Structure 6286A0000000 · King County, WA

I-5 over Ravenna BLVD

Carries I-5 over Ravenna BLVD, 2.3 N Jct SR 520.

Overall conditionFair

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

How ratings work
Decksets the rating6/9 · Satisfactory
Superstructuresets the rating6/9 · Satisfactory
Substructuresets the rating6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT1,325 FT OVERALL250 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9Superstructure 6/9Substructure 6/9

1,325 ft end to end, longest span 99 ft: about 3.7 football fields. 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 multi-beam bridge.

Built196165 years old
Length1325.1 ft403.9 m
Daily traffic90,390counted 2023
Last inspectedJune 2024every 24 months

Location

StateWashington
CountyKing
Location2.3 N Jct SR 520
CarriesI-5
CrossesRavenna BLVD
Coordinates47.67389, -122.32092

Physical Characteristics

MaterialPrestressed Concrete
DesignStringer/Multi-beam
Total Length1325.1 ft (403.9 m)
Max Span99.1 ft (30.2 m)
Deck Width65.0 ft (19.8 m)
Deck Area7997.2 sq m
Main Spans20
Year Built1961

Traffic

Avg Daily Traffic90,390 (2023)
Truck Traffic5%
Lanes On Bridge4
Lanes Under Bridge8

Inspection & Ownership

Last InspectionJune 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number0006286A0000000

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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