
CarriesI-5
Crosses44th AVE NW
Coordinates48.28717, -122.29180

Physical Characteristics

MaterialConcrete Continuous
DesignSlab
Total Length119.1 ft (36.3 m)
Max Span46.9 ft (14.3 m)
Deck Width61.0 ft (18.6 m)
Deck Area675.2 sq m
Main Spans3
Year Built1957 (reconstructed 1971)

Traffic

Avg Daily Traffic33,933 (2023)
Truck Traffic10%
Lanes On Bridge3
Lanes Under Bridge2

Inspection & Ownership

Last InspectionMay 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number0005422A0000000

How Bridge Ratings Work

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."

0Failed
1Imminent failure
2Critical
3Serious
4Poor
5Fair
6Satisfactory
7Good
8Very good
9Excellent
Good · lowest component 7–9
Fair · lowest component 5–6
Poor · lowest component 0–4

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.

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