Structure 85618000000000 · King County, WA

Oakesdale AVE SW over Springbrook Creek

Carries Oakesdale AVE SW over Springbrook Creek, 0.25 Mi N Of SW 43 ST.

Overall conditionFair

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

How ratings work
Culvertsets the rating6/9 · Satisfactory
Channelnot part of overall8/9 · Very Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT39 FT ACROSS25 FT0ELEVATION · LENGTHS TO SCALE
Culvert 6/9

A culvert 39 ft across with 4 openings. 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, so those are drawn as typical for a culvert.

Built197947 years old
Length38.7 ft11.8 m
Daily traffic9,325counted 2023
Last inspectedJune 2023every 24 months

Location

StateWashington
CountyKing
Location0.25 Mi N Of SW 43 ST
CarriesOakesdale AVE SW
CrossesSpringbrook Creek
Coordinates47.44403, -122.23281

Physical Characteristics

MaterialSteel
DesignCulvert
Total Length38.7 ft (11.8 m)
Max Span7.5 ft (2.3 m)
Deck Width140.1 ft (42.7 m)
Deck Area503.9 sq m
Main Spans4
Year Built1979

Traffic

Avg Daily Traffic9,325 (2023)
Truck Traffic21%
Lanes On Bridge5

Inspection & Ownership

Last InspectionJune 2023
Inspection FrequencyEvery 24 months
OwnerCity/Municipal Highway Agency
Historical SignificanceHistorical significance is not determined
Scour Critical5 — Stable for scour
Structure Number085618000000000

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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