Structure 86234000000000 · King County, WA

Witte Road over Park Trail

Carries Witte Road over Park Trail, 0.5 Mi E Of Sr-168.

Overall conditionGood

Set by its lowest-rated component: Culvert at 7 of 9.

How ratings work
Culvertsets the rating7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT34 FT ACROSS25 FT0ELEVATION · LENGTHS TO SCALE
Culvert 7/9

A culvert 34 ft across. 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.

Built199630 years old
Length34.1 ft10.4 m
Daily traffic8,100counted 2022
Last inspectedOctober 2024every 24 months

Location

StateWashington
CountyKing
Location0.5 Mi E Of Sr-168
CarriesWitte Road
CrossesPark Trail
Coordinates47.38206, -122.04806

Physical Characteristics

MaterialConcrete
DesignCulvert
Total Length34.1 ft (10.4 m)
Max Span34.1 ft (10.4 m)
Deck Area142.5 sq m
Main Spans1
Year Built1996

Traffic

Avg Daily Traffic8,100 (2022)
Truck Traffic5%
Lanes On Bridge3

Inspection & Ownership

Last InspectionOctober 2024
Inspection FrequencyEvery 24 months
OwnerCity/Municipal Highway Agency
Historical SignificanceHistorical significance is not determined
Scour CriticalNot applicable
Structure Number086234000000000

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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