Structure 6085A0000000 · King County, WA

Exp N To 42nd Ramp over Pasadena Pl NE

Carries Exp N To 42nd Ramp over Pasadena Pl NE, 4.6 N Jct I-90.

Overall conditionGood

Set by its lowest-rated component: Superstructure and Substructure at 7 of 9.

How ratings work
Deck8/9 · Very Good
Superstructuresets the rating7/9 · Good
Substructuresets the rating7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT273 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 8/9Superstructure 7/9 · sets the ratingSubstructure 7/9 · sets the rating

273 ft end to end, longest span 104 ft: about 4 semi-trucks nose to tail. Lengths and the semi-truck 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 box-beam bridge.

Built196264 years old
Length273.0 ft83.2 m
Daily traffic2,542counted 2022
Last inspectedMay 2023every 24 months

Location

StateWashington
CountyKing
Location4.6 N Jct I-90
CarriesExp N To 42nd Ramp
CrossesPasadena Pl NE
Coordinates47.65678, -122.32194

Physical Characteristics

MaterialConcrete Continuous
DesignBox Beam - Multiple
Total Length273.0 ft (83.2 m)
Max Span104.0 ft (31.7 m)
Deck Width26.9 ft (8.2 m)
Deck Area682.2 sq m
Main Spans4
Year Built1962

Traffic

Avg Daily Traffic2,542 (2022)
Truck Traffic1%
Lanes On Bridge1
Lanes Under Bridge2

Inspection & Ownership

Last InspectionMay 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number0006085A0000000

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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