Structure 85624000000000 · King County, WA

Holman RD NW over 8th AVE NW

Carries Holman RD NW over 8th AVE NW, Holman RD NW & 8th AVE NW.

Overall conditionFair

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

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

Elevation

Side view, colored by inspection rating
CAR · 15 FT67 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 6/9 · sets the ratingSubstructure 6/9 · sets the rating

67 ft end to end. 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.

Built197551 years old
Length66.9 ft20.4 m
Daily traffic30,500counted 2018
Last inspectedJune 2024every 24 months

Location

StateWashington
CountyKing
LocationHolman RD NW & 8th AVE NW
CarriesHolman RD NW
Crosses8th AVE NW
Coordinates47.69972, -122.36611

Physical Characteristics

MaterialPrestressed Concrete
DesignSlab
Total Length66.9 ft (20.4 m)
Max Span65.0 ft (19.8 m)
Deck Width61.0 ft (18.6 m)
Deck Area379.4 sq m
Main Spans1
Year Built1975

Traffic

Avg Daily Traffic30,500 (2018)
Truck Traffic5%
Lanes On Bridge4
Lanes Under Bridge2

Inspection & Ownership

Last InspectionJune 2024
Inspection FrequencyEvery 24 months
OwnerCity/Municipal Highway Agency
Historical SignificanceHistorical significance is not determined
Scour CriticalNot applicable
Structure Number085624000000000

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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