Structure 86869000000000 · King County, WA

Harbor AVE SW over Rr

Carries Harbor AVE SW over Rr, SW Spokane ST & Admiral.

Overall conditionFair

Set by its lowest-rated component: Superstructure at 5 of 9.

How ratings work
Deck7/9 · Good
Superstructuresets the rating5/9 · Fair
Substructure7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT124 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 5/9 · sets the ratingSubstructure 7/9

124 ft end to end, longest span 63 ft. 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.

Built200125 years old
Length124.0 ft37.8 m
Daily traffic9,546counted 2022
Last inspectedOctober 2023every 24 months

Location

StateWashington
CountyKing
LocationSW Spokane ST & Admiral
CarriesHarbor AVE SW
CrossesRr
Coordinates47.57145, -122.37053

Physical Characteristics

MaterialPrestressed Concrete
DesignStringer/Multi-beam
Total Length124.0 ft (37.8 m)
Max Span63.0 ft (19.2 m)
Deck Width22.6 ft (6.9 m)
Deck Area260.8 sq m
Main Spans2
Year Built2001

Traffic

Avg Daily Traffic9,546 (2022)
Truck Traffic5%
Lanes On Bridge1

Inspection & Ownership

Last InspectionOctober 2023
Inspection FrequencyEvery 24 months
OwnerCity/Municipal Highway Agency
Historical SignificanceHistorical significance is not determined
Scour CriticalNot applicable
Structure Number086869000000000

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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